Quantum 3.5 manuale d’uso

6-00360-14 StorNext ® 3.5 StorNext Installation Guide Installation Guide Installation Guide Installation Guide[...]

StorNext 3.5 Installation Guide, 6-00360-14 Rev B , Octob er 2009, Made in USA. Quantum Corporation provides this publ ication “as is” without warranty of an y kind, either express or implied, including but not limited to the implied warranties of merc hantability or fitness for a particular purpose. Quantum Corporation may revise this publicat[...]

StorNext 3 .5 Install ation Guid e iii Content s Chapter 1 Installing StorNext File System and Storage Mana ger 1 Storage Manager System Requir ements .............. ............ .............. .............. ... 2 Operating System Requirements .............. .............. ........... .............. ......... 2 Hardware Requirements ............. [...]

Contents StorNext 3 .5 Install ation Guid e iv Operating System Requirements .............. .............. ........... .............. ....... 19 Hardware Requirements ............. ........... .............. .............. ........... .......... 19 LAN Requirements ........... ............ .............. ........... ........... .............. .....[...]

Contents StorNext 3 .5 Install ation Guid e v Using the Configuration Wizard ................. .............. ........... .............. .... 61 Configuring a Distributed LAN Client Se rver ................. ............ .............. . 65 Configuring a Distributed LAN Client on Linux .................. ........... .... 66 Configuring a Distribute[...]

Contents StorNext 3 .5 Install ation Guid e vi Viewing a Fibre Channel De vice ....... ........... .............. .............. ........... ........ 124 StorNext Log Rolling Administr ation ....... .............. ........... ............... .......... 125 Changing Log Rolling Times ........ ............ .............. ........... .............. ..[...]

StorNext 3 .5 Install ation Guid e vii Figures Figure 1 Pre-Installation Script ..................... .............. .............. .............. . 10 Figure 2 StorNext Installation Script ....................... .............. .............. .... 13 Figure 3 Configuration Menu .............. ........... .............. ............... ........... [...]

StorNext 3 .5 Install ation Guid e viii Figures Figure 18 Import/Export Client Conf iguration Window .......... ........... . 35 Figure 19 Select Platform Window ................... ............ .............. .............. . 40 Figure 20 Download Client Software Window ............ ............ .............. . 41 Figure 21 StorNext Installation [...]

StorNext 3 .5 Install ation Guid e ix Figures Figure 47 Server Administration: Stri pe Group Properties ................... 93 Figure 48 Server Administration: Quot a Properties ....... ............ ............ 95 Figure 49 Configuration Administrator .. ... ........... .............. ........... .......... 97 Figure 50 Server Configuration: Globa[...]

StorNext 3 .5 Install ation Guid e x T ables Table 1 Storage Manager Supported Platforms ...................... .............. 2 Table 2 Storage Manager Hardware Requireme nts ....... .............. ......... 3 Table 3 Required Disk LUN Labels .............. .............. ............... .............. 6 Table 4 StorNext Support Directories ......[...]

StorNext 3 .5 Install ation Guid e xi Tables Table 18 Client Config uration: Adva nced Cache Options .................. . 80 Table 19 Disk Labeler Dialog Box ........ ......... ........... .............. ........... ....... 84 Table 20 Simple File Syst em Configurat ion ................... .............. .......... 86 Table 21 File System Startup L[...]

StorNext 3.5 Installation Gui de xii Preface StorNext provides high performance data sharing and intelligent archiving that is compatible with an industry -leading range of operat ing systems, server platforms, and storage devices. StorNext includes two main components: • S torNext File System (SNFS) is high performance data sharing software that[...]

Preface Audience StorNext 3.5 Installation Gui de xiii Audience This document is intended for service profes sionals and system administrators who install StorNext software. The installer should have strong familiarity with the operat ing system on which StorNext is installed. Only service professionals, experien ced StorNext users, or individuals [...]

Preface Document Organization StorNext 3.5 Installation Gui de xiv Document Organization This document contains the following chapters: • Chapter 1 , “Installing StorNe xt File System and Storage Manager,” provides system requirements, pr e-installation inform ation, and instructions for installi ng StorNext File Syst em and Storage Manger on[...]

Preface Notational Conventions StorNext 3.5 Installation Gui de xv Not ational Conventions This manual uses the following conventions: The following formats indicate important information: Convention Example User input is shown i n Arial regular font. ./install.stornext User input variables are enclosed in angle brackets and are shown in Arial ital[...]

Preface Related Documents StorNext 3.5 Installation Gui de xvi Related Documents Documents related to StorNext are shown below: Quantum StorNext Document ation 0 W arning: Warnings indicate potential h azards to personal safety and are included to pr event injury . Document No. Document Title Document Descrip tion 6-01658-05 StorNext User’s Guide[...]

Preface Contacting Quantum StorNext 3.5 Installation Gui de xvii Cont acting Quantum More information about this product is available on the Quant um Service and Support website at www.quantum.com/ServiceandSupport . The Quantum Service and Support webs ite contains a collection of information, including answers to frequently asked questions (FAQs)[...]

StorNext 3 .5 Install ation Guid e 1 Chapter 1 1 Inst alling S torNext File System and S torage Manager This chapter describes how to instal l StorNext File System (SNFS) and StorNext Storage Manage r (SNS M) on a metadata controller (MDC). Install both SNFS and SNSM for st orage sy stems that require policy- based data movement (for example, syste[...]

Chapter 1 Installing StorNext File System and Storage Manager Storage Manager System Requirements StorNext 3 .5 Install ation Guid e 2 S torage Manager System Requirements To run StorNext File System an d Storage Manager, the metadata controller must meet all oper ating system, hardware, and LA N requirements. Operating Sy stem Requirement s 1 The [...]

Chapter 1 Installing StorNext File System and Storage Manager Storage Manager System Requirements StorNext 3 .5 Install ation Guid e 3 T able 2 S t orag e Manager Hardware Requirements Partitioning Local Hard Disks 1 StorNext can be installed on any local fi le syste m (including the root file system) on the MDC. However, for optimal performance, a[...]

Chapter 1 Installing StorNext File System and Storage Manager Storage Manager System Requirements StorNext 3 .5 Install ation Guid e 4 LAN Requirement s 1 The following LAN requirements must be met before installing StorN ext on the MDC: • In cases where gigabit networking hardware is used and maximum StorNext performance is required , a separate[...]

Chapter 1 Installing StorNext File System and Storage Manager Getting Ready to Install StorNext 3 .5 Install ation Guid e 5 Getting Ready to Inst all Before installing StorNext SNFS and SNSM, complete the followin g tasks to ensure successful insta llation: • Correctly configure all storage devices (see Configuring Storage Devices ). • If using[...]

Chapter 1 Installing StorNext File System and Storage Manager Getting Ready to Install StorNext 3 .5 Install ation Guid e 6 of the operating system running on the MDC as well as the operating system running on all connected clients. Disk LUNs can have one of three labels: VTOC, EFI, or sVTOC (short VTOC). Required disk LUN label sett ings based on [...]

Chapter 1 Installing StorNext File System and Storage Manager Getting Ready to Install StorNext 3 .5 Install ation Guid e 7 Inst alling the Linux Kernel Source Code 1 For management servers running Red Hat Enterprise Linux ve rsion 4 or 5, before in stalling SNFS and SNSM you must first install t he kernel header files (shipped as the kernel -devel[...]

Chapter 1 Installing StorNext File System and Storage Manager Pre-Installation Script StorNext 3 .5 Install ation Guid e 8 Pre-Inst allation Script The StorNext pre-installation script ( snPreInstall ) is included on the StorNext installation CD. When you run snPreInst all , you are prompted for info rmation about yo ur system. T h e pre-installati[...]

Chapter 1 Installing StorNext File System and Storage Manager Pre-Installation Script StorNext 3 .5 Install ation Guid e 9 • What is the maximum number of di rectories expected (in millions)? • What is the maximum number of files expected (in millions)? • How many copies will be stored for each file? • How many versions will be retained for[...]

Chapter 1 Installing StorNext File System and Storage Manager Pre-Installation Script StorNext 3 .5 Install ation Guid e 10 Figure 1 Pre-Installation Script 6 Follow the onscreen instructions, and answer each question when prompted. The script outputs results base d on the information you entered. Interpreting snPreInstall Output 1 After you enter [...]

Chapter 1 Installing StorNext File System and Storage Manager Pre-Installation Script StorNext 3 .5 Install ation Guid e 11 T able 5 Pre-Installation Script Recommenda tio n T ypes The pre-installation script bases di rectory location recommendations on the following criteria: • To ai d disaster recovery, the Data base and Journal directorie s sh[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3 .5 Install ation Guid e 12 S torNext Installation Script When you are ready to install StorNext, use the StorNext install ation script to install StorNext Fi le System and Storage Manager on the metadata controller. The installation scri pt also in[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3 .5 Install ation Guid e 13 3 List the installation directories on the CD. At the command prompt, type: ls -l 4 Identify the correct installation di rectory for your operating system and hardware platform, and then change to that directory. For exam[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3 .5 Install ation Guid e 14 6 Type the number corresponding to a menu option and press <Enter> . Installation menu options are described in Table 6 . T able 6 S torNe xt Installation Main Menu Options Changing Inst allation Configuration Optio[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3 .5 Install ation Guid e 15 Figure 3 Configuration Menu Changing Application Directory Locations 1 When you first enter the Configurat ion Menu, it displays recommended locations for StorNext application di rectories based on the available file syst[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3 .5 Install ation Guid e 16 3 To confirm the change, type yes and press <Enter> . To customize additional director y locations, repeat steps 1–3. 4 When you are done customizi ng the installation, press <Enter> to return to the Main Me[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3 .5 Install ation Guid e 17 Performing a n Inst allation Operation 1 To install StorNext us ing the opti ons specified on the Configuration Menu, perform an installation operation. 1 On the Main Me nu, type 2 and press <Enter> . The StorNext i[...]

StorNext 3 .5 Install ation Guid e 18 Chapter 2 2 Inst alling S torNext File System This chapter describes how to install StorNe xt File System (SNFS) on a metadata controller (MDC). Install SNFS to create data set s that can be shared by clients and application s running on multiple operating systems. To ensure successful oper ation, do the follow[...]

Chapter 2 Instal ling StorNext File Sy stem File System Requirements StorNext 3 .5 Install ation Guid e 19 File System Requirement s To run StorNext File System, the me tadata controller must meet all operating system and hardware requirements. Operating Sy stem Requirement s 2 The operating systems, releases an d kernels, and hardware platforms su[...]

Chapter 2 Instal ling StorNext File Sy stem Getting Ready to Install StorNext 3 .5 Install ation Guid e 20 T able 8 File System Hardware Requirements LAN Requirement s 2 The following LAN requirements must be met before installing StorN ext on the MDC: • In cases where gigabit networking hardware is used and maximum StorNext performance is requir[...]

Chapter 2 Instal ling StorNext File Sy stem Getting Ready to Install StorNext 3 .5 Install ation Guid e 21 • Correctly configure all storage devices (see Configuring Storage Devices on page 21 ). • If using LUNs larger than 1 TB, de cide on a label type and install any necessary operating system patches (s ee Planning for LUNs Larger than 1 TB [...]

Chapter 2 Instal ling StorNext File Sy stem Getting Ready to Install StorNext 3 .5 Install ation Guid e 22 patches or updates (for both MDC and client) as indicated in the notes for Table 9 . T able 9 Required Disk LUN Labels Note: After labeling a disk LUN, you must reboot systems running Solaris before they c an access the di sk LUN. Operating Sy[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Linux or Unix StorNext 3 .5 Install ation Guid e 23 Inst alling the Linux Kernel Source Code 2 For MDCs running Red Hat Linux or SUSE Linux Enterp rise Se rver you must install t he kernel source code as well as all tools required to compi le the kernel before installing[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Linux or Unix StorNext 3 .5 Install ation Guid e 24 2 Mount the StorNext installation CD and change to the CD root directory. 3 List the installation directories on the CD. At the command prompt, type: ls -l 4 Identify the correct installation di rectory for your operati[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Linux or Unix StorNext 3 .5 Install ation Guid e 25 T able 10 SNFS In stall ation Main Menu Options Changing Inst allation Configuration Options 2 Use the Configuration Menu to ch ange the location of application directories. On the Main Me nu, type 1 and press <Enter[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Linux or Unix StorNext 3 .5 Install ation Guid e 26 1 On the Configuration Menu, type the number that corresponds to the directory location you want to customize ( 1–6 ), and then press <Enter> . A list of available local fi le systems is shown. 2 To change the f[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3 .5 Install ation Guid e 27 2 When the installation is complete, press <Enter> to return to the Main Menu. 3 To exit the inst allation script, type 4 and press <Enter> . You can now access StorNext File System and run the configuration wizar[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3 .5 Install ation Guid e 28 • Manually configuring the TCP /IP information, which disables DHCP. You should use this method if any static IP addresses have been configured. • Editing the Windows registry to disable automatic IP address configuration[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3 .5 Install ation Guid e 29 4 Note the name and location of th e saved configuration file, and then click OK . 5 If prompted, click Ye s to continue, and then click OK to finish the removal. 6 When the removal is comp lete, click Ye s to reboot the syst[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3 .5 Install ation Guid e 30 Figure 9 S t orNext In st allation Window: Install S torNe xt 3 Click Inst all StorNe xt to begin installation. The StorNext setup wi zard appears ( figure 10 ). Figure 10 SNFS Setup: Wel co me 4 Click Next to continue. The L[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3 .5 Install ation Guid e 31 Figure 1 1 SNFS Setup: End- User License Agreement 5 Click the option to accept the license agreement, and then click Next to continue. The Customer Information window appears ( figure 12 ). Figure 12 SNFS Setup: Customer Inf[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3 .5 Install ation Guid e 32 Figure 13 SNFS Setup: Choose Setup T y pe 7 Click an installation option: • T y pical: (Recommended) Installs Stor Next File System, client software, and help files i n the default location ( C:Program FilesStorNext ). ?[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3 .5 Install ation Guid e 33 8 Click Inst all to continue. Wait while the setup wizard installs St orNext. When installation is complete, the Finish window appears ( figure 15 ). Figure 15 SNFS Setup: Finish 9 Click Finish to close the setup wizard. 10 O[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3 .5 Install ation Guid e 34 Figure 16 S torNext Installation Window: Configure S torNext 3 Click Configure S torNext . The StorNext Configuration window appears ( figure 17 ). Figure 17 S torNext Configuration Window 4 Click Import/Export Client Setti n[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3 .5 Install ation Guid e 35 Figure 18 Import/Export Client Configuration Window 5 Under Import , click Browse . Locate the client configuration ( *.reg ) file to import, and then click Open . Client configuration files saved duri ng removal of a previou[...]

StorNext 3 .5 Install ation Guid e 36 Chapter 3 3 Inst alling the S torNext Client This chapter describes how to install the StorNext client software. The StorNext client softw are lets you mount and work with StorNext file systems. To ensure successful oper ation, make sure the client system me ets all operating system and hardware requirements (s[...]

Chapter 3 Installing the StorNext Client Client System Requirements StorNext 3 .5 Install ation Guid e 37 Client System Requirement s To run the StorNext client software , the client system must meet all operating system and hardware requirements. Operating Sy stem Requirement s 3 The operating systems, releases an d kernels, and hardware platforms[...]

Chapter 3 Installing the StorNext Client Client System Requirements StorNext 3 .5 Install ation Guid e 38 Hardware Requirement s 3 To install and run the StorNext client software, the client system must meet the following minimum hardware requirements. For SAN (FC-attached) clients or for di stributed LAN clients: •1 G B R A M • 500 MB availabl[...]

Chapter 3 Installing the StorNext Client Downloading the StorNext Clien t Software StorNext 3 .5 Install ation Guid e 39 T able 12 Default Memory Consumed by cachebufsize To see information about the buffer cache afte r mounting file sy stems, use the cvdb(1) command with the -b option. To change the amount of memory used by the buffer cache at mou[...]

Chapter 3 Installing the StorNext Client Downloading the StorNext Clien t Software StorNext 3 .5 Install ation Guid e 40 2 When prompted, type the username and password for the MDC, and then click OK . (The default value for both username and password is admin .) The StorNext home page appears. 3 Do one of the following: • For a MDC running SNFS [...]

Chapter 3 Installing the StorNext Client Downloading the StorNext Clien t Software StorNext 3 .5 Install ation Guid e 41 Figure 20 Download Client Software Window 5 Click the download link that corresponds to your operating system version and hardware platform. (Depending on the operating system, you may have only one choice.) For example, for Red [...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3 .5 Install ation Guid e 42 Inst alling the S torNext Client on Linux or Unix After downloading the StorNext client software from the metadata controller, install it on the client system using the correct procedure for your operating system: • Insta[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3 .5 Install ation Guid e 43 5 Install the client software packag e. At the command prompt, type: rpm -ivh <package name> where <p acka ge name> is the name of the client software package you identified in step 4 . 6 Configure the boot orde[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3 .5 Install ation Guid e 44 9 Configure the file system to automa tically mount after reboot. To do this, edit t he /etc/fst ab file so that it contains the following line: <file system> <m ount point> cvfs verbose=yes 0 0 where <file s[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3 .5 Install ation Guid e 45 7 Edit the /usr/cvfs/config/fs nam eservers text file to contain the IP address of the MDC the client will connect to. The fsnameservers file on the client must be exactly the same as on the MDC. If the fsnameservers file d[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3 .5 Install ation Guid e 46 Inst alling the S torNext Client on HP-UX 3 To run the StorNext client software on HP-UX, first install the client software pack age, and then configur e the client. 1 Log on to the client system as root . 2 Change to the d[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3 .5 Install ation Guid e 47 7 Create a mount point for the file system. At the command prompt, type: mkdir -p <mount point> chmod 777 <mount point> where <mount point> is the directory path where you want the file system to be mounte[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3 .5 Install ation Guid e 48 4 List the packages extracted from the software archive file. At the command prompt, type: ls -l Identify the correct package to install. The cor rect package begins with snfs and ends with the .bff file name extension. 5 I[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Wind ows StorNext 3 .5 Install ation Guid e 49 Inst alling the S torNext Client on Windows The StorNext setup wi zard guides y o u through the pro cess of installing the StorNext client software on Wi ndows XP, Windows 2003 Server, or Windows Vista. Before installi ng StorNe[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Wind ows StorNext 3 .5 Install ation Guid e 50 The StorNext Installation window appears ( figure 21 ). Figure 21 S torNext Installation Window: Remove S torNext 3 Click Remove StorNext . A dialog box appears informing you that the current client configuration has been saved.[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Wind ows StorNext 3 .5 Install ation Guid e 51 2 Open the unzipped fold er and double-click the client software installer file. This file is named SnfsSetup32.exe (32-bit systems) or SnfsSetup64.exe (64-bit systems). The StorNext Installation window appears ( figure 22 ). Fi[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Wind ows StorNext 3 .5 Install ation Guid e 52 The License Agreement window appears ( figure 24 ). Figure 24 SNFS Setup: End- User License Agreement 5 Click the option to accept the license agreement, and then click Next to continue. The Customer Information window appears ([...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Wind ows StorNext 3 .5 Install ation Guid e 53 Figure 26 SNFS Setup: Choose Setup T y pe 7 Click an installation option: • T y pical: (Recommended) Installs the StorNext client software and help files in the default location ( C:Program File sSt orNext ). • Custom: Let[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Wind ows StorNext 3 .5 Install ation Guid e 54 8 Click Inst all to continue. Wait while the setup wizard installs St orNext. When installation is complete, the Finish window appears ( figure 28 ). Figure 28 SNFS Setup: Finish 9 Click Finish to close the setup wizard. 10 On t[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Wind ows StorNext 3 .5 Install ation Guid e 55 Figure 29 S torNext Installation Window: Configure S torNext 3 Click Configure S torNext . The StorNext Configuration window appears ( figure 30 ). Figure 30 S torNext Configuration Window 4 Click Import/Export Client Setti ngs [...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Wind ows StorNext 3 .5 Install ation Guid e 56 Figure 31 Import/Export Client Configuration Window 5 Under Import , click Browse . Locate the client configuration ( *.reg ) file to import, and then click Open . Client configuration files saved duri ng removal of a previous v[...]

StorNext 3 .5 Install ation Guid e 57 Chapter 4 4 Configuring S torNext This chapter describes how to config ure StorNext after installation. To configure StorNext, enter license information and create one or more file systems. In addition, on metadata c ontrollers (MDCs) running StorNext Storage Manager, you can add storage devices and media, crea[...]

Chapter 4 Con figuring StorNext StorNext GUI StorNext 3 .5 Install ation Guid e 58 S torNext GUI The StorNext GUI provides access to StorNext features and displays system status information. Use the St orNext GUI to create and work with file systems. In addition, on meta data controllers running Storage Manager, you can use the StorNext GUI to conf[...]

Chapter 4 Con figuring StorNext StorNext GUI StorNext 3 .5 Install ation Guid e 59 Figure 32 S torNext Home Page: File System and Storage Manager Figure 33 S torNext Home Page: File System Only[...]

Chapter 4 Con figuring StorNext Configuration Wizard StorNext 3 .5 Install ation Guid e 60 Configuration Wizard The first time you log onto the Stor Next GUI, the Configuration Wizard appears. The wizard guides you step-by-step through the process of configuring StorNext. The appearance of the wizard differs depending on if both Storage Manager and[...]

Chapter 4 Con figuring StorNext Configuration Wizard StorNext 3 .5 Install ation Guid e 61 Figure 35 S torNext Configuration Wizard: File System Only Displaying the Configuration Wizard 4 The Configuration Wizard appears each time you log on to StorNext until all steps of the wizard are complete d. You can also control the wizard manually: • To s[...]

Chapter 4 Con figuring StorNext Configuration Wizard StorNext 3 .5 Install ation Guid e 62 The following sections describe each step of the Conf igur ation Wizar d. Each step consists of a separate wizard that guid es y ou through a ta sk. To complete a task, follow the onscreen instructions. To see more detailed instructions for completing a task,[...]

Chapter 4 Con figuring StorNext Configuration Wizard StorNext 3 .5 Install ation Guid e 63 To display the Add New F ile System Wizard at any time, on the Config menu, click Add File System . For more information about adding file systems, see Chapter 6, “Managing the File System,” in the StorNext User’s Guide . Step 3: Add Library 4 The Add L[...]

Chapter 4 Con figuring StorNext Configuration Wizard StorNext 3 .5 Install ation Guid e 64 Step 6: Add Storage Disks 4 The Add Storage Disk wizard guides you through the steps of adding external storage disks to a managed system. The wizard le ts you specify which file systems to de fine as storage disks. Once defined, storage disk s can be used as[...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3 .5 Install ation Guid e 65 Configuring a Distribut ed LAN Client Server Traditional StorNext SAN clients access data disks using a hig h throughput, low-latency fibre channel connection. In addition, using the distributed LAN client and server feature, Stor Next[...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3 .5 Install ation Guid e 66 Configuring a Distributed LAN Client on Linux 4 To configure a StorNext client as a distr ibuted LAN client, edit mount options in the /etc/fstab file. 1 Stop the StorNext client. At the command prompt, type: /etc/init.d/cvfs stop 2 Co[...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3 .5 Install ation Guid e 67 Figure 36 sndpscfg Configuration Utility 5 Edit the default distributed LAN s erver configuration: • (Required) Uncomment (delete the # next to) the line that corresponds to the network interf ace used by the distribute d LAN server [...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3 .5 Install ation Guid e 68 T able 13 Distributed LAN Server Parameters 6 When you are done making edits, type :x to save and close the configuration file. The configuration is saved in the fi le dp serv er in the /user/cvfs/config/ directory. 7 Start the StorNex[...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3 .5 Install ation Guid e 69 Creating an Override Configuration 4 By default, the settings specified in the dps e rv er configuration file are used for all file sys tems mounted by the distributed LAN server. To use different sett ings for a file system, create an[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 70 Windows Configuration Utilities To configure StorNext File System or the StorNext client software on Windows operating systems, use the Windows configuration utilities. The configuration utilities let you set up a Windows-based metadata controller,[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 71 Client Configuration 4 The Client Configuration utility lets you view and modify properties for the StorNext client software. Use the utility to specify mount points and mount options, set various cache setti ngs, and configur e a distributed LAN s[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 72 Figure 37 Client Configuration: Mount Point T able 15 Client Configurati on: Mount Point Field / Button Description Map to Drive Letter Select Map to Drive Letter to map the drive to a specific drive le tter. Drive (Letter) Select the desire d driv[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 73 Distributed LAN 4 The Distributed LAN tab is used to enable and configure StorNext Distributed LAN (DLAN) Clients and Servers for a file system. The Enable Client and Enable Serve r radio buttons determine whether the system is a Client or Server. [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 74 Figure 38 Client Configuration: Distributed LAN T able 16 Client Configurati on: Distributed LAN Field / Button Description Disable Select this option to disable the StorNext client as a distributed LAN cli ent or distributed LANserver. Enable Clie[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 75 Advanced Mount Opti ons 4 The Mount Options tab ( figure ) displays the mount options for the drive currently selected on the Drive Mappings tab. Table 16 desc ribes the fields on the Distributed LAN tab. Number of T ransfer Buffers Specify the num[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 76 Figure 39 Client Configuration: Advanced Mount Options T able 17 Client Configurati on: Advanced Mount Options Field / Button Description Mount Retransmit Limit Specify the number of times the driver will re- transmit a message to the FS M. After a[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 77 Allow Diskless Mount When this box is checked, the file system can be mounted and accessed without all the disks being acce ssible in the file s ystem stripe groups. In this mode, file metadata can be viewed and changed, but no data can be accessed[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 78 I/O Retry Time Seconds When you choose Allow I/O Timouts, this option controls the I/O retry behavior. This parameter establishes the amount of time that may elapse during an I/O retr y sequence. An I/O retry sequence consists of the following: •[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 79 Advanced Cache Opt ions 4 The Data Buffer Cache keeps the file system data in memory on the local computer to speed up performance for small I/O operations. The Advanced Cache Options tab ( figure 40 ) displays performance values that control how m[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 80 Figure 40 Client Configuration: Advanced Cache Options T able 18 Client Configurati on: Advanced Cache Options Field / Button Description Enable Dat a Buffer Cache When this box is not checked, the file system will not buffer any dat a. All file s [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 81 Individual Bu ffer Size This option sets the size of each cache buffer. This determines the I/O transfer size used for the buffer cache. For optimal performance, Individual Buffer Size should match the RAID stripe size. If Individual Buffer Size is[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 82 Seconds for Shared/ Non-Shared The Attribute Flush Time parameters control the length of time attr ibutes are held on the client before they are flushed back to the FSM (unless there is an explicit attribute request from the FSM). The default value[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 83 Disk Device Labeler 4 The Disk Device Labeler utility lets you configure StorNext File System storage area network (SAN) disks. Use the Disk Device Labeler to create a list of disk labels, associated devi ce names, and (optional) the sectors to use[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 84 •C l i c k Label to write a volume label to the selected device(s) (see Labeling Disks below). •C l i c k UnLabel to remove the existing volu me label from the selected device(s). •C l i c k Exit to quit the Disk Device Labeler utilit y. •C[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 85 License I dentifier 4 Use the License Identifier utility to display the host license identifier. The host license id entifier is re quired to obtain a permanent license for StorNext. To run the License Identifier utility, on the Windows Star t menu[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 86 ( figure 43 ). Table 20 descri bes the fields on t he Simple Config uration Setup window. To configure a simple file system, select the disk s to use in the configuration. Specify setting s (file system name, block size, stripe size , and maximum c[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 87 St art File System Services 4 The Start File Syst em Services utilit y starts all StorNext services on an MDC or StorNext client. The StorNext services must be running on the MDC for file syst ems to be active and available. In addition, the StorNe[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 88 To stop StorNext File System services, on the Windows Star t menu, click All Programs > S torNext File System > S top System Services . To start the StorNext services again, re boot the system or use the Start File System Services utilit y. F[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 89 To run the File System Start u p List utility, on the Windows Start menu, click All Programs > S torNext File System > File System S t artup List . The FSM Services List window appears ( figure 44 ). Table 21 describes the fields on the FSM S[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 90 Re-initiali ze a Fi le System 4 The Re-initialize a Fi le System utility allows you to initia lize an existing file system. Initiali zing a file system prepares it for use. To initialize a file system, on the Windows Start menu, click All Programs [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 91 Figure 45 Server Administration On the Administrator window, do one of the following: • To connect to an MDC , click File > Con nect to . Type the host name and click OK . File systems on the server appear in the left pane. • To start a file[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 92 File System Properties 4 To view or change file system proper ties, click a file system in the left pane, and then click the file syste m name in the right pane. The File System Properties dialog box appears ( figure 46 ). Table 22 describes the fi[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 93 Str ipe Group Properties 4 To view or change stripe group properti es, expand a file system in the left pane, click Stripe Groups , and then click the stripe group name in the right pane. The Strip e Grou p Propertie s dialog box appears ( figure 4[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 94 T able 23 Server Administration: S tripe Group Properties Quot a Properties 4 Quotas define the amount of storage space a specified user or group is allowed to own. You can set hard or soft quota limits. To view or change quota properties, ex pand [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 95 Table 24 describes the fields on the User Quotas and Group Quot as tabs. After making changes, click OK . (Not all fields can be modified on this dialog box.) Figure 48 Server Administration: Quota Properties T able 24 Server Administration: Quota [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 96 Quality of Service Information 4 To view Quality of Service (QOS) info rmation for a file system, expand a file system in the left pane, and then click QOS . Qua lity of Serv ice information appears in the right pane , including stripe group, real-[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 97 Figure 49 Configuration Administrator On the Configuration Ad ministrato r window, do one of the following: •C l i c k New to create a new configuration file. •C l i c k Modify to edit an existing configuration file. Browse for the configuratio[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 98 Global Settings 4 Use the Global Settin gs tab ( figure 50 ) to specify general file s ystem properties. Table 25 describes the fields on the Global Settin gs tab. Figure 50 Server Configuration: Global Settings T able 25 Server Configuration: Glob[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 99 Quotas (Optional) Select to enf orce file system quotas and track storage usage for individual users and groups. Cluster File Lock i ng (Optional) Select to send a warning when a user attempts to access a file that is locked or already in use. File[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 100 Disk T ypes 4 Use the Disk Types tab ( figure 51 ) to define disk types used in the file system. Allocation Strategy Select the method of allocation for new disk blocks: • Round: Alternate between similar stripe groups. (Default) • Fill: Use t[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 101 Figure 51 Server Configuration: Disk T ypes On the Disk T ypes tab, do one of the following: • To add a new disk type, click New . • T o modify a disk type, select the disk type in the list and click Edit . • To delete a disk type, select it[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 102 Figure 52 Server Configuration: Enter New Disk Ty p e T able 26 Server Configuration: Enter New Disk T ype Disk Definitions 4 Use the Disk Definitions tab ( figure 53 ) to create disk def initions and modify disk specifications. Table 27 describes[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 103 Figure 53 Server Configuration: Disk Definitions T able 27 Server Configuration: Disk Definitions Field / Button Description Disks A vailable - New Click to create a new disk definition. Type a name for the disk and click OK . Disks A vailable - D[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 104 Stripe Group s 4 Use the Stripe Groups tab ( figure 54 ) to define stripe groups. (A stripe group is a logical storage unit consis ting of one or more disk drives.) Table 28 describes the f ields on the Stripe Groups tab. Figure 54 Server Configur[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3 .5 Install ation Guid e 105 T able 28 Server Configuration: S tripe Groups Field / Button Description Stripe Grou p s A vailable - New Click to create a new stripe group. Type a name for the stripe group and click OK . Stripe Grou p s A vailable - Delete Click to delete the [...]

Chapter 4 Con figuring StorNext Installing Promise RAID Contro ller Software StorNext 3 .5 Install ation Guid e 106 Inst alling Promise RAID Controller Software If you are using Promise RAID cont rollers on a Windows Server 2008 64- bit system, you must install Promise’s PerfectPath software. If yo u do not install this soft ware you can still ac[...]

Chapter 4 Con figuring StorNext Installing Promise RAID Contro ller Software StorNext 3 .5 Install ation Guid e 107 The login prompt will not appear after you re start. Instea d, the Windows Boot Manager scre en appears showing an error message: “Windows cannot verify the digi tal signature for this file” ( Windowssys tem32DRIVERS perfectpa[...]

Chapter 4 Con figuring StorNext Installing Promise RAID Contro ller Software StorNext 3 .5 Install ation Guid e 108 Figure 56 Windows Boot Manager Screen 2 4 On the second Windows Boot Manager screen, press F8 to specify advanced options. The Advanced Boot Options screen appears. Figure 57 Advanced Boot Options Screen[...]

Chapter 4 Con figuring StorNext Installing Promise RAID Contro ller Software StorNext 3 .5 Install ation Guid e 109 5 On the Advanced Boot Opt ions screen, u se the arrow k eys to choose the option Disable Driver Si gnature Enforcement . Choosing th is option will cause the system to display the login prompt normally after you reboot. 6 Restart you[...]

StorNext 3 .5 Install ation Guid e 110 Appendix A A Uninst alling S torNext If you no longer need to use StorNext, uninstall the software to remove it from your system. To uninstall StorNext, use the appropriate method for your operating system: • Uninstalling StorNext on Unix and Linux on page 110 • Uninstalling StorNext on Windows on page 113[...]

Appendix A Uninstalling StorNext Uninstalling StorNext on Unix and Li nux StorNext 3 .5 Install ation Guid e 111 Uninst alling SNSM and SNFS 1 To uninstall StorNext File S ystem and Storage Manager on an MDC running Unix or Linux, run th e installation script wit h the -remove option. To launch the script, use the correct StorNext ins tallation CD [...]

Appendix A Uninstalling StorNext Uninstalling StorNext on Unix and Li nux StorNext 3 .5 Install ation Guid e 112 Figure 58 S torNext Remove Main Menu 6 Type 2 and press <Enter> . 7 After the uninstall process i s complete, type 4 and press <Enter> to exit the installation script. Uninst alling the StorNe xt Client Sof tware 1 To uninsta[...]

Appendix A Uninstalling StorNext Uninstalling StorNext on Windows StorNext 3 .5 Install ation Guid e 113 pkgrm ADICsnfs •H P - U X : swremove –x mount_all_filesystems=false snfsclient •I B M A I X : installp –u <package name> where <package name> is the name of the client software package that was ins talled. • SGI IRIX: Inst [...]

StorNext 3 .5 Install ation Guid e 114 Appendix B B S torNext Administration T asks Use the following information to perform s pecific file system configuration tasks that do not ap ply to a typical StorNext set up. Sharing a Library Between Applications If two or more software applications (on one o r multiple machines), are configured to use the [...]

Appendix B StorNext Administration Tasks Sharing a Library Between Applica ti ons StorNext 3 .5 Install ation Guid e 115 1 When you match hardware devices to their corre ct slots on the Matched Devices With Slots screen (you will see this screen during the execution of Step 4 of the Configuration Wizard, Add T ape Drive ), only configure the tape d[...]

Appendix B StorNext Administration Tasks Manually Modifying Storage Ma nage r Configuration StorNext 3 .5 Install ation Guid e 116 Manually Modifying S tora ge Manager Configuration StorNext employs global parameters that define the Storage Manager configuration. Althoug h the default values in t hese files are suff icient for most installations, y[...]

Appendix B StorNext Administration Tasks Manually Modifying Storage Ma nage r Configuration StorNext 3 .5 Install ation Guid e 117 filesize .config Configuration File 2 The filesize.config configuration file is used to control the file steering feature and has these characteristics: • Allows the placement of files on di fferent media ty pes, base[...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 1.4.2 StorNext 3 .5 Install ation Guid e 118 Connecting to a S torNext Network Using Xsan 1.4.2 If you are using Apple Xsan 1.4.2, follow the procedure below to connect to a StorNext network. The procedure consists of mou nting the StorNext file system onto the OSx[...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 1.4.2 StorNext 3 .5 Install ation Guid e 119 On Windows: the fsnamerservers file is located at %cvfsroot%config (where %cvfsroot% is the directory where the StorNext software is insta lled). This directory is usually located in C:Program FilesS tornextconfig[...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 1.4.2 StorNext 3 .5 Install ation Guid e 120 sudo mount -t acf s fsname /V olum es/fsname (where < fsname > is the name of the file system). The SNFS file system should now be mounted on the OS X computer. Creating the automount.p list File 2 In order to moun[...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 2 StorNext 3 .5 Install ation Guid e 121 Connecting to a S torNext Network Using Xsan 2 If you are using Apple Xsan 2.2 or ea rlier, follow the procedure below to connect to a StorNext network. The procedure consists of mounting the StorNext file system onto the Ma[...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 2 StorNext 3 .5 Install ation Guid e 122 <?xml vers i on="1.0" encoding="UTF- 8"?> <!DOCTYPE plist PUBLIC "-//Apple/ /DTD PLIST 1.0/ /EN" "http:// www .apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="[...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 2 StorNext 3 .5 Install ation Guid e 123 <?xml version="1.0" encod ing="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple Com puter//DTD PLIST 1. 0//EN" "http:// www .apple.com/DTDs/PropertyList-1.0.dtd"> <plist versio[...]

Appendix B StorNext Administration Tasks Viewing a Fibre Channel Device StorNext 3 .5 Install ation Guid e 124 8 Run the following in Terminal to update Xsan with the new file system information: launchctl unload /System/Library/ LaunchDaemons/com.apple.xsan.plist launchctl load /System/Library/ LaunchDaemons/co m.apple.xsan.plist If the file syste[...]

Appendix B StorNext Administration Tasks StorNext Log Rolling Administrati on StorNext 3 .5 Install ation Guid e 125 S torNext Log Rolling Administration Use the following procedures to conf igure StorNext log rolling options . Changing Log Rolling Tim es 2 Use this procedure to change the frequency of rolling the StorNext logs. This process requir[...]

Appendix B StorNext Administration Tasks Avoiding Poor System Performa nce StorNext 3 .5 Install ation Guid e 126 A voiding Poor System Performance Most systems run administrator scri pts to rebuild namespace databases and/or to remove certain files. Unfo rtunately, running these scripts can degrade StorNext performance. It is recommended that you [...]

StorNext 3 .5 Install ation Guid e 127 Appendix C C S torNext Files StorNext creates a series of files that ar e used and modified to configure a file system. This section includes an exp anded example.cfg file, a cluster- wide central control file, and a listing of the most commonly used StorNext files with descript ions and locations for each. Th[...]

Appendix C StorNext Files The example.cfg File StorNext 3 .5 Install ation Guid e 128 # ******************* ************************** ************************** ** GlobalSuperUse r Y es ## Must be set to Y es for SNMS Managed File Systems ## WindowsSecurity No Quotas No FileLocks No DataMigration No ## SNMS Managed File Systems Only ## InodeExpand[...]

Appendix C StorNext Files The example.cfg File StorNext 3 .5 Install ation Guid e 129 Sectors XXXXXXXX ## Sectors Per Di sk From Command "cvlabel -l" ## SectorSize 512 [DiskT ype JournalDrive] ##1+1 Raid 1 Mirrored Pair## Sectors XXXXXXXX SectorSize 512 [DiskT ype VideoDrive] ##8+1 Raid 5 Lun for Video## Sectors XXXXXXXX SectorSize 512 [D[...]

Appendix C StorNext Files The example.cfg File StorNext 3 .5 Install ation Guid e 130 [Disk CvfsDisk3] S tatus UP T ype VideoDrive [Disk CvfsDisk4] S tatus UP T ype VideoDrive [Disk CvfsDisk5] S tatus UP T ype VideoDrive [Disk CvfsDisk6] S tatus UP T ype VideoDrive [Disk CvfsDisk7] S tatus UP T ype VideoDrive [Disk CvfsDisk8] S tatus UP T ype Video[...]

Appendix C StorNext Files The example.cfg File StorNext 3 .5 Install ation Guid e 131 S tatus UP T ype Aud ioDrive [Disk CvfsDisk12] S tatus UP T ype Aud ioDrive [Disk CvfsDisk13] S tatus UP T ype Aud ioDrive [Disk CvfsDisk14] S tatus UP T ype Da t aDrive [Disk CvfsDisk15] S tatus UP T ype Da t aDrive [Disk CvfsDisk16] S tatus UP T ype Da t aDrive [...]

Appendix C StorNext Files The example.cfg File StorNext 3 .5 Install ation Guid e 132 Journal No Exclusive Y es Read Enabled Wr it e Enabled S trip eBreadth 256K MultiPathMethod Rotate Node CvfsDisk0 0 [S tripeGroup JournFiles] S tatus UP Journal Y es MetaData No Exclusive Y es Read Enabled Wr it e Enabled S trip eBreadth 256K MultiPathMethod Rotat[...]

Appendix C StorNext Files The example.cfg File StorNext 3 .5 Install ation Guid e 133 Node CvfsDisk8 6 Node CvfsDisk9 7 [S tripeGroup Audi oFiles] S tatus UP Exclusive Y es##Exclusive StripeG roup for Audio File Only## Affinity AudFiles Read Enabled Wr it e Enabled S tripeBreadth 1M MultiPathMethod Rotate Node CvfsDisk10 0 Node CvfsDisk1 1 1 Node C[...]

Appendix C StorNext Files Cluster-Wide Central Control StorNext 3 .5 Install ation Guid e 134 Cluster-Wide Central Control The purpose of this feature (current ly supported on the Linux platform only,) is to provide cluster-wide cent ral control. A central control file called nss-cctl.xml provides a way to restrict the behavior of SNFS cluster node[...]

Appendix C StorNext Files Cluster-Wide Central Control StorNext 3 .5 Install ation Guid e 135 there to be overlapping in IP address between an individual host and netgrp, but the individual host shou ld be defined be fore the netgrp. The following controls are currently supported: 1 mountReadOnly : Control whether a client should mount as read- onl[...]

Appendix C StorNext Files Cluster-Wide Central Control StorNext 3 .5 Install ation Guid e 136 # ownership of file or dire ctory on a S tornext file system. # 4. Whether cvadmin running on certain client is allowed to have super # admin privilege to run de st ructive command s suc h start/ sto p file # system, refresh disks , change quota setting ,e[...]

Appendix C StorNext Files Cluster-Wide Central Control StorNext 3 .5 Install ation Guid e 137 # to take ownership of file or directory of a stornext file system. The # default is "take ownership not allowed". # 4. snfsAdmin: whether cvadmin running on a host is allowed to have # super admin privilege to run priv ileged comman ds such as s[...]

Appendix C StorNext Files Commonly Used SNFS Files StorNext 3 .5 Install ation Guid e 138 < client type="netgrp"> <network value="192.168.1.0"/> <maskbit s value="24"/> < /client> < controls> <snfsAdmin v alue="true"/> <t akeOwnership value="true"/> <moun[...]

Appendix C StorNext Files Commonly Used SNFS Files StorNext 3 .5 Install ation Guid e 139 cvadmin — A ll ows yo u to vi ew a nd mod if y th e a cti ve SNF S sy st em( s) . cvaffinity — Associates a stripe group with a media type. cvcp — A high-speed file copy utility. cvdb — A client debugging tool. cvdbset — A wrapper for cvdb. cvfsck ?[...]

Appendix C StorNext Files Commonly Used SNFS Files StorNext 3 .5 Install ation Guid e 140 nssdbg.out — Displays debug and status messages from fsmpm. • /usr/cvfs/CLIENTS/ — The following are client installation files for various operating systems. sn_dsm_aix52_client.tar sn_dsm_irix65f_client.tar sn_dsm_irix65m_client.tar sn_dsm_linuxRH_80i38[...]

Appendix C StorNext Files Commonly Used SNFS Files StorNext 3 .5 Install ation Guid e 141 • /usr/cvfs/lib/ cvextapi.a — A SNFS API library. • libcvfsdmapi.a — A SNFS DMAP I library. •/ u s r / c v f s / s r c / cvapi.c — A sample API application.[...]

StorNext 3 .5 Install ation Guid e 142 Appendix D D Quality of Service Guide This appendix describes how to configure and use the Stor Next File System (SNFS) Quality of Service ( QOS) fe ature. QOS allows real-time applications to reserve some amount of bandwidth on the storage system. This is known as real-time I/O (RTIO). SNFS gates (that is, th[...]

Appendix D Quality of Service Guide Overview StorNext 3 .5 Install ation Guid e 143 Overview QOS is stripe-group centric; all c onfiguration and operations act on a specific stripe group. This al lows stripe groups with differing access characteristics to use different rea l-tim e settings. When a cli ent requests a certain amount of real-time I/O,[...]

Appendix D Quality of Service Guide Configuration StorNext 3 .5 Install ation Guid e 144 Non-Realtime Operation 4 Beginning with StorNext release 3.5, QOS has been enhance d to reserve bandwidth for non-realtime I/O clients. Differentiating between realtime and non-realtime I/O clients should resu lt in better bandwidth utilization and overall perf[...]

Appendix D Quality of Service Guide Configuration StorNext 3 .5 Install ation Guid e 145 characterized as being a stripe wi dth in size. This makes the best utilization of the disks in the stri pe group and maximizes the transfer rate. Internally, non-real-time I/O is tracked by number of I/O operations per second. An I/O operation is a minimum of [...]

Appendix D Quality of Service Guide Configuration StorNext 3 .5 Install ation Guid e 146 available. SNFS relies on the correct se tting in the configur ation file; if the storage system changes (for example , because of a new d isk array,) the user must re-qualify the I/O su bsystem to determine the amount of bandwidth availabl e. This amount will [...]

Appendix D Quality of Service Guide Configuration StorNext 3 .5 Install ation Guid e 147 RTIO Upper Bound 4 The limit will be specified in term s of I/Os per second (parameter Rtios ) or in terms of MB/sec (parameter Rtmb ). Case is not sensitive. Note that I / Os p e r se c o n d a r e I / Os o f a ny s i z e to t h e d is k s u bs y s te m . E i [...]

Appendix D Quality of Service Guide Configuration StorNext 3 .5 Install ation Guid e 148 available. For this reason, QOS always reserves some amount of I/O for non-real-time I/O. The minimum amount of non-real-tim e I/O reserved for non-real-time applications is one MB/sec. This ca n be changed via the stripe group section parameters (again, case i[...]

Appendix D Quality of Service Guide Real-tim e I/O StorNext 3 .5 Install ation Guid e 149 tab of the SNFS control panel on Wind ows platforms . The default is sixty (60) seconds. This means that after sixty seconds without non-real-time I/O on a stripe group, the non-real-time token for th at stripe group is released. The parameter should be specif[...]

Appendix D Quality of Service Guide Real-tim e I/O StorNext 3 .5 Install ation Guid e 150 Also, assume there is only one stripe group for us er data in the file system. As recommended by Quantum, there may be other stripe groups for metadata and journal that are not shown. SetRtio 4 Initially, all stripe groups in the fi le system are in non-real-t[...]

Appendix D Quality of Service Guide Real-tim e I/O StorNext 3 .5 Install ation Guid e 151 The client automatically issues a call to the FSM with the RT_CLEAR flag specifying the amount of real-time I/ O set on the file. If multiple handles are open on the file—each with a diff erent amount of real-time I/O—only the last fil e close triggers the[...]

Appendix D Quality of Service Guide Non-Realtime I/O Configuration StorNext 3 .5 Install ation Guid e 152 not be counted against the non-real-t ime I/O. System de signers typically allow for some amount of overage in their I/O subsystem to account for non-gated files. Calculatin g A vai lable RTIO 4 When the FSM receives a request for RTIO, it take[...]

Appendix D Quality of Service Guide Non-Realtime I/O Configuration StorNext 3 .5 Install ation Guid e 153 time. Non-RTIO requests on client s with an RVIO reservation is subject to the same throttling me chanism as non-RTIO requests on normal clients. 4 Other active non-RTIO clients equall y share the bandwidth left over after the possible RTIO and[...]

Appendix D Quality of Service Guide Callbacks StorNext 3 .5 Install ation Guid e 154 Callbacks The cornerstones of the communications between the FSM and the client are callbacks and tokens. A callback is an unsolicited message from the FSM to the client requesting that the client adjust its real-time I/O parameters. The callback contains a token t[...]

Appendix D Quality of Service Guide Callbacks StorNext 3 .5 Install ation Guid e 155 In the above diagram, a process on cl ient A requests some amount of RTI O in St ep 1. Since this is the first re quest, the FSM issues callbacks to all connected clients (Steps 2- 5) informing them that the stripe group is now in real-time mode. The client s respo[...]

Appendix D Quality of Service Guide Callbacks StorNext 3 .5 Install ation Guid e 156 Figure 61 Callback Retraction Example In Figure 61 , Client A requests some amount of RTIO as in Figure 60 . However, assume that Client C did not respond to the init ial callback in time (step 7). The FSM will return a failure to Client A for the initial RTIO requ[...]

Appendix D Quality of Service Guide Callbacks StorNext 3 .5 Install ation Guid e 157 them that they will need a token to perform any non-real-time I/O. The first I/O after receiving the callback will then request a non-real-time I/O token from the FSM. The FSM calculates the amount of non-re al-time bandwidth using the following formul a: avail_nrt[...]

Appendix D Quality of Service Guide Callbacks StorNext 3 .5 Install ation Guid e 158 Figure 62 Non-Real-time T oken Adjustments In Figure 62 , assu me the stripe group is already in real-time mode as a result of an RTI O request from client A. Clients B and D are doing non- real-time I/O to the stripe group and have a token that specifies the amoun[...]

Appendix D Quality of Service Guide Callbacks StorNext 3 .5 Install ation Guid e 159 FSM Failures 4 If the FSM crashes or is stopped, ther e is no immediate affect on real-time (ungated) I/O. As long as the I/O do es not need to contact the FSM for some reason (attribute update, extent requ est, etc.), the I/O w ill continue. From the standpoint of[...]

Appendix D Quality of Service Guide Monitoring StorNext 3 .5 Install ation Guid e 160 to all clients that have tokens info rming them of the new amount of non- real-time I/O available. Client T oken Releases 4 While it is not a failure case, the ha ndling of a client token release is exactly the same as in the case where the client disconnected. Al[...]

Appendix D Quality of Service Guide Sharing Disk Resources StorNext 3 .5 Install ation Guid e 161 Performance counters are not enable d by default in the client. To enable them, you must execute cvdb -P ; this toggles the state of collection. To turn off the perfmon counters, do another cvdb -P . To re-enable, again do cvdb -P , and so on. To clear[...]