Quantum 6-00360-15 manuale d’uso

6-00360-15 StorNext ® 3.1.3 StorNext Installation Guide Installation Guide Installation Guide Installation Guide[...]

StorNext 3.1.3 Installation Guide, 6-00360-15 Rev B , September 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 publi[...]

StorNext 3.1.3 Installation Guide 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 3.1.3 Installation Guide iv Hardware Requirements ............. .............. .............. .............. .............. .... 20 LAN Requirements ........... ............ .............. .............. .............. .............. .... 20 Getting Ready to Install ..... .............. .............. .............. ..............[...]

Contents StorNext 3.1.3 Installation Guide v Configuring a Distributed LAN Client on Linux .................. .............. . 68 Configuring a Distributed LAN Serve r on Linux .............. .............. .... 68 Windows Configuration Utilit ies .............. .............. .............. .............. .......... 72 Client Configur ation. ... .[...]

Contents StorNext 3.1.3 Installation Guide vi Log Rolling Options ............... .............. .............. .............. .............. ........ 123 Avoiding Poor System Performance ...... .............. .............. ............... .......... 124 Appendix C StorNext Files 125 The example.cfg File ...................... .............. .....[...]

StorNext 3.1.3 Installation Guide vii Figures Figure 1 Pre-Installation Script .................. .............. ................. .............. . 10 Figure 2 StorNext Installation Script ....................... ................. .............. . 13 Figure 3 Configuration Menu .............. .............. .............. .............. .......... [...]

StorNext 3.1.3 Installation Guide 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 Win[...]

StorNext 3.1.3 Installation Guide ix Figures Figure 47 File System Startup List .................... .............. ............... ............ 90 Figure 48 Server Administration ......................... .............. .............. .......... 92 Figure 49 Server Administration: File System Properties .... ................. . 93 Figure 50 Server[...]

StorNext 3.1.3 Installation Guide 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 3.1.3 Installation Guide xi Tables Table 18 Disk Labeler Dialog Box ........ ...... .............. .............. .............. .... 85 Table 19 Simple File Syst em Configurat ion ...................... .............. ....... 87 Table 20 File System Startup List .................. .............. .............. .............. . 90 Table 21[...]

StorNext 3.1.3 Installation Guide xii Preface StorNext provides high performance data sharing and intelligent archiving that is compatible with an industry -leading range of operating systems, server platforms, and storage devices. StorNext includes two main components: • StorNext File System (SNFS) is high performance data sharing software that [...]

Preface Audience StorNext 3.1.3 Installation Guide 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 3.1.3 Installation Guide 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 o[...]

Preface Notational Conventions StorNext 3.1.3 Installation Guide 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 ita[...]

Preface Related Documents StorNext 3.1.3 Installation Guide 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 6-01658-06 StorNext User’s Guid[...]

Preface Contacting Quantum StorNext 3.1.3 Installation Guide 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 3.1.3 Installation Guide 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, sys te[...]

Chapter 1 Installing StorNext File System and Storage Manager Storage Manager System Requirements StorNext 3.1.3 Installation Guide 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 o[...]

Chapter 1 Installing StorNext File System and Storage Manager Storage Manager System Requirements StorNext 3.1.3 Installation Guide 3 T able 2 S torage Manager Hardware Requirements Note: The RAM requirements in Tabl e 2 are for running StorNext File System and Storage Mana ger only. Running additional software (including the StorNe xt client softw[...]

Chapter 1 Installing StorNext File System and Storage Manager Storage Manager System Requirements StorNext 3.1.3 Installation Guide 4 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, as well as to aid disaster recovery, follow these re[...]

Chapter 1 Installing StorNext File System and Storage Manager Getting Ready to Install StorNext 3.1.3 Installation Guide 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 3.1.3 Installation Guide 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 o[...]

Chapter 1 Installing StorNext File System and Storage Manager Getting Ready to Install StorNext 3.1.3 Installation Guide 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 the kernel header files (shipped as the kernel -devel o[...]

Chapter 1 Installing StorNext File System and Storage Manager Pre-Installation Script StorNext 3.1.3 Installation Guide 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-installatio[...]

Chapter 1 Installing StorNext File System and Storage Manager Pre-Installation Script StorNext 3.1.3 Installation Guide 9 • What is the maximum number of di rectories e xpected (in millions)? • What is the maximum number of file s expected (in millions)? • How many copies will be stored for e ach file? • How many versions will be retained f[...]

Chapter 1 Installing StorNext File System and Storage Manager Pre-Installation Script StorNext 3.1.3 Installation Guide 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 a[...]

Chapter 1 Installing StorNext File System and Storage Manager Pre-Installation Script StorNext 3.1.3 Installation Guide 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 aid disaster recovery , the Dat abase and J ournal directories sho[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3.1.3 Installation Guide 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 ins[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3.1.3 Installation Guide 13 Figure 2 S t orNext In st allation Script[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3.1.3 Installation Guide 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 torNext Installation Main Menu Options Changing Inst allation Configuration Options[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3.1.3 Installation Guide 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 syste[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3.1.3 Installation Guide 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 Men[...]

Chapter 1 Installing StorNext File System and Storage Manager StorNext Installation Script StorNext 3.1.3 Installation Guide 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 in[...]

StorNext 3.1.3 Installation Guide 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 followi[...]

Chapter 2 Instal ling StorNext File Sy stem File System Requirements StorNext 3.1.3 Installation Guide 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 sup[...]

Chapter 2 Instal ling StorNext File Sy stem File System Requirements StorNext 3.1.3 Installation Guide 20 Hardware Requirement s 2 The minimum amount of RAM and available hard disk space required to run StorNext SNFS are presented in Table 8 . If necessary, upgrade the RAM and local disk storage in the MDC to meet the minimum requirements before in[...]

Chapter 2 Instal ling StorNext File Sy stem Getting Ready to Install StorNext 3.1.3 Installation Guide 21 • If using Gigabi t Ethernet, disable jumbo frames and TOE (TCP offload engine). Getting Ready to Inst all Before instal ling StorNext SNFS, complet e the following tasks to ensure successful installati on: • Correctly configure all storage[...]

Chapter 2 Instal ling StorNext File Sy stem Getting Ready to Install StorNext 3.1.3 Installation Guide 22 Planning for LUNs Larger than 1 TB 2 StorNext supports LUNs greater than 1 TB in size if they are allowed by the opera ting system. To ena ble support for 1 TB o r larger LUNs, all StorNext LUNs must be correctly la beled according to the requi[...]

Chapter 2 Instal ling StorNext File Sy stem Getting Ready to Install StorNext 3.1.3 Installation Guide 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 compile the kernel before installing SNFS. St orNext will not [...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Linux or Unix StorNext 3.1.3 Installation Guide 24 Inst alling S torNext File System on Linux or Unix When you are ready to install StorNext , use the SNFS installation script to install StorNext File System on a me tadata controller running Linux or Unix. The installati[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Linux or Unix StorNext 3.1.3 Installation Guide 25 Figure 5 SNFS Installation Script 6 Type the number corresponding to a menu option and press <Enter> . Installation menu options are described in Table 10 . T able 10 SNFS Install ation Main Menu Options Changing I[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Linux or Unix StorNext 3.1.3 Installation Guide 26 Figure 6 Configuration Menu When you first enter the Configurat ion Menu, it displays recommended locations for StorNext application di rectories based on the available file systems detected by the installation script. T[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3.1.3 Installation Guide 27 Figure 7 S t orNext In st allation S tatus 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 F[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3.1.3 Installation Guide 28 Removing a Previous V ersion of StorNex t 2 If a previous version of StorNext exis ts on the system, you must remove it before installing the new version. 1 Insert the StorNext installation CD. 2 Browse to the root direc tory [...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3.1.3 Installation Guide 29 Running the Se tup Wizard 2 To launch the setup wi zard, use the co rrect StorNext installation CD for your operating system. 1 Insert the StorNext installation CD. 2 Browse to the root direc tory of th e installation CD and d[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3.1.3 Installation Guide 30 Figure 10 SNFS Setup: Wel co me 4 Click Next to continue. The License Agreement window appears ( figure 11 ). Figure 1 1 SNFS Setup: End- User License Agreement 5 Click the option to accept the license agreement, and then clic[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3.1.3 Installation Guide 31 Figure 12 SNFS Setup: Customer Information 6 Type your name and the name of your company or organization in the boxes, and then click Next to continue. The Choose Setup T ype window appears ( figure 13 ). Figure 13 SNFS Setup:[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3.1.3 Installation Guide 32 • Custom: Lets you choose which components to install and specify an installation location. When ready, click Next . • Complete: Same as a typical installation. The Ready to Install window appears ( figure 14 ). Figure 14 [...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3.1.3 Installation Guide 33 9 Click Finish to close the setup wizard. 10 On the StorNext Inst allation window, click Exit . You are prompted to reboot the system. 11 Click Ye s to reboot. You can now configure StorNext File System. For more information, [...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3.1.3 Installation Guide 34 Figure 17 S torNext Configuration Window 4 Click Import/Export Client Setti ngs . The Import/Export Client Configuration window appears ( figure 18 ).[...]

Chapter 2 Instal ling StorNext File Sy stem Installing StorNext File System on Windows StorNext 3.1.3 Installation Guide 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 previous[...]

StorNext 3.1.3 Installation Guide 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 meets al l operating system and hardware requirements (se[...]

Chapter 3 Installing the StorNext Client Client System Requirements StorNext 3.1.3 Installation Guide 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 3.1.3 Installation Guide 38 Hardware Requirement s 3 To install and run the StorNext client software, the client system must meet the following minimum hardware r equirements. 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 C lient Software StorNext 3.1.3 Installation Guide 39 Downloading the S torNext Client Software The StorNext client software can be downloaded from a metadata controller. (To download the client so ftware, the client system mu st have network access to the MDC.) 1 On the client syste[...]

Chapter 3 Installing the StorNext Client Downloading the StorNext C lient Software StorNext 3.1.3 Installation Guide 40 Figure 19 Select Platform Window 4 In the list, click the operating sy stem running on the client system, and then click Next . The Download Client Sof tware window appears ( figure 20 ).[...]

Chapter 3 Installing the StorNext Client Downloading the StorNext C lient Software StorNext 3.1.3 Installation Guide 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 H[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3.1.3 Installation Guide 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: • Instal[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3.1.3 Installation Guide 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 order[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3.1.3 Installation Guide 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 sy[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3.1.3 Installation Guide 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 do[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3.1.3 Installation Guide 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 di[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3.1.3 Installation Guide 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 mounted[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3.1.3 Installation Guide 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 In[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3.1.3 Installation Guide 49 Inst alling the S torNext Client on SGI IRIX 3 To run the StorNext client software on SGI IRIX, 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 [...]

Chapter 3 Installing the StorNext Client Installing the StorNext Client on Linux or Unix StorNext 3.1.3 Installation Guide 50 8 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 mounted[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Clie nt on Wind ows StorNext 3.1.3 Installation Guide 51 Inst alling the S torNext Client on Windows The StorNext setup wi zard guides y o u through the process of installing the StorNext client software on Wi ndows XP, Windows 2003 Server, or Windows Vista. Before installi ng StorNex[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Clie nt on Wind ows StorNext 3.1.3 Installation Guide 52 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. 4 Note the name and location of the saved configuration[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Clie nt on Wind ows StorNext 3.1.3 Installation Guide 53 Figure 22 S torNext Installation Window: Install S torNe xt 3 Click Inst all StorNe xt to begin installation. The StorNext setup wizard appears ( figure 23 ). Figure 23 SNFS Setup: Wel co me 4 Click Next to continue. The License[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Clie nt on Wind ows StorNext 3.1.3 Installation Guide 54 Figure 24 SNFS Setup: End- User License Agreement 5 Click the option to accept the license agreement, and then click Nex t to continue. The Customer Information window appears ( figure 25 ). Figure 25 SNFS Setup: Customer Inform[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Clie nt on Wind ows StorNext 3.1.3 Installation Guide 55 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 sStorNex t ). • Custom: Let[...]

Chapter 3 Installing the StorNext Client Installing the StorNext Clie nt on Wind ows StorNext 3.1.3 Installation Guide 56 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 Clie nt on Wind ows StorNext 3.1.3 Installation Guide 57 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 Clie nt on Wind ows StorNext 3.1.3 Installation Guide 58 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 3.1.3 Installation Guide 59 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, creat[...]

Chapter 4 Con figuring StorNext StorNext GUI StorNext 3.1.3 Installation Guide 60 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 confi[...]

Chapter 4 Con figuring StorNext StorNext GUI StorNext 3.1.3 Installation Guide 61 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 3.1.3 Installation Guide 62 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 3.1.3 Installation Guide 63 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 se[...]

Chapter 4 Con figuring StorNext Configuration Wizard StorNext 3.1.3 Installation Guide 64 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 task . 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 3.1.3 Installation Guide 65 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 Li[...]

Chapter 4 Con figuring StorNext Configuration Wizard StorNext 3.1.3 Installation Guide 66 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 disks can be used as a[...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3.1.3 Installation Guide 67 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, StorNext c[...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3.1.3 Installation Guide 68 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 Con[...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3.1.3 Installation Guide 69 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 distributed LAN server wh[...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3.1.3 Installation Guide 70 T able 12 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 StorNext[...]

Chapter 4 Con figuring StorNext Configuring a Distributed LAN Clien t Server StorNext 3.1.3 Installation Guide 71 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 3.1.3 Installation Guide 72 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 3.1.3 Installation Guide 73 Client Configuration 4 The Client Configuration utility lets you view and modify properties for the StorNext client software. Use the utilit y to add name servers, map file systems to drives, and configure a distributed LAN server or a distributed L[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 74 Figure 37 Client Configuration: Drive Mappings T able 14 Client Configuration: Drive Mappings Note: You must disable the Windows Recycle Bin for each local drive that is mapped to a file system. Right click the Recycle Bin icon and click Properties [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 75 FS Name Servers 4 To access a file s ystem, you must first sp ecify the name server (StorNext host) where the file system is locate d. The first host in the list is the primary name server. Additional hosts are backups for use in the event of a fail[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 76 Figure 38 Client Configuration: FS Name Servers T able 15 Client Configuration: FS Name Servers Authentication 4 If a Windows client accesses file sy stems that are also accessed by non- Windows clients, you must specify an authentication method: Ac[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 77 user to a user ID and group on the SAN. (Changes are applied when you click Apply . You do not need to restart the client system.) Use the Authentication tab ( figure 39 ) to specify an aut hentication method. Table 16 describes the fields on the Au[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 78 Mount Options 4 The Mount Options tab ( figure 40 ) displays the mount options for the drive currently selected on the Drive Mappings tab. Use Active Dire ctory Click to use LDAP to obta in the Active Directory/Services for UNIX (SFU) mapping for th[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 79 Figure 40 Client Configuration: Mount Options Syslog Le vel 4 The system log level determines the types of messages the file system records in the system event log. Use the Syslog Level tab ( figure 41 ) to specify the system log level. The None lev[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 80 Figure 41 Client Configuration: Syslog Level Cache Parameters 4 The Cache Parameters ta b ( figure 42 ) displays performance values that control how many file system l ookup names are kept in memory. Caution: Changing the values on the C ache Param [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 81 Figure 42 Client Configuration: Cache Pa rameters Distributed LAN 4 A StorNext client running on Windows can be configured as a distributed LAN client or a distributed LAN serv e r. (This is a licensed feature.) • Distributed LAN Server: A distrib[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 82 Use the Distributed LA N tab ( figure 43 ) to configure a distributed LAN server or a distributed LAN client. Table 17 describes the fields on the Distributed LAN tab. Figure 43 Client Configuration: Distributed LAN T able 17 Client Configuration: D[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 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 3.1.3 Installation Guide 84 To run the Disk Device Labeler utility, on the Windows Start menu, click All Programs > S torNext File System > Disk Dev ice Labeler . The Disk Labeler window ( figure 44 ) appears. Figure 44 Disk Device Labeler On the Disk Labeler window, do [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 85 Labeling Disks 4 When you select one or more disks and click Label , a confirmation screen appears asking if you are sure you want to proce ed. Click OK to continue. The Disk Labe le r dialog box appears ( figure 45 ). Table 18 describes the fields [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 86 License I dentifier 4 Use the License Identifier utility to display the host license identifier. The host license id entifier is requir ed 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 3.1.3 Installation Guide 87 Figure 46 Simple File System Configuration T able 1 9 Simple File System Configuration Field / Button Description Clear Selections Click to deselect al l devices in the list. Select All Click to select all devices in the list. File System Name Type [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 88 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 StorNex[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 89 Check (Read-Only) a File System 4 The Check (Read-Only) a File System utility allows you to check a StorNext file system for metada ta co rruption (due to a system crash, bad disk, or other failure). Run the utilit y on an MDC that contains the file[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 90 Figure 47 File System S tartup List T able 20 File System S tartup List Field / Button Description New Click to add a file system to the FSM services list. Type the name of the file system and click OK . Delete Click to remove the selected file syst[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 91 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 3.1.3 Installation Guide 92 Figure 48 Server Administration On the Administrator window, do one of the following: • To connect to an MDC, click File > Connect to . Type the host name and click OK . File systems on the server appear in the left pane. • To start a file sy[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 93 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 Fi le System Properties dialog box appears ( figure 49 ). Table 21 describes the fi[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 94 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 50[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 95 T able 2 2 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 3.1.3 Installation Guide 96 Table 23 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 51 Server Administration: Quota Properties T able 2 3 Server Administration: Quota [...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 97 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 Se rvice information appears in the right pane , including stripe group, real-t[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 98 Figure 52 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 configuration[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 99 Global Settings 4 Use the Global Settin gs tab ( figure 53 ) to specify general file system properties. Table 24 describes the fields on the Global Settin gs tab. Figure 53 Server Configuration: Global Settings T able 24 Server Configuration : Globa[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 100 Quotas (Optional) Select to enforce 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 3.1.3 Installation Guide 101 Disk T ypes 4 Use the Disk Types tab ( figure 54 ) 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: Fill t[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 102 Figure 54 Server Configuration: Disk T ypes On the Disk T ypes tab, do one of the following: • To add a new disk type, click New . • To modify a disk type, sel ect 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 3.1.3 Installation Guide 103 Figure 55 Server Configuration: Enter New Disk Ty p e T able 25 Server Configuration : Enter New Disk T ype Disk Definitions 4 Use the Disk Definitions tab ( figure 56 ) to create disk def initions and modify disk specifications. Table 26 describes[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 104 Figure 56 Server Configuration: Disk Definitions T able 26 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 3.1.3 Installation Guide 105 Stripe Group s 4 Use the Stripe Groups tab ( figure 57 ) to define stripe groups. (A stripe group is a logical storage unit consis ting o f one or more disk drives.) Table 27 describes the f ields on the Stripe Groups tab. Figure 57 Server Configur[...]

Chapter 4 Con figuring StorNext Windows Configuration Utilities StorNext 3.1.3 Installation Guide 106 T able 27 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 Windows Configuration Utilities StorNext 3.1.3 Installation Guide 107 RtT o kenTi meout Type the number of seconds to wait for clients to respond to a token callback. Rtmb Type the number of MBs per second available to real-time applica tions using the Quality of Service (QOS) API. RtmbReserve Type the minimum number[...]

StorNext 3.1.3 Installation Guide 108 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 108 • Uninstalling StorNext on Windows on page 111 [...]

Appendix A Uninstalling StorNext Uninstalling StorNext on Unix and Li nux StorNext 3.1.3 Installation Guide 109 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 f[...]

Appendix A Uninstalling StorNext Uninstalling StorNext on Unix and Li nux StorNext 3.1.3 Installation Guide 110 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 S torNext Client Sof tware 1 To uninstal[...]

Appendix A Uninstalling StorNext Uninstalling StorNext on Windows StorNext 3.1.3 Installation Guide 111 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 remove cv_base remove cv_clnt g[...]

StorNext 3.1.3 Installation Guide 112 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 s[...]

Appendix B StorNext Administration Tasks Sharing a Library Between Applica ti ons StorNext 3.1.3 Installation Guide 113 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 dr[...]

Appendix B StorNext Administration Tasks Manually Modifying Storage Ma nage r Configuration StorNext 3.1.3 Installation Guide 114 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 suffici ent for most installations, yo[...]

Appendix B StorNext Administration Tasks Manually Modifying Storage Ma nage r Configuration StorNext 3.1.3 Installation Guide 115 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 ff erent media types, based[...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 1.4.2 StorNext 3.1.3 Installation Guide 116 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 mounti ng the StorNext file system onto the OSx [...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 1.4.2 StorNext 3.1.3 Installation Guide 117 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 3.1.3 Installation Guide 118 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 mount[...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 2 StorNext 3.1.3 Installation Guide 119 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 Mac[...]

Appendix B StorNext Administration Tasks Connecting to a StorNext Network Using Xsan 2 StorNext 3.1.3 Installation Guide 120 <?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 3.1.3 Installation Guide 121 <?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 version[...]

Appendix B StorNext Administration Tasks Viewing a Fibre Channel Device StorNext 3.1.3 Installation Guide 122 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 system[...]

Appendix B StorNext Administration Tasks StorNext Log Rolling Administrati on StorNext 3.1.3 Installation Guide 123 S torNext Log Rolling Administration Use the following procedures to conf igure StorNext log rolling opti ons. Changing Log Rolling Tim es 2 Use this procedure to change the frequency of rolling the StorNext logs. This process require[...]

Appendix B StorNext Administration Tasks Avoiding Poor System Performa nce StorNext 3.1.3 Installation Guide 124 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 r[...]

StorNext 3.1.3 Installation Guide 125 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 expanded example.cfg file and a listing of the most commonly used StorNext files with descriptions and locations for each. The example.cfg File The following is lis ti[...]

Appendix C StorNext Files The example.cfg File StorNext 3.1.3 Installation Guide 126 # ******************* ************************** ************************** ** 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 ## InodeExpandM[...]

Appendix C StorNext Files The example.cfg File StorNext 3.1.3 Installation Guide 127 [DiskT ype MetaDrive] ##1+1 Raid 1 Mirror ed Pair## 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[...]

Appendix C StorNext Files The example.cfg File StorNext 3.1.3 Installation Guide 128 S tatus UP T ype VideoDrive [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 CvfsDi[...]

Appendix C StorNext Files The example.cfg File StorNext 3.1.3 Installation Guide 129 [Disk CvfsDisk1 1] 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 [...]

Appendix C StorNext Files The example.cfg File StorNext 3.1.3 Installation Guide 130 S tatus UP MetaData Y es 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 25[...]

Appendix C StorNext Files The example.cfg File StorNext 3.1.3 Installation Guide 131 Node CvfsDisk6 4 Node CvfsDisk7 5 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 CvfsD[...]

Appendix C StorNext Files Commonly Used SNFS Files StorNext 3.1.3 Installation Guide 132 Commonly Used SNFS Files The following is a list of commonly used SNFS files and provides the name and location of the files installe d during a SNFS installation. Each entry also includes a brief descri ption of the file’s utility in SNFS functionality. • [...]

Appendix C StorNext Files Commonly Used SNFS Files StorNext 3.1.3 Installation Guide 133 fsnameservers — Identifies the SNFS name service coordinators. license.dat — The SNFS license file. • /usr/cvfs/data/<FS Name>/log/ Cvlog — debug and runt ime messages • /usr/cvfs /debug/ cvfsd.out — Displays debug and status messages from cvf[...]

Appendix C StorNext Files Commonly Used SNFS Files StorNext 3.1.3 Installation Guide 134 cvlabels.example cvpaths.example example.cfg fsmlist.example fsnameservers.example fsports.example fsroutes.example • /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 [...]

StorNext 3.1.3 Installation Guide 135 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) feature. QOS allow s 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, thr[...]

Appendix D Quality of Service Guide Overview StorNext 3.1.3 Installation Guide 136 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 3.1.3 Installation Guide 137 Configuration The primary configuration for QOS is in the FSM configuration file. No client configuration is required, although there is a QO S tuning parameter that can be specified when the file system is mounted. Unit of I/O 4 Real-time I/O is based on well-f[...]

Appendix D Quality of Service Guide Configuration StorNext 3.1.3 Installation Guide 138 ios_sec = mb_sec / (stripe_breadth * stripe_depth *fs_blocksi ze ) For example, with a file system blocksize of 4k, a stripe_breadth of 384, and a stripe_depth of four, the equivalent number of I/Os/sec for each well- formed I/O would be 216 Mb/se c / (384 * 4 *[...]

Appendix D Quality of Service Guide Configuration StorNext 3.1.3 Installation Guide 139 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 t[...]

Appendix D Quality of Service Guide Configuration StorNext 3.1.3 Installation Guide 140 Reserve 4 To prevent deadlock, the QOS implementation never allows zero I/O / sec for non-real-time I/O. Otherwise, a system could block with many critical file sy stem resources held waiting f or I/O to become available. This is especially true via flush-on- cl[...]

Appendix D Quality of Service Guide Configuration StorNext 3.1.3 Installation Guide 141 T oken Timeout s 4 The RtT okenT imeout parameter controls the amount of time the FSM waits for clients to respond to callbacks . In most normal SANs , the default two- second setting is sufficient. This val ue may need to be changed for a SAN that has a mixture[...]

Appendix D Quality of Service Guide Real-tim e I/O StorNext 3.1.3 Installation Guide 142 Real-time I/O A process requests real-t ime (ungated) I/O by using the SNFS External API SetRtio call ( F_SETRIO ioctl ). A library function is included in the External API sample source cod e that provides all the required cross- platform handling. As an examp[...]

Appendix D Quality of Service Guide Real-tim e I/O StorNext 3.1.3 Installation Guide 143 SetRtio 4 Initially, all stripe groups in the fi le system are in non-real-time mode. Clients make their reques ts directly to the I/O subsystem without any gating. In our example, the pr ocess requires 186 MB/sec and the system designers know there will never [...]

Appendix D Quality of Service Guide Real-tim e I/O StorNext 3.1.3 Installation Guide 144 This automatic clearing of real-time I/O is carried out in the context of the process that is closing the file. If the FSM c annot be reached for some reason, the request is enqueued on a daemon and the process closing the file is allowed to continue. In th e b[...]

Appendix D Quality of Service Guide Callbacks StorNext 3.1.3 Installation Guide 145 Calculatin g A vai lable RTIO 4 When the FSM receives a request for rtio, it takes the amount reserved into consideration. The reserve amount functions as a soft limit beyond which the FSM will not trai pse. The calculation for rtio is as follows: avail_rtio = rtio_[...]

Appendix D Quality of Service Guide Callbacks StorNext 3.1.3 Installation Guide 146 Figure 60 Callback Flow for Initial RTIO Request 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 gr[...]

Appendix D Quality of Service Guide Callbacks StorNext 3.1.3 Installation Guide 147 Callback Failures 4 The FSM must handle a case where a cl ient does not respond to a callback within the specified timeout p eriod ( RtT okenTimeout ). If a client does not respond to a callback, the FSM must a ssume the worst: that it is a rogue that could wreak ha[...]

Appendix D Quality of Service Guide Callbacks StorNext 3.1.3 Installation Guide 148 real-time mode after the original caller has received an err or code. Both the FSM and clients log their actions ext ensively to syslog , so if this situation arises it can be detected. In Figure 61 , if the stripe group were already in real-time mode the FSM would [...]

Appendix D Quality of Service Guide Callbacks StorNext 3.1.3 Installation Guide 149 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 rtio request from client A. Clie nts B and D are doing non-real- time I/O to the stripe group and have a token that specifies the amount[...]

Appendix D Quality of Service Guide Callbacks StorNext 3.1.3 Installation Guide 150 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 3.1.3 Installation Guide 151 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. All[...]

Appendix D Quality of Service Guide Sharing Disk Resources StorNext 3.1.3 Installation Guide 152 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 [...]