ATTO Technology SC 5700 manual

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Buen manual de instrucciones

Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones ATTO Technology SC 5700. La falta del manual o facilitar información incorrecta al consumidor constituyen una base de reclamación por no estar de acuerdo el producto con el contrato. Según la ley, está permitido adjuntar un manual de otra forma que no sea en papel, lo cual últimamente es bastante común y los fabricantes nos facilitan un manual gráfico, su versión electrónica ATTO Technology SC 5700 o vídeos de instrucciones para usuarios. La condición es que tenga una forma legible y entendible.

¿Qué es un manual de instrucciones?

El nombre proviene de la palabra latina “instructio”, es decir, ordenar. Por lo tanto, en un manual ATTO Technology SC 5700 se puede encontrar la descripción de las etapas de actuación. El propósito de un manual es enseñar, facilitar el encendido o el uso de un dispositivo o la realización de acciones concretas. Un manual de instrucciones también es una fuente de información acerca de un objeto o un servicio, es una pista.

Desafortunadamente pocos usuarios destinan su tiempo a leer manuales ATTO Technology SC 5700, sin embargo, un buen manual nos permite, no solo conocer una cantidad de funcionalidades adicionales del dispositivo comprado, sino también evitar la mayoría de fallos.

Entonces, ¿qué debe contener el manual de instrucciones perfecto?

Sobre todo, un manual de instrucciones ATTO Technology SC 5700 debe contener:
- información acerca de las especificaciones técnicas del dispositivo ATTO Technology SC 5700
- nombre de fabricante y año de fabricación del dispositivo ATTO Technology SC 5700
- condiciones de uso, configuración y mantenimiento del dispositivo ATTO Technology SC 5700
- marcas de seguridad y certificados que confirmen su concordancia con determinadas normativas

¿Por qué no leemos los manuales de instrucciones?

Normalmente es por la falta de tiempo y seguridad acerca de las funcionalidades determinadas de los dispositivos comprados. Desafortunadamente la conexión y el encendido de ATTO Technology SC 5700 no es suficiente. El manual de instrucciones siempre contiene una serie de indicaciones acerca de determinadas funcionalidades, normas de seguridad, consejos de mantenimiento (incluso qué productos usar), fallos eventuales de ATTO Technology SC 5700 y maneras de solucionar los problemas que puedan ocurrir durante su uso. Al final, en un manual se pueden encontrar los detalles de servicio técnico ATTO Technology en caso de que las soluciones propuestas no hayan funcionado. Actualmente gozan de éxito manuales de instrucciones en forma de animaciones interesantes o vídeo manuales que llegan al usuario mucho mejor que en forma de un folleto. Este tipo de manual ayuda a que el usuario vea el vídeo entero sin saltarse las especificaciones y las descripciones técnicas complicadas de ATTO Technology SC 5700, como se suele hacer teniendo una versión en papel.

¿Por qué vale la pena leer los manuales de instrucciones?

Sobre todo es en ellos donde encontraremos las respuestas acerca de la construcción, las posibilidades del dispositivo ATTO Technology SC 5700, el uso de determinados accesorios y una serie de informaciones que permiten aprovechar completamente sus funciones y comodidades.

Tras una compra exitosa de un equipo o un dispositivo, vale la pena dedicar un momento para familiarizarse con cada parte del manual ATTO Technology SC 5700. Actualmente se preparan y traducen con dedicación, para que no solo sean comprensibles para los usuarios, sino que también cumplan su función básica de información y ayuda.

Índice de manuales de instrucciones

  • Página 1

    ATTO FastStream Storage Controller Installation and Operation Manual FastStream SC 5300 Fibre Channel to SCSI SAN Storage A ppliance FastStream SC 5500 Fibre Channel to SAS/SATA SAN Storage Appliance FastStream SC 5700 Fibre Channel to Fibre Cha nnel SAN Storage Appliance[...]

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    ATTO Technology, Inc. 155 CrossPoint Parkway Amherst, New York 14068 USA www.attotech.com Tel (716) 691-1999 Fax (716) 691-9353 Sales support: sls@attotech.com Technical support: Monday -- Friday, 8am-8pm EST techsupp@attotech.com © 2008 ATTO Technology, Inc. All rights reserved. All br and or product names are trademarks of their respective holde[...]

  • Página 3

    Contents 1.0 ATTO FastStream Offers Data Protection ...... ................................. ............ 1 FastStream 5000 Series features RAID protection features Audio/video features Additional FastStream 5300 fe atures Additional FastStream 5500 fe atures Additional FastStream 5700 fe atures 1.1 FastStream SC 5300 Physical Attributes ......... [...]

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    4.0 Configure Storage into RAID Groups .............. ................ ............................. 13 Features you may choose Auto-Rebuild Fault Tolerance Initialization Selecting an application Preliminary steps Quick Digita l Video Audio General Digital Video, General IT or Database Creating a custom setup 5.0 Modify System Valu es ............[...]

  • Página 5

    8.0 Manage ATTO Devices, Co nfigurations ........ ................................. .............. 37 Creating a unique name for your FastStream Discovering, managing other ATT O devices Saving or restoring a configuration 9.0 Interface Options ............. ................................. ............................................. 39 Using th[...]

  • Página 6

    1 ATTO Technology Inc. FastStream SC Installation and Operation Manual 1.0 ATTO FastStream Offe rs Data Protection The ATTO FastStream™ Storage Controller is an ideal solution for the cost sensitive demands of today’s networked storage environments, offering great performance, OS independence, simplified management, and RAID protection for all [...]

  • Página 7

    2 Additional FastStream 5500 features • 2 independent 4-Gb Fibre Channel Host Interfaces ba ckward comp atible with 2-G b and 1-Gb FC operation • 2 3-Gb miniSAS device interfaces provide 8 lanes of SAS/SATA conne ctivity supporting initiator mode for any co mbination of up to 64 SAS and SATA devices • SES (SCSI Enclosure Services) support Add[...]

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    3 ATTO Technology Inc. FastStream SC Installation and Operation Manual 1.1 FastStream SC 5300 Physical Attributes The ATTO FastStream SC 5300 is a Fibre Channel to SCSI storage appliance which can be seamlessly integrated into a new or an existing storage environment. The ATTO FastStream SC 5300 is available in a desktop model and in an industry-st[...]

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    4 SCSI por ts: A green LED on each port indicates activity if is lit. LEDs on the faceplate are: A bicolor Ready/Fault LED is lighted green to indicate ready, lighted yellow to show a faulted condition, and off indicates not ready. SCSI port s: A green LED on each port indicates activity if is lit. Fibre Channel ports: bicolor LED indicates FC spee[...]

  • Página 10

    5 ATTO Technology Inc. FastStream SC Installation and Operation Manual 1.2 FastStream SC 5500 Physical Attributes The ATTO FastStream SC 5500 is a Fibre Channel to SAS/SATA SAN storage appliance which can be seamlessly integrated into a new or an existing storage environment. The ATTO FastStream SC 5500 is available in a desktop model, an industry-[...]

  • Página 11

    6 Ethernet port connector: a lighted green LED shows a valid link; off indicates that no link is present, and blinking indicates activity. A separate bicolor LED indicates 10/100/1000 MbE speed: green on indicates 100 MbE; yellow on indicates 1000 MbE, and off indicates 10 MbE Fibre Channel port: a lighted green LED indicates link; off means no lin[...]

  • Página 12

    7 ATTO Technology Inc. FastStream SC Installation and Operation Manual 1.3 FastStream SC 5700 Physical Attributes The ATTO FastStream SC 5700 is a Fibre Channel to Fibre Channel storage appliance which can be seamlessly integrated into a new or an existing storage environment. The ATTO FastStream SC 5700 is available in an industry-standard 1U form[...]

  • Página 13

    8 LEDs on the front are: A green power LED A bicolor Ready/Fault LED: lighted green to indicate ready, lighted yellow to show a faulted condition, and off indicates not ready. Fibre Channel ports: bicolor LED indicates FC speed. If it is off, speed is 1-Gb; if it is green, 2-Gb, and yellow indicates 4-Gb FC. A separate green LED indicates activity [...]

  • Página 14

    9 ATTO Technology Inc. FastStream SC Installation and Operation Manual 2.0 Install the FastStream Storage Control ler If you have not already completed the instructions on the Quick Start page packed with your FastStream, use the following instructions to install the FastStream. Unpacking the packi ng box; verifying contents • The FastStream. Not[...]

  • Página 15

    10 2S e l e c t Internet Options . 3 In the Internet Options screen, select the Security tab. 4 Click on the Trusted Sites icon. 5 Click on the Sites butt on. 6 In the text bo x Add this Web site to the zone , add the IP address of th e appliance. You may use wild cards. 7 Click on Add. 8 Uncheck the Require server ve rification check box. 9 Click [...]

  • Página 16

    11 ATTO Technology Inc. FastStream SC Installation and Operation Manual 3.0 Ensure Drive Integrity The ATTO FastStream initialize and verify drive feature discovers and re-maps bad sectors on drives providing reliable media for your RAID groups. Before creating any RAID group you should initialize and verify the drives selected to be in the RAID gr[...]

  • Página 17

    12 After creating RAID groups 1 If you are not alrea dy in the ExpressNAV Storage Manag er, type the IP address of your appliance in a standar d browser. On the splash screen, click Enter Here. In the box provided , type in your user name and password, and click OK . 2 Click on the Diagnostics button on the left hand side of the ExpressNAV Storage [...]

  • Página 18

    13 ATTO Technology Inc. FastStream SC Installation and Operation Manual 4.0 Configure Storage into RAID Groups The ATTO FastStream allows configuration of storage into DVRAID, JBOD, RAID Level 0, 1, 1+0, 4 or 5 for the FastStream SC 5300 and 5700, plus RAID Level 6 for the FastStream SC 5500, with the ability to create multiple partitions. RAID is [...]

  • Página 19

    14 • If no unallocated drive is available, you must replace the faulted driv e and a re build begins . If you are using a FastStream 5300, you must initiate a system scan using the CLI command BlockDevScan to discover the drive before the rebuild can take place; all other appliances automatically discover the additional drive. • Hot Spares are [...]

  • Página 20

    15 ATTO Technology Inc. FastStream SC Installation and Operation Manual Quick D igital Vide o 1 After choo sing Quick Digital Video, the Setup Wizard page appears. Select your operating system. 2 If you chose Windows , click Yes, the system restarts. Af ter the res tart completes, continue to Step 3 . If you chose Mac , continue on to Step 3 . 3 If[...]

  • Página 21

    16 Creating a custom setup If the application setups do not suit your needs, you may use Custom Setup to configure the FastStream. 1 After choo sing Custom Setup button, the RAID Setup Wizard page appears. Click on Next . 2 Decide if all drives are to be available to both ports. • If you select Yes , the same node name is assigned to both ports. [...]

  • Página 22

    17 ATTO Technology Inc. FastStream SC Installation and Operation Manual • 512 bytes is the default size for most operating systems. • For Windows XP (32-bit support) select 4 KB sectors to enable large volume support (greater th an 2 TB). 15 Select a SpeedRead option. SpeedRead looks ahead during reads and stores the data in cache memory.The op[...]

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    18[...]

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    19 ATTO Technology Inc. FastStream SC Installation and Operation Manual 5.0 Modify System Values Default values are appropriate for most configurations, but may be modified for your needs using ATTO ExpressNAV Storage Manager. It is best practice to change the default user name and password to a user name and password important to you. Other config[...]

  • Página 25

    20 6 Make any changes. • Appliance name : Th e appliance name is a unique 8-characte r identifier which is displayed at the to p of each screen. Yo u may find this useful if you are managing multiple ATTO devices from a single workstation. Refer to Manage ATTO Devices, Configurations on page 37. • Time and da te : use a remote time server to se[...]

  • Página 26

    21 ATTO Technology Inc. FastStream SC Installation and Operation Manual 6.0 Monitor Storage, Configurations You may determine the performance of drives attached to the FastStream using various displays and tests in ExpressNAV Storage Manager. The following instructions assume you have already set up at least one RAID group. The ATTO FastStream coll[...]

  • Página 27

    22 Configuration Display page Clicking on Details from the Health and Status Monitor page gives you added information about various aspects of the FastStream and attached storage. Click on the arrow next to the group you wish to view. • RAID groups : RAID group names, RAID status, available Hot Spares, number of drives, RAID Level, number of part[...]

  • Página 28

    23 ATTO Technology Inc. FastStream SC Installation and Operation Manual 6.1 Phone Home: Email Alerts Phone home Email notification allows the FastStream to send an Email message to you, a network administrator or other users when certain events occur with the FastStream. Serious error messages are sent immediately, while messages for less serious e[...]

  • Página 29

    24 Exhibit 6.1-1 The Error Notification pag e.[...]

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    25 ATTO Technology Inc. FastStream SC Installation and Operation Manual 6.2 Drive Diagnostics You may determine the performance of drives attached to the FastStream using various displays and tests in ExpressNAV Storage Manager. The following instructions assume you have already set up at least one RAID group. The ATTO FastStream collects various m[...]

  • Página 31

    26 Drive performance and health Another way to determine your drives’ status is to follow the Preliminary instructions, above, and cl ick on the Drive Performance and Health menu item. 1 Follow the instructions in Preliminary steps above. 2 Click on the Drive Performance an d Health menu item . 3T h e Drive Performance and Health page appears. ?[...]

  • Página 32

    27 ATTO Technology Inc. FastStream SC Installation and Operation Manual 6.3 SCSI Enclosure Services (SES) Drive enclosures may provide a SCSI Enclosure Processor which indicates enclosure health status, drive identification and drive fault. The ATTO Storage Controller recognizes drive enclosures that provide SCSI Enclosure Services (SES) informatio[...]

  • Página 33

    28 Identifying SES elements The SES Monitor page found by clicking on Details in the Enclosur e Status section of the Health and Status Monitor page shows SES information about specific enclosures (see Exhibit 6.3-4 ). If you would like information about specific drives of the RAID groups or enclosures of which they are members, use the Identify SE[...]

  • Página 34

    29 ATTO Technology Inc. FastStream SC Installation and Operation Manual Monitoring SES elements Enclosures which provide SES information are listed in the Enclosur e Status section of the Health and Status Monitor (see Exhibit 3 ) and through the Enclosure Serv ices arrow on the Manage menu. Use the Health and Status Monitor 1 If you are not alrea [...]

  • Página 35

    30 Use the Manage menu 1 If you are not already in the ExpressNAV Storage Manager, type the IP address of your appliance in a standar d browser. On the spla sh screen, click Enter Here. In the box provide d , type in your user name and password, and click OK . 2T h e Health and Status Monito r page appear s. Click on the Manage menu item on the lef[...]

  • Página 36

    31 ATTO Technology Inc. FastStream SC Installation and Operation Manual 7.0 Modify Storage Use the ExpressNAV Storage Manager to replace a failed drive, add new drives or redesign RAID configurations. You may modify various aspects of storag e using the Manage Menu found by clicking on the tab on the left hand side of the ExpressNAV Storage Manager[...]

  • Página 37

    32 If you want to continue click Yes. The configuration completes and the He alth and Status Monitor page appears. If you wish to start over, click No . Adding drives to a RAID group If you have unallocated drives, you can increase the number of drives used by an existing RAID group by adding an unallocated drive to the group. The drives is configu[...]

  • Página 38

    33 ATTO Technology Inc. FastStream SC Installation and Operation Manual Modifying RAID group mapping You may change the LUNs of drives manually or let the ExpressNAV Storage Manager map drives for you. 1 Follow the instructions in Preliminary steps on page 31 and click on the RAID Groups arrow from the Select User Process box. 2 Click on the Modify[...]

  • Página 39

    34 Modifying RAID options You may change Auto-Rebuild and SpeedRead configurations. Refer to Step 14 and Step 17 under Creating a custom setup on page 16 for details on these features. 1 Follow the instructions in Preliminary steps on page 31 and click on the RAID Groups arrow from the Select User Process box. 2 Click on the Modify RAID Options but[...]

  • Página 40

    35 ATTO Technology Inc. FastStream SC Installation and Operation Manual Removing RAID configuration data If you move single drives between devices without erasing the drives, you may want to clean stale RAID configuration data from the drives, permanently removing the drive from the RAID group. Drives must belong to a RAID group now or have once be[...]

  • Página 41

    36[...]

  • Página 42

    37 ATTO Technology Inc. FastStream SC Installation and Operation Manual 8.0 Manage ATTO Devices, Configurations You may save the current configuration of your FastStr eam SC, use a configuration from another FastStream, or change the configurations of other ATTO devices from your current browser using the ExpressNAV Storage Manager. If you have oth[...]

  • Página 43

    38 Saving or restoring a configuration You may save the configuration of the FastStream you are currently using, restore the configuration from a previously-saved configuration for that FastStream, or clone a configuration from another ATTO FastStream using the Save/Restore feature. Note It is best practice to save a copy of your configuration sett[...]

  • Página 44

    39 ATTO Technology Inc. FastStream SC RAID Controller Installation and Operation Manual 9.0 Interface Options The best way to manage, monitor and configure the FastStream is to use the ExpressNAV Storage Manager, a browser-based application included with your FastStream, but you may use a terminal emulation program or Telnet. Using the ExpressNAV S[...]

  • Página 45

    40 Using the serial port To connect to a terminal emulation program to manage the FastStream, use the serial port. 1 Connect a cable from FastStream RS-232 serial port or header to the ser ial (COM) port on a personal comp uter. 2 Start a terminal emulation pr ogram on the personal computer, and use it to connect to the FastStream. For example, if [...]

  • Página 46

    41 ATTO Technology Inc. FastStream SC Installation and Operation Manual 10.0 Update Firmware Firmware updates are available on the ATTO website. C ontact your ATTO sales representative for complete information. The ATTO FastStream has several processors which control the flow of data. The firmware to control these processors can be upgraded in the [...]

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    42[...]

  • Página 48

    i ATTO Technology Inc. FastStream SC Installation and Operation Manual Appendix A CLI Provides an ASCII-based Interface The command line interface (CLI) uses ASCII commands typed while in CLI mode. CA UTION CA UTION Do not use CLI unless you are directed to by an ATTO technician. Changing parameters may cause loss of data and/or disruption to p erf[...]

  • Página 49

    ii CLI error messages The following error messages may be returned by the Command line Interface: ERROR. Invalid Command. Type 'Help' for command list. ERROR. Wrong/Missing Paramet ers Usage: <usage string> ERROR Invalid RAID Group sta te ERROR Invalid Block Device i ndex ERROR Invalid RAID MemberIdx ERROR Maximum number of RAID Gro[...]

  • Página 50

    iii ATTO Technology Inc. FastStream SC Installation and Operation Manual BridgeModel get bridge model BridgeName “ “ set bridgename Omega6 ClearEventLog cleareventlog Date set date 03/03/2003 DefaultInter leave 128 set defaultint erleave 64 DeleteAllMaps deleteallmaps DisplayEventLog displayeventlog DisplayEventLogFilter all all all set di spla[...]

  • Página 51

    iv HSRemove hsremove 3 IdentifyBridge disabled set identifyBrid ge enabled Info info IPAddress 10.0.0.1 get ipadd ress mp1 IPDHCP enabled set ipdhcp mp1 disa bled IPDNSServer set ipdnsserver mp1 172.15.12.123 IPGateway 0.0.0.0 get ipgateway mp1 IPSubnetMask 255.255.0. 0 get ip subnetmask mp1 IsReserved isreserved MaxOpTemp 70 get maxoptemp Metrics [...]

  • Página 52

    v ATTO Technology Inc. FastStream SC Installation and Operation Manual RGErase rgerase g1 RGHaltConversion r ghaltconversion g1 RGHaltErase rghalterase g1 RGHaltInitialization r ghaltinitialization g1 RGHaltRebuild r ghaltrebuild g1 RGMemberAdd rgmemberadd g1 22 RGMemberRemove rgmemberremove g1 22 RGPreFetch 0 rgprefetch g1 2 RGRebuild rgrebuild g1[...]

  • Página 53

    vi CLI command explanations Command Line Interface commands are listed alphabetically with explanations of what they are used for, their defaults and syntax. CA UTION CA UTION Using CLI without contacting an ATTO technician is not recommended because changing parameters may cause lo ss of data and/or disruption to perform ance and reliability of th[...]

  • Página 54

    vii ATTO Technology Inc. FastStream SC Installation and Operation Manual BlockDevClean Removes any RAID configuration data from the block device with the specified block ID. CA UTION CA UTION All RAID group setup information is lost and you lose all RAID group data. BlockDevClean [BlockDevID] BlockDevIdent ify Lights the LED of a disk drive. Use ei[...]

  • Página 55

    viii DriveTest Starts or stops a drive test with the previously-specified configuration and drive list. Drives which are in-use by the test are not available for RAID conf iguration or RAID operations. Only one test can be run at a time. DriveTest [Begin | Cancel] DriveTest Config Configures the next drive test t o perform: initialize (destructive [...]

  • Página 56

    ix ATTO Technology Inc. FastStream SC Installation and Operation Manual EthernetSpeed Regulates the speed of the unit’ s Ethernet port(s). If Auto is enabled, the Ethernet speed is negotiated. When hard set, 10 and 100 speeds are half duplex. Default: auto set EthernetSpeed [mp1] [10 | 100 | auto] SaveConfiguration Restart command required get Et[...]

  • Página 57

    x FCPortLi st Displays a list of available FC ports and their current status. Valid reported status values are Up, Down, Failed, Reserv ed and Disabled. FCPortList FCSCSIBusy Statu s SC 5300 Choose to report busy or queue full when the unit is unable to accept a SCSI command. Default: busy set FCSCSIBusyStatus [busy | qfull] get FCSCSIBusyStatus FC[...]

  • Página 58

    xi ATTO Technology Inc. FastStream SC Installation and Operation Manual IPSubnet Mask Controls the current subnet mask s used by any Ethernet port(s) on the unit. If IPDHCP is enabled, the get command reports t he current IP subnet mask assigned by the network DHCP server. Default: 255.255.0.0 set IPSubnetMask [mp1] [xxx.xxx.xxx.xxx] SaveConfigurat[...]

  • Página 59

    xii PassThrou ghRedis cover SC 5500, 5700 Makes any previously-deleted pass through target devices visible to the host. PassThroughRedisco ver Password Specifies the password used for a ll sessions. Password is case sensitive, 0 to 32 charact ers, and cannot contain spaces. An empty password can be configur ed by pressing the enter key when prompte[...]

  • Página 60

    xiii ATTO Technology Inc. FastStream SC Installation and Operation Manual RGAutoRebuild Uses drives assigned as Hot Spares, then available drives, as automatic replacem ents for any member that fails. Default: disabled set RGAutoRebuild [GroupName |all] [enable d | disabled] get RGAutoRebuild [GroupName |al l] RGCancelAd dStorage Cancels the RGAddS[...]

  • Página 61

    xiv RGPreFetch Specifies the prefetch value for all RAID groups or f or the specified RAID Group. Default: 0 set RGPreFetch [Gro upName | all] [1-6] get RGPreFetch [GroupName | all] RGRebuild SC 5300, 5700 Rebuilds the specified RAID group. If no member is specified, all degraded members are rebuilt. Optional parameter BlockDeviceID allows an avail[...]

  • Página 62

    xv ATTO Technology Inc. FastStream SC Installation and Operation Manual RMStatus Displays the status of all RAID members within the specified RAID group or a particular RAID me mber if specified within the specified RAID group. RMStatus [GroupName] <MemberIndex> Route SC 5300 Assigns a host protocol address to a target destination device. Mor[...]

  • Página 63

    xvi SCSIPortList SC 5300 Lists the status of all available SCSI ports. SCSIPortList SCSIPortReset SC 5300 Resets the specified SCSI bus. SCSIPortReset [sb] SCSIPortResetOnStartup SC 5300 Controls whether the specified SC SI bus is reset each time the unit is powered up. Default: enabled set SCSIPortResetOnStartup [sb] [enable d | disabled] get SCSI[...]

  • Página 64

    xvii ATTO Technology Inc. FastStream SC Installation and Operation Manual SESDiskFailureAlarm SC 5500, SC 5700 Activates an audible alarm when t he appliance determines that a RAID member disk drive has failed. The enclosure which contains the failed disk drive creates the sound, other enclosures are unaffected. Default: disable d set SESDiskFailur[...]

  • Página 65

    xviii TailEven tLog Displays new events to the terminal. Type quit t hen press ENTER t o exit tail mode. TailEventLog Tempera ture Displays the current internal operat ing temperature of this unit in degrees Celsius. get Temperature Time Controls or displays the current time as clocked by the unit in 24 hour format. set Time [HH: MM: SS] get Time T[...]

  • Página 66

    xix ATTO Technology Inc. FastStream SC Installation and Operation Manual Appendix B Design RAID Groups The ATTO FastStream provides instant hardware data protection and intelligence to existing storage independent of the storage type. CA UTION CA UTION RAID improves data accessibility and reliability during normal operations, however, you still nee[...]

  • Página 67

    xx RAID Level 0: stripi ng, no redundancy RAID Level 0 (striping) is based on the fact that increased performance can be achieved by simultaneously accessing data across multiple drives, increasing data transfer rates while reducing average access time by overlapping drive seeks. Drives are accessed alternately, as if stacked one on top of the othe[...]

  • Página 68

    xxi ATTO Technology Inc. FastStream SC Installation and Operation Manual RAID Level 1+0: striping, mirror spans two drives RAID Level 1+0 increases data transfer rates while ensuring security by writing the exact same data simultaneously to two or more different drives. RAID Level 1+0 is used in applications requiring high performance and redundanc[...]

  • Página 69

    xxii RAID Level 6: striping, two parity blocks distributed among drives RAID Level 6 increases reliability for mission critical applications by striping both data and dual parity across multiple drives, writing data and parity blocks across all the drives in a RAID group. RAID 6 provides can tolerate failure of two drives and provides redundancy du[...]

  • Página 70

    xxiii ATTO Technology Inc. FastStream SC Installation and Operation Manual Appendix C SCSI Cabling Additional information to physically connect ports to devices and to your SAN. SCSI cables and devices must be chosen to maximize performance and minimize the electrical noise from the high-speed data transfers available with the SCSI protocol. Cablin[...]

  • Página 71

    xxiv Exhibit A-2 Various types of SCSI operate at differe nt speeds and require differe nt bus lengths to support a certain number of devices. STA terms Bus speed MB/sec. max. Bus width bits Max. bus lengths in meters Max. devi ce support Single- ended Differential LVD Fast SCSI 10 8 3 25 NA 8 Fast/WIDE SCSI 20 16 3 25 NA 16 UltraSCSI 20 8 1.5 25 N[...]

  • Página 72

    xxv ATTO Technology Inc. FastStream SC Installation and Operation Manual Appendix D Standards and Compliances The equipment described in this manual generates and uses radio frequency energy. If this equipment is not used in strict accordance with the manufacturer's instruction, it can cause interference with radio and television reception. Se[...]

  • Página 73

    xxvi Appendix E Warranty Manufacturer limited warra nty Manufacturer warrants to the original purchaser of this product that it is free from defects in material and workmanship as described in the ATTO Technology website, www.attotech.com . Manufacturer liability shall be limited to replacing or repairing, at its option, any defective product. Ther[...]