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Accusys ACS-8910 User Manual

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For Europe
This drive is in conformity with the EMC directive.
Federal Communications Commission (FCC) Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules.
Those limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
Reorient or relocate the receiving antennas.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circlet different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
Warning:
A shielded-type power cord is required in order to meet FCC emission limits and also to prevent
interference to the nearby radio and television reception. It is essential that only the supplied power cord
be used.
Use only shielded cables to connect I/O devices to this equipment.
You are cautioned that changes or modifications not expressly approved by the party responsible for
compliance could void your authority to operate the equipment.
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Summary of Contents for Accusys ACS-8910

  • Page 1 For Europe This drive is in conformity with the EMC directive. Federal Communications Commission (FCC) Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. Those limits are designed to provide reasonable protection against harmful interference in a residential installation.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. INTRODUCTION ..............5 Package Contents ................5 Features..................5 2. ABOUT RAID..........……………….6 Levels of RAID ................6 2.1.1 Disk Spanning (None RAID) ............6 2.1.2 Disk Striping (RAID 0 )..............7 2.1.3 Mirroring ( RAID 1 )..............8 2.1.4 Striping with Mirroring (RAID 0+1) ..........9 2.1.5 Striping with Dedicated Parity Disk (RAID 3) ......10 2.1.6 Striping with non-Dedicated Parity (RAID 5) ......
  • Page 3 4.1.7 Dual Host Configuration for Redundant Server & HA software 41 4.1.8 Example for Redundant Server and HA software Configuration43 Expand the RAID capacity............44 The ACS-8910 Configuration Menu........45 4.3.1 Quick Setup menu................45 4.3.2 RAID Params menu ..............46 4.3.3 SCSI Params menu..............48 4.3.4 RS232 Params menu ..............51...
  • Page 4 Accusys-Germany ................71 Accusys-Korea ..................71 APPENDIX A - ERROR MESSAGES ........72 APPENDIX B : TECHNICAL SPECIFICATIONS ....75 APPENDIX C : SCSI CABLE SPECIFICATIONS ....76 APPENDIX D : GLOSSARY ........... 77 APPENDIX E : RECORD THE ACS-8910 SETTING ..79...

  • Page 5: Introduction

    Thank you for purchasing the ACS-8910 --a cost effective, high performance RAID solution. The ACS-8910 is designed to meet today demand of higher storage solutions for the emerging needs of databases, e-mail, web servers and imaging systems maximizing data protection and exceptional performance in a storage controller.

  • Page 6: About Raid

    W: Low parity The ACS-8910 supports RAID Levels 0, 1, (0+1), (3) and 5. Depending on the application usage, different RAID levels perform different functions and fault tolerance. The following is a brief explanation of each RAID level. Be sure which RAID level is best suited for your application before configuring the ACS-8910.

  • Page 7: Disk Striping (Raid 0 )

    2.1.2 Disk Striping (RAID 0 ) RAID 0 Minimum Disks required Capacity Redundancy Striping refers to the storing of data across multiple drives in a drive group. If there are three drives in a drive group then the subsequent data will be stored across all three drives. This creates a very high performance virtual disk with the capacity equal to the combined capacity of the installed disks.

  • Page 8: Mirroring ( Raid 1 )

    2.1.3 Mirroring ( RAID 1 ) RAID 1 Disks required Capacity Redundancy RAID 1 mirrors the stored data from one to another. RAID 1 can only be performed with two hard drives. For instance, if there are more than two hard drives, RAID (0+1) will be performed automatically.

  • Page 9: Striping With Mirroring (Raid 0+1)

    2.1.4 Striping with Mirroring (RAID 0+1) RAID (0+1) Minimum Disks required Capacity Redundancy RAID (0+1) consists of RAID 0 and RAID 1-Striping and Mirroring. RAID (0+1) allows multiple simultaneous drive failures because of the full redundancy of the hard drives. Also, if there are more than two hard drives assigned to perform RAID 1, RAID (0+1) will be performed automatically.

  • Page 10: Striping With Dedicated Parity Disk (Raid 3)

    2.1.5 Striping with Dedicated Parity Disk (RAID 3) RAID 3 Minimum Disks required Capacity Redundancy RAID 3 performs Block Striping with Dedicated Parity. One drive member is dedicated to storing the parity data. When a single drive fails, the controller can recover/regenerate the lost data from the dedicated parity drive.

  • Page 11: Striping With Non-Dedicated Parity (Raid 5)

    2.1.6 Striping with non-Dedicated Parity (RAID 5) RAID 5 Minimum Disks required Capacity Redundancy Data is stripped across (such as RAID 0) all the drives with distributed parity (redundant data calculated by XOR logic used to rebuild the lost data). RAID Level 5 offers very high data redundancy, availability and performance.

  • Page 12: Characteristics Of Raid

    Hot Spare allows for the automatic replacement of a faulty drive without requiring intervention. When a disk fails, the ACS-8910 will automatically replace the faulty drive with the configured hot spare disk. Also, there is no need to turn off the power while replacing the defective disk.

  • Page 13: Automatic Drive Rebuild

    2.2.3 Automatic Drive Rebuild Automatic Rebuild One member drive fails in logical drive Automatic Any Global Rebuild using Spare Drive the Global assigned to Spare Drive this logical Wait for new drive to automatic rebuild When one of the drive fails, the controller will check if there is any local spare drive assigned to this logical drive first;...

  • Page 14: Hardware Installation

    Monitor Utility is invoked from the remote terminal. In Configuration Mode, user is able to modify the settings of the ACS-8910 and perform different functions to the controller. It is important to note that when running Configuration Mode, the ACS-8910 should be off-line and cannot be accessed by any application.

  • Page 15: Operation Mode

    3.1.1.3 Operation Mode The LCD Displayed Panel displays the current status of the ACS-8910. A typical display is shown as following: ACS-8910 OOOOOOOS Press [ ▼ Installed Memory Press [ ▼ RAID Capacity GBytes Press [ ▼ RAID Capacity GBytes Press [ ▼...
  • Page 16 SCSI LUN Field Description ACS-8910 The ACS-8910 model number. The 8 disks channel status. The first left O is O O O O O O O S channel 1. You can press the [▼] button to view the next page.

  • Page 17: The Controller Box

    When the Enter button is pressed in operation mode, the ACS-8910 will enter to Configuration Mode. Note: In Configuration Mode, the ACS-8910 automatically returns to the Operation Mode when it remains inactive for 3 minutes. 3.2 The Controller Box The controller box includes RAID controller board, control panel interface, box cover, screw mount and rear connector board.

  • Page 18: The Control Panel

    3.3 The Control Panel The ACS-8910 Control Panel consists of a two line by the 16 character LCD display, 4 push button switches and 6 LED indicators. It provides a way to configure and monitor the operation of the ACS-8910.

  • Page 19: Control Panel Key Definitions

    3.3.1 Control Panel Key Definitions A menu of configuration options shows on the LCD Display Panel. By pressing the ▲, ▼, ENT and ESC buttons, you can traverse the various options from the menu and configure the desired parameters. These buttons perform the following functions: (▲) repeatedly press up arrow key until the required item is displayed (▼) repeatedly press down arrow key until the required item is displayed ENT: select a menu item, open a sub-menu, and select a value.

  • Page 20: Memory Module

    3.4 Memory Module The ACS-8910 controller requires a minimum of 32 MB DRAM SO DIMM (Small Outline, Dual Inline Memory Modules) installed in the socket on the controller board in order to operate. The controller box is normally delivered without any DRAM installed.

  • Page 21: Installing A So Dimm Module

    3.4.1 Installing SO DIMM Module Please follow below instructions to install SO-DIMM module. Power off the system and disconnect the power connector. Locate the SO DIMM socket on the controller board. To install a memory card, hold the memory card with the edge connector side towards the slot.

  • Page 22: Installing Cables

    3.5 Installing Cables There are three kinds of cables attached in the package of ACS-8910. They are “80 Pins IDE cables”, “Extension Cable (3-in-1)” and “10-pin to 9-pin D-sub male Interface Cable”. Follow the instructions to complete the cable installation as described below.

  • Page 23: Extension Cable (3-In-1)

    3.5.2 Extension Cable (3-in-1) The rear side of the ACS-8910 controller box has a connector for connecting an extension cable. This extension cable splits into three cables, each used to offer connectivity to a specific feature. Extension Cable Connection for a UPS and FAN device...

  • Page 24: 10-Pin To 9-Pin D-Sub Male Interface Cable

    3.5.3 10-pin to 9-pin D-sub male Interface Cable The ACS-8910 controller can be configured via PC running a VT-100 or ANSI terminal-emulation. In order to connect to PC, you need to connect an additional interface cable to the extension cable, which converts the RS-232 signal of the 10-pin header connector into a 9-pin D-sub male connector.

  • Page 25: Daughter-Board (Optional)

    3.6 Daughter-Board (optional) Additional features that will become available through adding the optional proprietary daughter-board to the ACS-9900: 3.6.1 Daughter-Board Specifications Single Fiber Channel and the bandwidth up to 2Gbits Dual Fiber Channel and the bandwidth up to 2Gbits Single SCSI Channel and the bandwidth up to 160MB Dual SCSI Channel and the bandwidth up to 160MB …...

  • Page 26: Configuring Acs-8910

    This section provides instructions on how to setup a RAID configuration by using the front control panel of the ACS-8910. Alternatively, the RAID configuration can be set up from the remote terminal or the terminal emulation program that can be found on your computer. Refer to section 6 Monitor Utility for more details on RAID configuration by using the RS-232 port and monitor utility.

  • Page 27: Single Host Configuration

    11. Repeatedly press the [▼] button until the “21 Set SCSI ID” menu is displayed, then press the [ENT] button. 12. Press the [▼] button to select a SCSI ID for ACS-8910, then press the [ENT] button. NOTE: The default setting SCSI ID is 0.
  • Page 28 14. Press the [▼] buttons to enable or disable the SCSI termination for the ACS-8910, then press the [ENT] button. NOTE: If the ACS-8910 is the only SCSI device on the bus or is at the end of a daisy chain, the termination should be enabled.
  • Page 29 23. Repeatedly press the [▼] button until the “53 Restart” menu is displayed, then press the [ENT] button. 24. Repeatedly press the [▼] button until the “Yes” option is displayed, then press the [ENT] button. NOTE: This will automatically restart the ACS-8910.

  • Page 30: Single Host Configuration For Logical Units

    4.1.3 Single Host Configuration for Logical Units The ACS-8910 RAID controller can support up to 8 logical units. A RAID array can be divided into multiple logical units. A logical unit is that portion of a disk array seen by the host system as a single logical device.
  • Page 31 13. Repeatedly press the [▼] button until the “26 LUN map” menu is displayed, then press the [ENT] button. 14. Repeatedly press the [▼] button until the “2161 LUN 0” menu is displayed, then press the [ENT] button. 15. Follow the next table to setup “LUN” menu. LUN 0 Slice 0 LUN 1...
  • Page 32 23. Repeatedly press the [▼] button until the sub-menu “62 Init R5/R3” option is displayed, then press the [ENT] button. 24. Repeatedly press the [▼] button until the ”START” option is displayed, then press the [ENT] button. NOTE: The ACS-8910 is now configured completely for logical units.

  • Page 33: Example For Logical Units Of Single Host Configuration

    Spare Disk Partition 2 8 GB RAID Level Partition 3 7 GB SCSI ID Partition 4 5 GB ACS-8910 Configuration: Step Menu Setting 11 Re-conf RAID 12 RAID Level 13 Disk Number 21 Set SCSI ID 51 Update NVRAM 53 Restart...
  • Page 34 Partition 2 8 GB / SCSI ID 4 RAID Level Partition 3 7 GB / SCSI ID 1 Partition 4 5 GB / SCSI ID 0 ACS-8910 Configuration: Step Menu Setting 11 Reconf RAID 12 RAID Level 13 Disk Number...

  • Page 35: Dual Host Configuration

    4.1.5 Dual Host Configuration Note: This Section is only performed when the daughter board is connected to the ACS-8910 controller. 1. Turn on the ACS-8910 from power supply switch. 2. Press the [ENT] button to display the “Main Menu” menu.
  • Page 36 NOTE: If the ACS-8910 is the only SCSI device on the bus or is at the end of a daisy chain the termination should be enabled. If the ACS-8910 is in the middle of a daisy chain the termination should be disabled.
  • Page 37 25. Repeatedly press the [▼] button until the ”Yes” option is displayed, then press the [ENT] button. NOTE: This will automatically restart the ACS-8910. 26. Press the [ENT] button to open the “6 RAID Funcs” menu. 27. Press the [▼] button until the sub-menu “62 Init R5/R3”...
  • Page 38 34. Press the [▼] button to select from “142 Slice 1(MB)” to “148 Slice7(MB)”, then repeat the steps 8 and 9. 35. Press the [ESC] button to return to the “Main Menu” menu. 36. Repeatedly press the [▼] button until the “21 Primary SCSI”...
  • Page 39 49. Repeatedly press the [▼] button until the sub-menu “62 Init R5/R3” option is displayed, then press [ENT] button. 50. Repeatedly press the [▼] button until the ”START” option is displayed, then press the [ENT] button. NOTE: The ACS-8910 is now configured the Dual Host completely.

  • Page 40: Example For Dual Host Configuration

    On-line Disk Host 2 SCSI ID Spare Disk Partition for Host 1 25 GB RAID Level Partition for Host 2 15 GB ACS-8910 Configuration: Step Menu Setting 11 Reconf RAID 12 RAID Level 13 Disk Number 211 Set Primary SCSI ID...

  • Page 41: Dual Host Configuration For Redundant Server & Ha Software

    4.1.7 Dual Host Configuration for Redundant Server & HA software 1. Please complete the Dual Host Configuration steps first. 2. Press the [Esc] button to display the ”Main Menu” menu. 3. Repeatedly press the [▼] button until the “2 SCSI Params” menu is displayed, then press the [ENT] button.
  • Page 42 14. Repeatedly press the [▼] button until the “Yes” option is displayed, then press the [ENT] button. NOTE: 1.This will automatically restart the ACS-8910 2. The ACS-8910 is now configured the Dual Host for Redundant Server & HA software completely.

  • Page 43: Example For Redundant Server And Ha Software Configuration43

    Dual Host for Redundant Server and HA software Setup : Disk 8 GB x 6 On-line Disk Spare Disk RAID Level Host 1 SCSI ID Host 2 SCSI ID ACS-8910 Configuration: Step Menu Setting 11 Reconf RAID 12 RAID Level 13 Disk Number 211 Set Primary SCSI ID...

  • Page 44: Expand The Raid Capacity

    4.2 Expand the RAID capacity The ACS-8910 provides the “ Capacity expansion” function, which allows to expand current RAID capacity by adding a new disk into your RAID subsystem. NOTE: ACS-8910 allows one disk fail when you execute this expansion function.

  • Page 45: The Acs-8910 Configuration Menu

    4.3 The ACS-8910 Configuration Menu The ACS-8910 should be disconnected from the host system when running the Configuration Menu. The Main Menu consists of 6 categories. Each category is used to configure a different part of the ACS-8910 controller. The following shows the main menu categories. Each category has sub-menu and options.

  • Page 46: Raid Params Menu

    4.3.2 RAID Params menu The RAID Params menu configures the ACS-8910 for the different supported RAID levels. To avoid accidentally erasing an existing configuration you specified, using the “11 Re-Conf RAID” option, if you want to change the configuration. NOTE: Any changes made to 11 Re-Conf RAID, 12 RAID Level, 13 Disk Number, 14 Slice and 15 Stripe will cause data on the drives to be permanently erased.
  • Page 47 Sub-menu Sub options Settings Default setting 17 DMA Mode 171 Disk 1 0, 1, 2, 3, 4, 5 172 Disk 2 0, 1, 2, 3, 4, 5 0, 1, 2, 3, 4, 5 173 Disk 3 174 Disk 4 0, 1, 2, 3, 4, 5 175 Disk 5 0, 1, 2, 3, 4, 5 0, 1, 2, 3, 4, 5...

  • Page 48: Scsi Params Menu

    SCSI adapter or other SCSI devices daisy chained with the ACS-8910. Command Tag Queuing is a function that allows a SCSI device to handle multiple requests without having to serialize the operations. This frees the disks to process requests in whatever order is convenient, instead of blindly processing and acknowledging each disk operation before starting the next.
  • Page 49 Secondary 221 Set SCSI ID 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,Multiple SCSI Description: Specify the Secondary SCSI ID for the ACS-8910. Sub-menu option Sub-menu option Settings Default setting Enable, Disable Enable...
  • Page 50 Sub-menu Sub-menu option Sub-menu Settings Default option option setting 226 LUN map 2261 LUN 0 Disable, Slice 0 Slice 0 -Slice 7 2262 LUN 1 Disable, Slice 1 Slice 0 -Slice 7 2263 LUN 2 Disable, Slice 2 Slice 0 -Slice 7 Disable, Slice 3 2264 LUN 3...

  • Page 51: Rs232 Params Menu

    The RS232 Params menu configures the external ports of the ACS-8910. The ACS-8910 can communicate with remote terminal and modem. The ACS-8910 and the remote terminal must be set to the same communication settings (baud rate, stop bit, data bit, and parity).

  • Page 52: System Params Menu

    4.3.5 System Params menu The System Params menu configures the internal operation of the ACS-8910. To avoid having the configuration altered by unauthorized personnel you can enable the password function from Configuration Mode. Also, by selecting the “Pager Info”, “FAX Info” and “Company Info” options, you will be altered when a disk failure occurs.
  • Page 53 Sub-menu options Sub options Settings Default setting 43 FAX Info 431 FAX Disable, Enable Disable Description: Enable / Disable Fax function. 432 FAX Class 1, 2 Description: Setup your modem machine supports class 1 or 2. Up to 16 numbers 433 FAX1 No.

  • Page 54: Nvram Menu

    4.3.6 NVRAM menu The NVRAM menu options control the configuration information. When using this menu option the ACS-8910 required to be off-line. Any change made in this group will cause data on the drives to be permanently erased. Once a configuration change has been made the NVRAM (where the settings are stored) must be updated.

  • Page 55: Raid Funcs Menu

    4.3.7. RAID Funcs menu The RAID Funcs menu allows different functions to be performed on the ACS-8910. NOTE: Any changes made to 61 Format Disk, 62 Init RAID 5, 63 R5 Check will cause data permanently erased on the disks.
  • Page 56 Disk 15 None Disk 16 None Description: Use this option to add a disk to an existing configuration. This is only valid if not all disks were configured then a disk can be added without having to take the ACS-8910 off-line.
  • Page 57 No, Yes 697 7 Disks No, Yes Description: To expand moer capacity Sub-menu options Settings Default setting 6A Update ROM None None Description: Update the programmable firmware of the ACS-8910. This option should only be executed when the ACS-8910 is off-line.

  • Page 58: Page And Fax Notification

    (XON/XOFF) 5.1.1 Modem Access Attach the external modem to the Modem port located on the back of the ACS-8910. Attach the modem cable (provided by the modem manufacturer) from the Modem port located on the back of the ACS-8910 to the connector at the back of the modem.

  • Page 59: Configuring Page And Fax Notification

    Refer to section 5.2.1and 5.2.2 for instructions on how to configure and use the front control panel. NOTE: Before running these procedures, make sure the ACS-8910 is off-line from the host computer.

  • Page 60: Paging Notification

    5.2.1 Paging Notification Press the [ENT] button to display the ”Main Menu” menu. Press the [▼] button to open the “4 System Params” menu and press the [ENT] key. Repeatedly press the [▼] button until the “42 Pager Info” menu is displayed, then press the [ENT] button.

  • Page 61: Fax Notification

    Repeat the step 7 and 13, the secondary pager and pin numbers. Press the [Esc] key to return to the ”Main Menu” menu. To save the current configuration continue to the next step. Repeatedly press the [▼] button until the “5 NVRAM” menu is displayed, then press the [ENT] key.
  • Page 62 5.2.2 FAX Notification Press the [ENT] button to display the ”Main Menu” menu. Repeatedly press the [▼]button until the “4 System Params” menu is displayed, then press the [ENT] key. Repeatedly press the [▼] button until the “43 FAX Info” menu is displayed, then press the [ENT] key.
  • Page 63 Repeatedly press the [▼] button until the “5 NVRAM” menu is displayed, then press the [ENT] key. Repeatedly press the [▼] button until the “51 Update NVRAM” menu is displayed, then press the [ENT] key. Repeatedly press the [ ▼ ] button until the ”Yes” option is displayed, then press the [ENT] key.

  • Page 64: Monitor Utility

    6. Monitor Utility The ACS-8910 control panel allows for exploration of all configurable features. However, the small form factor of the control panel only allows a small LCD display output. A limited amount of information can be displayed at a given time on the LCD display.

  • Page 65: Connecting Terminals

    6.2 Connecting Terminals The monitor utility may be accessed via the RS-232 connector located on the back of the ACS-8910. The following sections describe how to configure the ACS-8910 to access the monitor utility via the RS-232 port. Communication Ports Settings 6.2.1...

  • Page 66: Using The Monitor Utility

    “Monitor Utility”. The ACS-8910 “Monitor Utility” screen will appear as below. The “model number” and the “firmware version” of the ACS-8910 show on the top of the screen. And the “LCD” window appears on the left of the screen. To configure the system by selecting the items that show on the “main menu”...

  • Page 67: Updating The Firmware

    6.3.2 Updating the Firmware The embedded firmware of the ACS-8910 can be updated through the RS-232 port using a terminal or PC in terminal emulation mode. When updating the firmware, be sure the ACS-8910 is disconnected to the system to avoid any data lost.

  • Page 68: Troubleshooting

    This will select a SCSI ID for the ACS-8910. Problem: The ACS-8910 is identified at all SCSI ID. Possible Cause: The SCSI ID set for the ACS-8910 is identical to the reserved SCSI ID used by the SCSI adapter in your computer system.
  • Page 69 ACS-8910 model. Solution: Re-sit the memory module in to the socket and retry. If it continues to fail try moving it to the other memory socket. Make sure the correct memory type is being installed. The ACS-8910 supports 144-pin SO-DIMM SDRAM.

  • Page 70: Contact Us

    9. Contact Us Accusys-USA E-mail: support@accusysUSA.com; sales@accusysUSA.com Toll free number: 800-xxxxxxx Accusys-Taiwan E-mail: support@accusys.com.tw; sales@accusys.com.tw Tel: 886-3-575-0668 Accusys-Europe E-mail: sales@accusys.co.uk Tel: 44-1293-400-521 Accusys-Germany E-mail: sales@accusys.de Tel: +49-89-374-0760 Accusys-Korea E-mail: sales@accusys.co.kr Tel: +82-2-6245-9050 Specifications are subject to change without notice!

  • Page 71: Appendix A - Error Messages

    APPENDIX A - Error Messages The following is a listing of the error messages generated by the ACS-8910 and their meaning. Legend: x= Number of disk channel Total number of disks detected by the controller Number of disks specified in 1 RAID Params, 3 Disk Number menu option.
  • Page 72 IDE_ISR: wait IDE interface is waiting for an interrupt from a disk. Master Int IDE_ISR: wait IDE interface is waiting for disk to be free. IDE Busy off IDE_ISR: status ? IDE disk drive current status (?) IDE_ISR: wait To wait for disk drive to turn off DRQ in Interrupt phase. IDE_ISR: Indicates DRQ is not free in Interrupt phase.
  • Page 73 unable to be used. No Configuration The ProRAID is currently not configured for any RAID level. Config ERROR The current configuration failed to be verified. Possible fault disk or disk off-line. Not enough Disk Number of disks required for the RAID Level is missing. Possible faulty disks or disks off-line.

  • Page 74: Appendix B : Technical Specifications

    APPENDIX B : Technical Specifications ACS-8910 Disk Array Controller Operation System OS independent and Transparent Intel 80303 64-bit RISC microprocessor SCSI I/O Processor LSI 53C1010 Ultra160 RAID Level 0,1,3,5,0+1 Cache Memory One 144-pin SO-DIMM , 32~ 512 MB Battery Backup...

  • Page 75: Appendix C : Scsi Cable Specifications

    APPENDIX C : SCSI Cable Specifications SCSI Standards, Cable Length and corresponding Maximum Possible Drive Connections Single-Ended Differential Ultra2 Maximum Drives SCSI-1 25 m SCSI-2 25 m Wide SCSI-2 25 m Ultra SCSI-2 1.5 m 25 m Ultra SCSI-2 Ultra Wide SCSI-2 - 25 m Ultra Wide SCSI-2 1.5 m Ultra Wide SCSI-2 3 m...

  • Page 76: Appendix D : Glossary

    APPENDIX D : Glossary Array Management Software, Firmware The body of software that provides common control and management for a disk array. Array Management Software most often executes in a disk controller or intelligent host bus adapter, but may also execute in a host computer. When it executes in a disk controller or adapter, Array Management Software is often referred to as Firmware.
  • Page 77 Mirroring A form of RAID in which Array Management Software maintains two or more identical copies of data on separate disks. MTBF An abbreviation for Mean Time Between Failure, the average time from start of use to failure in a large population of identical components or devices. RAID A Redundant Array of Independent Disks (RAID or RAID array) is a disk array in which part of the storage capacity is used to store redundant information about user data stored on the...

  • Page 78: Appendix E : Record The Acs-8910 Setting

    APPENDIX E : Record the ACS-8910 Setting F.1 View Drive Information Channel Brand Model Capacity...
  • Page 79 F.2 RAID Parameters Information □ 0 □ 1 □ 3 □ 5 □ 0+1 RAID Level □1 □2 □3 □4 □5 □6 □7 □8 Disk Number □ No □ Yes Channel _____________ Spare Disk Slice 0 __________ GB Slice 1 __________ GB Slice 2 __________ GB...
  • Page 80 F.3 SCSI Parameters Information □ 0 □ 1 □ 2 □ 3 □ 4 □ 5 □ 6 □ 7 Primary SCSI lD □ Enable □ Disable Termination □ Enable □ Disable TAG Queuing □ Ultra2 □ Ultra160 Speed □ Enable □ Disable Ultra □...
  • Page 81 □ 0 □ 1 □ 2 □ 3 □ 4 □ 5 □ 6 □ 7 Secondary SCSI lD □ Enable □ Disable Termination □ Enable □ Disable TAG Queuing □ Ultra2 □ Ultra160 Speed □ Enable □ Disable Ultra □...
  • Page 82 F.4 RS-232 Params Information F.4.1 Modem Parameters Information □ 2400 □4800 □9600 □14400 □19200 Baud Rate □28800 □38400 □57600 □115200 □ 1 □ 2 Stop Bit □ 1 □ 2 Data Bit □ None □ Odd □ Even Parity F.4.2 Terminal Parameters Information □...
  • Page 83 F.5 System Parameters Information F.5.1 Password Information □ Enable □ Disable Passwd Check Set Password Default :00000000 : ______________ F.5.2 Pager Information □ Enable □ Disable Paging Pager 1 No Tel No. : _____________________ Pin No. : _____________________ Code _________________________ Pager 2 No Tel No.
  • Page 84 String 2 _________________________ F.5.5 Modem Information Modem Initialize String Default : AT&D0&K4E0 ( Hays ) Brand _________________________ Initialize String _________________________ F.6 View ACS-8910 Controller Information □32MB □64MB □128MB Cache Size Capacity __________ GB Firmware version _____________ Serial Number ___________________________ RAID Member...

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