Adaptec DuraStor 7220SS User Manual
  1. Manuals
  2. Brands
  3. Adaptec Manuals
  4. Software
  5. DuraStor 7220SS
  6. User manual
Adaptec DuraStor 7220SS User Manual

Adaptec DuraStor 7220SS User Manual

Adaptec durastor 7220ss: user guide
Hide thumbs Also See for DuraStor 7220SS:
Table of Contents

Advertisement

Quick Links

Download this manual See also: User Manual, Installer and User Manual
Adaptec Disk Array
Administrator
User's Guide

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DuraStor 7220SS and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Adaptec DuraStor 7220SS

Summary of Contents for Adaptec DuraStor 7220SS

  • Page 1 Adaptec Disk Array Administrator User’s Guide...
  • Page 2 Copyright © 2001 Adaptec, Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written consent of Adaptec, Inc., 691 South Milpitas Blvd., Milpitas, CA 95035.

  • Page 3: Table Of Contents

    Getting Started About This Guide 1-1 Getting Online Help 1-2 Accessing Adaptec Disk Array Administrator 1-2 The Adaptec Disk Array Administrator Screen 1-4 Navigating Adaptec Disk Array Administrator 1-4 Changing the Screen Display 1-5 Creating and Managing Arrays and Partitions...
  • Page 4 Monitoring System Status Displaying the Event Log 3-1 Viewing the Most Recent Event 3-3 Viewing One Event at a Time 3-3 Viewing a Whole Screen of Events 3-3 Capturing the Event Log File 3-4 Displaying Hardware and Configuration Information 3-4 Displaying Overall Statistics 3-7 Resetting Overall Statistics 3-9 Managing Spares...
  • Page 5 Testing a Disk Drive 6-7 Managing SAF-TE Enclosures 6-8 Changing the SEP LUN 6-8 Changing the Additional SEP Settings 6-9 Troubleshooting Adaptec Technical Support 7-1 Input Problems 7-2 Terminal Emulator and COM Port Problems 7-2 Array Problems 7-3 Host SCSI Channel Problems 7-4...
  • Page 6 Warning and Error Events 7-8 Warnings 7-8 Errors 7-9 Using the Loader Diagnostics Menu 7-10 Using the Loader Utility Menu 7-11 Understanding SCSI Errors 7-11 Disk Errors 7-11 Disk Channel Errors 7-13 Voltage and Temperature Errors and Warnings 7-15 Storage Concepts Devices A-1 Controllers A-2 Storage Systems A-2...

  • Page 7: Getting Started

    Operating System (OS). You can use Adaptec Disk Array Administrator to create and reconfigure arrays, initialize disk drives, manage spares, monitor the status of your storage devices and more. You can also use it to access newly-created arrays immediately after creating them.

  • Page 8: Getting Online Help

    Accessing Adaptec Disk Array Administrator You can access Adaptec Disk Array Administrator using the RS-232 serial port on the DuraStor 6200S RAID appliance. Use the port associated with the controller you wish to access. Refer to the DuraStor Installation and User’s Guide for more information.
  • Page 9 COM Port Problems on page 7-2 DuraStor 6200S RAID controller can auto-detect the baud rate. Press CTRL-R. The initial Adaptec Disk Array Administrator screen appears. Press Enter. The System Menu screen appears. You can now perform all of the functions described in the following chapters.

  • Page 10: The Adaptec Disk Array Administrator Screen

    (Place-holder screenshot - awaiting updated file) Figure 1-1 The System Menu Screen Navigating Adaptec Disk Array Administrator Use your computer keyboard to navigate Adaptec Disk Array Administrator. Table 1-3 selection methods.

  • Page 11: Changing The Screen Display

    Note: After 4 minutes of inactivity, Adaptec Disk Array Administrator times out and returns to the System Menu screen. Changing the Screen Display After you have accessed Adaptec Disk Array Administrator, you can change the screen display using a combination of keystrokes, as shown on the System Menu.

  • Page 12: Creating And Managing Arrays And Partitions

    Creating and Managing Arrays and Partitions In This Chapter Creating Arrays Managing Arrays Managing Partitions Creating Arrays You can create an array at any time. drive requirements for each RAID level. Table 2-1 Disk Drive Requirements by RAID Level Minimum Number of RAID Level Volume Set Mirrored...

  • Page 13: Creating A Single-Partition Array

    Note: Before you create more than one array, you must be sure that your host OS supports multiple Logical Unit Numbers (LUNs). Most OSs do, or can be enabled to. If yours does not, the host sees only one array at LUN 0. Refer to Setting the Host System HBA to Multiple-LUN in the DuraStor Installation and User’s Guide.
  • Page 14 If you want to create a multiple-partition array, see Multiple-Partition Array on page 3 Select Yes to create a single-partition array and press Enter. The LUN prompt appears. 4 Type the LUN for the array and press Enter. The LUN that appears is the suggested default LUN assignment. If the letters OV appear before a LUN, it indicates that the selection overlaps with a soft LUN, probably the controller or SAF-TE Environmental Processor (SEP) LUN.
  • Page 15 If you selected any array type other than RAID 50, the Number of Drives prompt appears. 6 Type the number of disk drives (excluding spares) you want in the array and press Enter. The Select Drive(s) menu appears. If you are using active-active mode, the Select Drive(s) menu includes all available disk drives (those that are not members of an array and are not assigned as dedicated or pool spares) on both controllers.
  • Page 16 9 Select a disk drive to use as a dedicated spare and press Enter. Only available disk drives (those that are not members of an array and are not assigned as dedicated or pool spares) display. You can delete a dedicated spare from the array at any time. For more information, see If the array you are creating is a RAID 3, RAID 4, RAID 5, or RAID 50, the Chunk Size menu appears.

  • Page 17: Creating A Multiple-Partition Array

    Note: Most OSs, such as Windows NT 4.0, require you to reboot the host system to see the new array. NetWare v3.12 and later can recognize new devices if you type the command SCAN FOR NEW DEVICES at the console prompt.
  • Page 18 Note: A RAID 10 array is automatically created when there are more than two disk drives in a mirrored array. See Appendix A, Storage – If you selected RAID 50 as the array type, the Select RAID50 Array Size menu appears with all possible configurations for array and disk drive combinations.
  • Page 19 7 Type the number of spares you want to add and press Enter. This creates dedicated spares that can only be used by this array. A dedicated spare disk drive will not be available for any other use. For more information about spares, see Managing Spares.

  • Page 20: Free Space

    SCAN FOR NEW DEVICES at the console prompt. Other OSs might have similar features. Managing Arrays Adaptec Disk Array Administrator lets you manage your arrays in several ways. For more information, see Adding a Partition on page 2-9. Viewing Array and Disk Drive Status Information on page 2-11.
  • Page 21 To add a partition: 1 From the System Menu, select Array Menu and press Enter. The Select Array menu appears. 2 Select the multiple-partition array you want and press Enter. That array’s Array menu appears. 3 Select Add a Partition and press Enter. The Select Free Partition menu appears with a list of free partitions.

  • Page 22: Viewing Array And Disk Drive Status Information

    Viewing Array and Disk Drive Status Information You can view array status and disk drive status at any time. Viewing Array Status You can view the following information for any array: State—Online, Offline, Critical, or Fault-tolerant. Serial number—Unique number the controller assigns to each array.
  • Page 23 To view the status of an array: 1 From the System Menu, select Array Menu and press Enter. The Select Array menu appears. 2 Select the array you want and press Enter. That array’s Array menu appears. 3 Select Array Status and press Enter. A window appears showing the status of the array you selected.

  • Page 24: Stopping The Array Initialization Process

    3 Select Drive Status and press Enter. The Display Drives menu appears showing the disk drives that are members of the array and that are assigned as dedicated spares. ↑ ↓ Use the key to scroll through the disk drives. These are the drives that are currently members of the array.
  • Page 25 To verify an array: 1 From the System Menu, select Array Menu and press Enter. The Select Array menu appears. 2 Select the array you want and press Enter. That array’s Array menu appears. 3 Select Verify Function and press Enter. That array’s Verify menu appears.

  • Page 26: Reconstructing An Array

    5 Press Esc to return to the Verify Function menu. Stopping the Verification You can stop the verification process. Normally, you should let the verification finish, although stopping it does not cause any damage to your data. You may wish to stop the verification if you want to improve performance of the controller for another application.

  • Page 27: Expanding Array Capacity

    Expanding Array Capacity You can expand array capacity without stopping I/O activity. You can only expand one array at a time. Note: Expanding an array does not change the size of host OS partitions that reside on the array because the controller is working at the block level, not the file system level, of the OS.
  • Page 28 To expand an array: 1 From the System Menu, select Array Menu and press Enter. The Select Array menu appears. 2 Select the array you want and press Enter. That array’s Array menu appears. 3 Select Expand Function and press Enter. That array’s Expand menu appears.

  • Page 29: Changing An Array Name

    2 Select the array you want and press Enter. That array’s Array menu appears. 3 Select Expand Function and press Enter. That array’s Expand menu appears. 4 Select View Expand Status and press Enter. The Expand Status window appears. 5 Press Esc to return to the Expand Function menu. Changing an Array Name You can change the name of an array.

  • Page 30: Trusting An Array

    controller you change it to. You can no longer see the array on the original controller. Note: When you change the ownership of an array, the LUNs assigned to the array’s partitions become invalid. After changing ownership, you must assign a new LUN to each array partition.
  • Page 31 An array is offline because a disk drive is failing, you have no data backup, and you want to try to recover the data from the array. (Only a non-fault tolerant array will go offline when a single disk drive fails. Multiple disk drive failures will cause a fault-tolerant array to go offline.) In this case, the Trust Array Function may work, but only as long as the failing disk drive continues to operate.

  • Page 32: Deleting An Array

    9 Select Yes and press Enter. The array will be back online Note: If the array does not come back online, too many members may be offline or the array may have additional failures on the bus or enclosure that Trust Array Function cannot fix.

  • Page 33: Managing Partitions

    Managing Partitions Using Adaptec Disk Array Administrator you can manage partitions by Viewing partition status information. See Adding a partition. See Expanding a partition. See Changing a partition name. See Changing a partition LUN. See Deleting a partition. See Understanding Partitions When you create an array, you can choose to make the array all one partition or set up the array for multiple partitions.
  • Page 34 When you create a partition, you set the size of the partition. Figure 2-2 shows a single partition. Partition 1 Free space Figure 2-2 Array After Creating One Partition Disk Array Administrator assigns each partition a unique serial number and sequence number. It assigns sequence numbers in the order the partitions are created, so the first partition on an array is number 1, the second is 2, and so on.

  • Page 35: Viewing Partition Status Information

    After expanding an array, you can either add a partition or expand the last partition to use the new free space. You can also delete one or more partitions and expand a partition into the space. Viewing Partition Status Information You can perform three functions related to partition status.
  • Page 36 To view the status of a partition: 1 Display the Partition Menu. (See Table 2-3 How To Display the Partition Menu From the Array Menu 1 From the System Menu, select Array Menu and press Enter. The Select Array menu appears. 2 Select the array you want and press Enter.
  • Page 37 Similar statistics are also available on an aggregate basis for all partition LUNs. See Displaying Overall Statistics on page To view the partition statistics: 1 Display the Partition Menu. See instructions. 2 Select Partition Statistics and press Enter. The Statistics menu appears. 3 Select View Statistics and press Enter.

  • Page 38: Expanding A Partition

    To reset partition statistics: 1 Display the Partition Menu. See instructions. 2 Select Partition Statistics and press Enter. The Statistics menu appears. 3 Select Reset Statistics and press Enter. The system confirms that you want to make the change. 4 Select Yes and press Enter. The system confirms that the statistics have been cleared and returns to the Statistics menu.

  • Page 39: Changing A Partition Lun

    To change a partition name: 1 Display the Partition Menu. See instructions. 2 Select Change Partition Name and press Enter. The Enter New Name prompt appears. 3 Type the name you want to use and press Enter. You can use up to 35 characters. You can include any characters in the name, including spaces.

  • Page 40: Deleting A Partition

    Deleting a Partition You can delete a partition when you no longer need it and you want to use the space for another purpose. Caution: Deleting a partition deletes all data contained in the partition. Note: You cannot delete a partition while any utility is running on the array.

  • Page 41: Monitoring System Status

    Monitoring System Status In This Chapter Displaying the Event Log Displaying Hardware and Configuration Information Displaying Overall Statistics You can monitor your system regularly to ensure that the controller, disk drives, and arrays are working properly by: Displaying the event log. See Viewing hardware and configuration information.
  • Page 42 Below is a list of some of the key warning and failure events included in the event log during operation: Disk detected error Disk channel error Battery failure Drive down Power up Array critical Array offline Temperature warning Temperature failure (this leads to a shutdown which is also logged) Voltage warning Voltage failure (this leads to a shutdown which is also logged)

  • Page 43: Viewing The Most Recent Event

    Viewing the Most Recent Event The most recent voltage or temperature event displays in rotation with the date and time whenever the Adaptec Disk Array Administrator times out and returns to the System Menu. Viewing One Event at a Time You can view controller-related events one at a time.

  • Page 44: Capturing The Event Log File

    Capturing the Event Log File The entire event log can be saved to a file, which is useful if you want to print the log or attach it to an email message. These instructions assume that you are using HyperTerminal as the terminal emulator software.
  • Page 45 HIGH, MED, or LOW utility priority as set in Adaptec Disk Array Administrator. ON or OFF as set in Adaptec Disk Array Administrator. ENABLED or DISABLED as set in Adaptec Disk Array Administrator. ON or OFF as set in Adaptec Disk Array Administrator.
  • Page 46 Select Hardware Information and press Enter. The Hardware Information window appears. Press Esc to return to the Utilities menu. To display hardware and configuration information: From anywhere in Adaptec Disk Array Administrator, press CTRL-E. The Event Log screen appears. Press CTRL-E again.

  • Page 47: Displaying Overall Statistics

    Displaying Overall Statistics Aggregate statistics for all partition LUNs can be displayed in two formats: List of general statistics. (Similar statistics are also available for individual partition LUNs. For more information, see Partition Statistics on page – I/O operations per second (IOPS) –...
  • Page 48 These statistics can help you interpret performance based on individual system configurations and OSs. They can be used to profile applications and their partition usage, and analyze what type of RAID level is applicable to your needs. Note: The statistics are provided as general information for your use.

  • Page 49: Resetting Overall Statistics

    Resetting Overall Statistics You can reset all of the overall statistics back to zero, which you may want to do if you are monitoring performance. Note: Resetting overall statistics also resets the statistics for each individual partition. See on page 2-26 To reset overall statistics: From the System Menu, select Utilities Menu and press Enter.

  • Page 50: Managing Spares

    Managing Spares In This Chapter Managing Dedicated Spares Enabling Dynamic Spares Managing the Spare Pool DuraStor RAID controllers automatically reconstruct redundant (fault-tolerant) arrays (RAID 3, RAID 4, RAID 5, RAID 50, and mirrored) if an array becomes critical and a proper-size spare disk drive is available.

  • Page 51: Managing Dedicated Spares

    Managing Dedicated Spares Dedicated spares are unused disk drives that you assign as a spare to a specific array. Each disk drive must be as large as the smallest member of the array. You cannot use a dedicated spare in an array or as a pool spare.

  • Page 52: Deleting A Dedicated Spare

    Note: If a disk drive was a member of an array and was removed from that array, you cannot use it as a spare until you clear the its metadata. For more information, see Clearing Metadata from a Disk Drive on page Select the disk drive you want to add as a spare and press Enter.
  • Page 53 With Dynamic Spares enabled, if you have spares or available drives, the controller first looks for a dedicated or spare pool drive for the reconstruction. If none is found, it uses an available drive, which it automatically assigns as a spare and starts reconstruction. You must ensure that the new or available drive is large enough to replace the smallest member in the array and does not contain metadata.

  • Page 54: Managing The Spare Pool

    Managing the Spare Pool Disk drives in the spare pool are available for the reconstruction of redundant arrays. Once you assign a disk drive to the spare pool, it is not available for use as an array member or as a dedicated spare. In active-active mode, pool spares are available to both controllers.

  • Page 55: Displaying The Spare Pool

    Displaying the Spare Pool You can display a list of all of the pool spares. To display the spare pool: From the System Menu, select Pool Spare Menu and press Enter. The Pool Spare menu appears. Select Display Pool Spare and press Enter. The Display Pool Spare window appears.
  • Page 56 Configuring the Controller In This Chapter Rebooting the Controller Changing the Date and Time Configuring the Host Channels Understanding LUNs and Viewing LUN Information Configuring the SCSI Channels Understanding Operating Modes Managing the Other Controller Disabling SCSI Channel 3 Changing the Sample Rate Understanding the Audible Alarm Locking the Cache Configuring the Battery...

  • Page 57: Configuring The Controller

    Select Yes and press Enter. The system confirms that it has shut down. Press Enter to reboot. The system performs its self-test. When you see the Adaptec Disk Array Administrator System Menu, the controller is ready. Chapter 1, Getting Changing the Date and Time You can change the controller’s date and time.

  • Page 58: Configuring The Host Channels

    Select Set Date and press Enter. The Set Date prompt appears. Type the date using this format: mm/dd/yyyy. Press Enter. The system confirms that you want to make the change. Select Yes and press Enter to make the change. The system confirms that the change is made. Press Esc to return to the Configuration menu.
  • Page 59 Table 5-1 Host Channel Settings Host Modes Channel Available Setting Enable/ Stand-alone Disable single-port Stand-alone dual-port Target ID All modes Controller Reset on Active- Failover active Configuring the Controller Description You should not disable the host channel when in single-port mode. In dual-port mode, you can disable a channel when you plan to shut down the host on that channel.

  • Page 60: Understanding Luns And Viewing Lun Information

    To configure the host channels: From the System Menu, select Configuration Menu and press Enter. The Configuration menu appears. Select Host Configuration and press Enter. If the controller is in stand-alone dual-port mode, the Channel menu appears. Select the channel you want to configure and press Enter.

  • Page 61: Viewing Lun Information

    SEP LUNs—Allow access to SEPs. A SEP LUN may be set to a value between 0 and 63 or None. None means that the SEP cannot be accessed via a LUN. For information about changing the SEP LUN, see Changing the SEP LUN on page Partition LUNs—Allow access to partitions on the controller.
  • Page 62 Initiator ID—SCSI ID assigned to each channel of the controller. The default ID is 6 for Channel 1 and 7 for Channel 2. You may need to change the initiator ID if the default conflicts with a SEP ID. You can set the ID to any number between 0 and 15. (In active-active mode, the initiator ID cannot be changed.) Domain Validation—Checks for disk channel hardware and cable problems to ensure that your system can run at Ultra160...

  • Page 63: Understanding Operating Modes

    Understanding Operating Modes Your controller can operate in three different modes: Active-active—Two controllers cooperate in system operation in a fault-tolerant manner. If one controller fails, the other takes over the failed controller’s work, providing another level of redundancy and allowing host access to continue. Stand-alone dual-port—A single controller operating with two host ports.
  • Page 64 Adaptec Disk Array Administrator screens. Controller 1 and 2 may also be referred to as Controller A and B, respectively. Failback—The act of returning ownership of controller resources from a surviving controller to a previously failed (but now active) controller. The resources include disk arrays, cache data, and host ID information.

  • Page 65: Active-Active Operation Scenarios

    Failover—When a failover occurs, the surviving controller will display FAILED OVER on Adaptec Disk Array Administrator, in the area between the board temperature and date. At this point, the arrays, dedicated spares, and pool spares of the failed controller belong to the surviving controller.

  • Page 66: Managing The Other Controller

    Select the option you want and press Enter. The system confirms that you want to make the change. Select Yes and press Enter to make the change. The system confirms that the change is made. Press Esc to return to the Option Configuration menu. Note: You must reboot the controller for the change to take effect.

  • Page 67: Shutting Down The Other Controller

    Select Other Information and press Enter. The Other Information window appears. Press Esc to return to the Other Controller menu. Shutting Down the Other Controller You can gracefully shut down the other controller if you are preparing to replace it or power off the RAID appliance. Always use the Shutdown Other Function in preference to the Kill Other Function.

  • Page 68: Killing The Other Controller

    Select Shutdown Both and press Enter. The system confirms that you want to make the change. Select Yes and press Enter to make the change. Both controllers shut down. Press Esc to return to the Other Controller menu. Killing the Other Controller You can kill the other controller (nongracefully shut it down), which causes the local controller to assume control of its resources.

  • Page 69: Disabling Scsi Channel 3

    Note: If the other controller was unplugged then plugged back in or replaced by a different controller, the surviving controller will automatically unkill the other controller. To unkill the other controller: From the System Menu, select Other Controller Menu and press Enter.

  • Page 70: Changing The Sample Rate

    Note: The controller will not boot if you disable SCSI channel 3 while in active-active mode. You must change your operating mode before disabling SCSI channel 3. To disable SCSI channel 3: From the System Menu, select Shutdown/Restart and press Enter.

  • Page 71: Understanding The Audible Alarm

    When the controller becomes too hot, or detects low or high voltage, an audible alarm sounds and an event message appears in the Adaptec Disk Array Administrator window and in the event log. Warning events are generated when the temperature or voltage enters the warning range.

  • Page 72: Locking The Cache

    From the System Menu, select Configuration Menu and press Enter. The Configuration menu appears. Configuring the Controller What To Do When the Alarm Sounds Check Adaptec Disk Array Administrator to confirm what the alarm means. See Chapter 3, Monitoring System Status.

  • Page 73: Configuring The Battery

    Select Option Configuration and press Enter. The Option Configuration menu appears. Select Cache Lock and press Enter. The Cache Lock menu appears. The current setting is marked with an * next to it. Select the option you want and press Enter. Configuring the Battery You can configure two settings related to the battery: You can enable or disable the battery.

  • Page 74: Changing The Battery Age/Disabling The Battery Life Monitor

    Select Battery and press Enter. The Battery menu appears. The current setting is marked with an * next to it. Select the option you want and press Enter. You must reboot the controller for the change to take effect. Changing the Battery Age/Disabling the Battery Life Monitor Your controller monitors the life of your battery and creates an event when the battery nears the end of its life.

  • Page 75: Changing The Utility Priority

    While the controller reboots, hold down the Spacebar on your keyboard. The Flash Utility screen appears. Press 6 for the Utility menu. The Utility menu appears. Press 4 for Battery Life Monitor Options. The Battery Life Monitor menu appears. Press the letter of the option you want: –...

  • Page 76: Rescanning All Channels

    Low—Use if streaming data without interruption, such as for a Web server, is more important than data redundancy. At this setting, the utilities run at a slower rate with minimal effects on host I/O. To change the utility priority: From the System Menu, select Configuration Menu and press Enter.

  • Page 77: Pausing I/O

    Pausing I/O The DuraStor 312R storage enclosure allows hot-swapping (removing and replacing disk drives while SCSI bus activity continues). The Hot Swap Pause Function suspends activity on all device channels used in the controller and protects data integrity on the connected disk drives and arrays. Note: Pausing I/O halts active I/O to the host.

  • Page 78: Restoring Default Settings

    Restoring Default Settings You can restore all of the controller’s default settings and change those that are critical to your configuration. You may want to do this if the controller is not working properly and you cannot determine why. To restore the default settings: From the System Menu, select Configuration Menu and press Enter.

  • Page 79: Managing Disk Drives And Enclosures

    Managing Disk Drives Managing SAF-TE Enclosures Managing Disk Drives Using Adaptec Disk Array Administrator, you can control a variety of functions related to disk drives. You should also refer to your disk drive documentation and the DuraStor Installation and User’s Guide for information about related functions.
  • Page 80 Displaying All Disk Drives You can display this information for all disk drives connected to the controller: Channel number SCSI target ID number Size Manufacturer Model number Drive firmware revision If any of the disk drives are members of an array, the following information may also display: Utility running—Expand, Verify, and so on.

  • Page 81: Clearing Metadata From A Disk Drive

    Clearing Metadata from a Disk Drive All member disk drives in an array contain metadata, which is used to identify array members after a controller is changed or restarted. If you have a disk drive that was previously a member of an array, you can clear its metadata.

  • Page 82: Displaying Disk Cache Status

    To change the write-back cache setting: From the System Menu, select Configuration Menu and press Enter. The Configuration menu appears. Select Disk Configuration and press Enter. The Disk Configuration menu appears. Select Write-back Cache and press Enter. The Write-back Cache menu appears. The current setting is marked with an * next to it.

  • Page 83: Enabling And Disabling Smart Changes

    You can blink the LED of a specific disk drive. The drive continues blinking its LED until you do one of the following: Press Esc before Adaptec Disk Array Administrator times out. Repeat the blink LED command, which toggles the Blink LED command off.

  • Page 84: Taking Down A Disk Drive

    To blink a disk drive LED: From the System Menu, select Utilities Menu and press Enter. The Utilities menu appears. Select Drive Utilities Menu and press Enter. The Drive Utilities menu appears. Select Blink Drive LED and press Enter. The Select Drive(s) menu appears. Select the disk drive you want and press Enter.

  • Page 85: Testing A Disk Drive

    To take down a disk drive: From the System Menu, select Utilities Menu and press Enter. The Utilities Menu appears. Select Drive Utilities Menu and press Enter. The Drive Utilities Menu appears. Select Down Drive and press Enter. The Select Drive(s) menu appears showing disk drives that are array members.

  • Page 86: Managing Saf-Te Enclosures

    Managing SAF-TE Enclosures An SEP is a SCSI device from which the RAID controller can inquire about environmental conditions such as temperature, power supply and fan status, and the presence or absence of disk drives. The RAID controller can also tell the SEP about RAID activities such as disk drive rebuilds and failed disk drives.

  • Page 87: Changing The Additional Sep Settings

    Select the option or number you want to use. See options. Table 6-1 SEP LUN Options Not assign the SEP an LUN Keep the same LUN for the SEP at all times The system confirms that you want to make the change. Select Yes and press Enter to make the change.
  • Page 88 To change the SEP settings: From the System Menu, select Configuration Menu and press Enter. The Configuration menu appears. Select SEP Configuration and press Enter. The SEP Configuration menu appears. Select SEP Settings and press Enter. The Poll Rate prompt appears. Type the poll rate you want, in seconds, and press Enter.

  • Page 89: Troubleshooting

    Using the Loader Utility Menu Understanding SCSI Errors Adaptec Technical Support For assistance configuring and using your Adaptec product, contact your authorized distributor or Adaptec technical support at: 1 321-207-2000 or http://www.adaptec.com. Resolutions to common problems you may encounter are described in the following sections.

  • Page 90: Input Problems

    Input Problems Problem: The system won’t accept input from the keyboard. Ensure that you have set the input mode to external: On the I/O connectivity panel of the DuraStor 6200SR, turn the switch to EXT. On the DuraStor 6200SR Operator Control Panel, use the arrow buttons to: Choose Hardware Menu, then press Enter.

  • Page 91: Array Problems

    Problem: Nothing is displayed on the terminal emulator screen. The probable cause of this problem is a bad RS-232 cable connection or swapped transmit/receive lines. If the cable is properly connected on both ends, try a null modem adapter, which will reverse the RS-232 transmit and receive signals.

  • Page 92: Host Scsi Channel Problems

    Problem: The host SCSI BIOS scan displays “Device name not available”. The controller is properly connected, but no arrays have been created. Use Adaptec Disk Array Administrator to create an array and reboot the host system. Problem: The host SCSI BIOS scan hangs.

  • Page 93: Device Scsi Channel Problems

    Problem: Not all disk drives connected to the controller device channels are displayed during boot, or the controller hangs during display of connected disk drives and never reaches the Adaptec Disk Array Administrator screen. Check your storage enclosure documentation to be sure that the enclosure is properly configured for use with a RAID controller.

  • Page 94: Problems During Bootup

    When this failure occurs, it means the internal CPU memory failed. Replace the controller to correct the problem. Problem: One of the POST diagnostic tests failed. Contact Adaptec technical support. Problem: The system hangs at Follow these steps to resolve the problem: Check the disk and host channels to make sure they are properly terminated.
  • Page 95 Problem: The system hangs during a disk drive scan. Follow these steps to resolve the problem: Check the storage enclosure to make sure everything is properly connected. Remove and replace the disk drive that failed the scan. If the storage enclosure and the disk drive work properly, replace the controller.

  • Page 96: Warning And Error Events

    There are a number of conditions that trigger warning or error events, activate the audible alarm, and may affect the state of the Status and Fault LEDs. The audible alarm sounds mainly when Adaptec Disk Array Administrator displays a warning or error event. Table 7-1 Table 7-2 and recommended actions to take to fix the problems.
  • Page 97 Table 7-1 Warning Events (Continued) Event Definition DRIVE DOWN An error occurred with the disk drive and it was downed, removing it from the active array. REPLACE The battery is BATTERY approaching its 3-year life span. SDRAM CORR A correctable single-bit SDRAM ECC error occurred.

  • Page 98: Errors

    FAIL convertor monitored a temperature and/or voltage in the failure range. Using the Loader Diagnostics Menu If you have any diagnostic errors, contact Adaptec technical support. (See page 7-1 Table 7-2 defines each error event and Recommended Action Replace the controller’s battery.

  • Page 99: Using The Loader Utility Menu

    Using the Loader Utility Menu If you have any diagnostic errors, contact Adaptec technical support. (See page 7-1 Understanding SCSI Errors The event log includes SCSI errors reported by SEPs and disk drives on your system. If you see these errors in the event log, the information below may assist you.
  • Page 100 Table 7-3 Sense Key Descriptions Sense Key Description No sense Recovered error Not ready Medium error Hardware error Illegal request Unit attention Data protect Blank check Vendor-specific Copy aborted Aborted command Obsolete Volume overflow Miscompare Reserved Troubleshooting 7-12...

  • Page 101: Disk Channel Errors

    Disk Channel Errors Table 7-4 ASC and ASCQ Descriptions ASCQ Disk channel errors are similar to disk-detected errors, except they are detected by the controller, instead of the disk drive. Some disk channel errors are displayed as text strings, others are displayed as hexadecimal codes.
  • Page 102 Table 7-5 Disk Channel Error Codes Error Code Description Data overrun or underrun occurred while getting sense data. Request for sense data failed. Selection timeout occurred (displayed as Sel Timeout). Controller detected an unrecoverable protocol error on the part of the target. Unexpected bus-free condition occurred (displayed as Unex Bsfree).

  • Page 103: Voltage And Temperature Errors And Warnings

    Troubleshooting Voltage and Temperature Errors and Warnings Most voltage and temperature errors and warnings occur due to the storage enclosure. Check the storage enclosure configuration first. 7-15...

  • Page 104: Storage Systems

    Storage Concepts In This Appendix Devices Controllers Storage Systems Channels Disk Drives Arrays Free Space Partitions Redundancy Array Types Disk Array Administrator uses specific terms to describe storage concepts and configurations. If you are new to storage technology and array configurations, this section will help you understand basic Redundant Array of Independent Disks (RAID) technology and terminology.

  • Page 105: Controllers

    Storage Concepts Controllers A controller is a hardware device that performs input/output (I/O) functions. Controllers also perform other functions such as read and write caching and RAID management. They can be internal (inside the host computer) or external (in an enclosure). Controllers are also known as an adapters, embedded storage controllers, or Host Bus Adapters (HBA).

  • Page 106: Arrays

    Channel Number—Indicates to which channel (bus) on the controller the SCSI drive is attached. SCSI ID (also known as target ID)—Identifies the drive on the SCSI channel. Logical Unit Number (LUN)—The number assigned to a subdevice (logical unit) of a SCSI device, which is usually zero for a disk drive.

  • Page 107: Free Space

    Figure A-1 represents an array made up of two disk drives. The free space of the larger drive is not used. Partition A1 (Used) Drive 1 Figure A-1 One array made up of two disk drives Free Space Free space refers to the space on a an initialized disk drive that is not in use by an array.
  • Page 108 Contiguous storage space produced during the RAID creation process. See Figure Array on Virtual Free Space Partition Before Array Creation After Array Creation Figure A-2 Array Made of Single Partitions These partitions are not seen by the operating system. Rather, they are the building blocks of a virtual disk.

  • Page 109: Redundancy

    Redundancy Redundancy refers to the capability of preventing data loss if a disk drive fails. Some array types give you this capability in one of two methods: Two identical copies—Data is written to partitions on two disk drives, resulting in the same data being stored in two places. Mirror sets, for example, use this method.
  • Page 110 Table A-1. Common Array Types Array Type Strengths RAID 5 set Lower cost than RAID 1 Very high read performance (similar to RAID 0) Very high data protection (similar to RAID 1) Supports multiple simultaneous read and write operations Can be optimized for large, sequential requests Stripe set of Very high performance...

  • Page 111: Volume Set

    Volume Set A volume set, also known as a virtual disk or a JBOD, is a single disk drive that is not used in an array. Depending on the controller, a volume set can also be a partition that equals the full capacity of a given disk drive.
  • Page 112 A stripe set distributes the data among the partitions in a way that optimizes access speed (performance). By making a single request for the amount of data in a stripe, an application can get all of the array’s member disk drives to work for it simultaneously, thus optimizing large sequential access speed or concurrent access for multiple small I/O requests.

  • Page 113: Mirror Set (Raid 1

    Applications Suitable for Striped Sets Compared to RAID arrays, striped sets are not well-suited for online storage of important data. They can, however, be useful for storing the following: Program image libraries or run-time libraries Large tables or read-only data structures The above applications can be backed up on tape or on other RAID arrays for security, while a copy on a striped array can provide rapid application access.
  • Page 114 Applications Suitable for Mirror Sets Mirror sets are particularly suitable for the following types of applications: Data for which reliability and availability requirements are the first priority Backing up of online data with minimum application downtime RAID 5 The RAID 5 set uses parity to provide redundancy. RAID 5 disk drives may operate independently of each other allowing multiple simultaneous read and write operations.

  • Page 115: Raid 5

    Drive 1 Partition A1 Partition A2 4 GB 4 GB Chunks Chunks 1,P*,7,10,13... 2,4,P*,11,14... *P = Parity Figure A-6 RAID 5 set Applications Suitable for RAID 5 Sets These types of applications are suitable for RAID 5 sets: Transaction read requests are high. Data availability is worth protecting, but the cost of mirroring would excessive.

  • Page 116: Stripe Set Of Mirror Sets (Raid 0/1

    Stripe Set of Mirror Sets (RAID 0/1) Multilevel arrays or hybrid arrays are arrays that contain other arrays. A stripe set of mirror sets, also known as RAID 0/1, is an multilevel array made up of two or more equal-sized mirror sets. The data in a stripe set of mirror sets is redundant.

  • Page 117: Stripe Set Of Raid 5 Sets (Raid 50

    The stripe set of mirror sets is the top-level array, and mirror sets A, B, and C are the underlying arrays. Applications Suitable for RAID 0/1 Sets The following types of applications benefit from the increased data availability and performance provided by RAID 0/1 sets: Any data whose value and volume justifies placing it on mirrored disk storage.
  • Page 118 RAID 5 Set A 8 GB Chunks 1,3,5,7... Drive 1 Drive 2 Partition A Partition B Partition C 4 GB 4 GB 4 GB Chunks Chunks Chunks 1,7,P*,13... 3,P*,9,15... P*,5,11,P*... *P = Parity Figure A-8 Stripe set of RAID 5 sets The stripe set of RAID 5 sets is the top-level array, and RAID 5 sets A and B are the underlying arrays.

  • Page 119: Saf-Te Implementation

    SAF-TE Implementation In This Appendix What Is SAF-TE and What Are SEPs? Enclosure Considerations Administrator Utility SEP Configuration Options Host Communication Methods This section describes how to implement the SCSI Accessed Fault- Tolerant Enclosures (SAF-TE) Interface Specification and how to adjust specific parameters.

  • Page 120: Enclosure Considerations

    Enclosure Considerations The DuraStor Storage Subsystem includes SEPs. The controller provides information to the user via the enclosure LEDs and the host interface. The controller uses a standard set of SCSI commands to communicate with the SEPs via back-end disk channels. This communications path is managed by the controller and is transparent to the user.

  • Page 121: Administrator Utility Sep Configuration Options

    SAF-TE Implementation Administrator Utility SEP Configuration Options SAF-TE configuration settings are automatically enabled when the DuraStor 6200S RAID controller controller is installed in an enclosure that contains a SEP. No changes are required to the default configuration settings to support SAF-TE. However, the user can configure configure the SEP LUNs and the SEP settings to fit the user’s specific environment.

  • Page 122: Glossary

    Glossary active-active Active-active mode is when two controllers in a storage system cooperate to provide redundancy. If one controller fails, the remaining controller takes over. To accomplish this, each controller has two host ports, one of which is normally active, the other normally passive.
  • Page 123 chunk A contiguous set of data written onto a single disk drive when a stripe set, RAID 5 set, or stripe set of mirror sets distributes, or stripes, data across its respective disk drives. See also set (RAID stripe set of mirror sets (RAID RAID 5 sets (RAID 50).
  • Page 124 Glossary enclosure A physical housing for disk drives, which can be connected externally to a computer. An enclosure usually contains one or more power supplies, fans, and temperature sensors. See also SAF-TE (SCSI Accessed Fault-Tolerant Enclosure). enclosure ID Enclosures that are controlled by a SAF-TE or SES (SCSI Enclosure Services) processor are identified by an enclosure ID.
  • Page 125 Glossary HBA (host bus adapter) An HBA is the critical link between a host server or workstation and a storage subsystem, integrating computing platforms, OSs, and I/O protocols to ensure proper interoperability and functionality. The HBA provides direct storage connectivity from the system to data within the storage subsystem and enables stable, high-speed transmission of information and files.
  • Page 126 Glossary logical unit number See LUN. loop address A loop address is an fibre channel (FC) term that indicates the unique ID of a node in FC loop topology. A loop address is sometimes referred to as a Loop ID. Stands for logical unit number.
  • Page 127 partition A subdivision of a disk or storage area. There are three main types of partitions: A portion of a physical or virtual disk drive that functions as a separate unit. A single disk drive can be divided into several partitions, each of which the OS sees as a separate device with its own volume name (such as D:, E:, F:, and so on).
  • Page 128 RAID 0 stripe set (RAID RAID 0/1 stripe set of mirror sets (RAID RAID 0/5 stripe set of RAID 5 sets (RAID RAID 1 mirror set (RAID RAID 3 A RAID 3 set is an array made up of three or more disk drives. It uses parallel access, meaning all member disk drives participate concurrently in every I/O operation directed at the array.
  • Page 129 Glossary redundancy The capability of preventing data loss if a disk drive fails. Some array types give you this capability using one of two methods: two identical copies or parity. SAF-TE (SCSI Accessed Fault-Tolerant Enclosure) The SAF-TE specification is an open specification designed to provide a comprehensive standardized method to monitor and report status information on the condition of disk drives, power supplies, cooling systems, and other components used in high-...
  • Page 130 Glossary SCSI channel termination See termination. SCSI device A single unit on a SCSI bus that originates or services SCSI commands. A SCSI device is identified by a unique SCSI address. SCSI devices can act as initiators or targets. SCSI ID The number assigned to each SCSI device attached to a SCSI channel.
  • Page 131 The subsystem is controlled from the host system using storage management software or firmware (such as Adaptec Disk Array Administrator). Since the controller is accessed using standard SCSI protocols, the need for specific OS drivers is eliminated. Some external RAID controllers can be configured with single or dual host channels and can support either standalone mode, or as an active-active failover pair.
  • Page 132 termination Termination (also known as a terminator block) refers to the electrical connection at each end of a SCSI bus. The function of a terminator block is to provide for a proper electrical transmission of the data across the cable. SCSI buses require that a terminator be placed on the output SCSI connector on the last SCSI peripheral.

  • Page 133: Index

    5-11 pool spares 4-1, 4-5, SCSI channel 3 5-15 shutting down both controllers 5-12 terminology unkilling 5-9, 5-13 Adaptec alarm. See audible alarm array number arrays 2-1, adding 5-10 backoff percentage creating critical arrays 2-15 deleting 2-21, 5-10...
  • Page 134 backoff percentage battery 5-18 5-19 battery life monitor 5-19 baud rate 1-3, blinking LEDs bootup troubleshooting bus speed buses cache lock 5-17 channel 3, enabling/disabling 5-8, 5-14 5-15 channel number 2-12, channels configuring definition errors 7-13 rescanning 5-21 chunk size chunks clock problems COM port...
  • Page 135 hot-swapping 5-22 LEDs member number metadata rescanning rescanning channels SMART spare pools spare types status 2-12 testing TUR command disk IDs disks. See disk drives domain validation Down Drive Function drive numbers 2-12 drive requirements drives. See disk drives dual boot 5-10 dynamic spares enclosures...
  • Page 136 numbering operating systems overlapping parititon LUNs SEP LUNs statistics viewing member number metadata mirror set A-6, A-10 multiple-partition arrays definition expanding 2-16 partitions 2-22 mute setting 5-16 naming arrays 2-2, naming partitions 2-27 online help operating modes See also active-active mode, stand-alone mode other controller 5-11...
  • Page 137 SAF-TE SEPs and SAF-TE enclosures 6-10 and SAF-TE implementation SAF-TE enclosures SAF-TE Environmental Processor. See SEP sample rate 5-15 screen display SCSI BIOS channels configuring troubleshooting domain validation SCSI channel 3 5-8, 5-15 enabling/disabling 5-15 SCSI ID 5-7, SecRd statistic 2-25 SecWt statistic 2-25...
  • Page 138 terminal emulator troubleshooting terminal program parameters Test Unit Ready command. See TUR command timing out troubleshooting bootup COM port device SCSI channel host SCSI channel terminal emulator trusting arrays 2-19 unkilling 5-9, 5-13 utility priorities verifying arrays virtual drives voltage warnings volume set warning events Write statistic...
  • Page 139 Adaptec, Inc. 691 South Milpitas Boulevard Milpitas, CA 95035 USA © 2001 Adaptec, Inc. All rights reserved. Adaptec and the Adaptec logo are trademarks of Adaptec, Inc. which may be registered in some jurisdictions. : 512933-06, Ver. AA LW 08/01...

This manual is also suitable for:

7320ssDisk array administrator

Table of Contents