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IBM System Storage?subsystem controller firmware version 07.77.20.00 for
the DS3950-all models, DS5020-all models, DS3500-all models and DCS3700-all
models storage subsystems.


=====================================
BEFORE INSTALLING 07.77.20.00, PLEASE VERIFY ON SSIC (URL BELOW) THAT YOUR
STORAGE ENVIRONMENT IS SUPPORTED:
http://www.ibm.com/storage/support/config/ssic
=====================================

Attention:

     A potential issue with the cache memory Error Correcting Code (ECC)
     logic had been identified in the IBM System Storage DS3500 (DS3512 and
     DS3524) ONLY with controller firmware versions 7.70.40.0 and older,
     controller firmware version 7.75.11.0 and controller firmware version
     7.77.18.0. The DS3500 storage systems with these controller firmware
     versions installed should be upgraded to controller firmware version
     7.77.19.00 (or later) immediately to avoid possible data integrity
     issues. This issue does not exist in other IBM System Storage DS3000,
     DS4000 and DS5000 systems.
     
     
(C) Copyright International Business Machines Corporation 1999, 2011. All
rights reserved. US Government Users Restricted Rights - Use, duplication,
or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Note: Before using this information and the product it supports, read the
general information in section 6.0 "Trademarks and Notices" in this
document.


Note: Before commencing with any firmware upgrade procedure, use the
      Storage Manager client to perform a Collect All Support Data capture.
      Save this support data capture on a system other than the one that is
      being upgraded.


Refer to the IBM System Storage?Support Web Site or CD for the IBM
DS Storage Manager version 10 Installation and Host Support Guide for
firmware and NVSRAM download instructions.

For other related publications, refer to Related Publications in the
Installation, User's and Maintenance guide of your DS storage subsystem
or storage expansion enclosures.


Last Update:   06/29/2011


Products Supported:

    ---------------------------------------------------------------
   | New Model  | Old Model | Machine Type |     Model             |
   |------------|-----------|--------------|-----------------------|
   |  DS3950    |   N/A     |     1814     | 94H, 98H              |
   |------------|-----------|--------------|-----------------------|
   |  DS5020    |   N/A     |     1814     | 20A                   |
   |------------|-----------|--------------|-----------------------|
   |  DS3500    |   N/A     |     1746     | C2A, A2S, A2D, C4A,   |
   |            |           |              |      A4S, A4D, C4T    |
   |------------|-----------|--------------|-----------------------|
   |  DCS3700   |   N/A     |     1818     | 80C                   |
    ---------------------------------------------------------------


Supported Enclosure Attachments:
   
   The DCS3700-80C supports the attachment of the DCS3700-80E drive enclosure
   only.

   The DS3500 (DS3512 and DS3524) supports the attachment of EXP3500 (EXP3512
   and EXP3524) drive enclosures only.

   The DS3950 supports the attachment of EXP395 drive enclosures. EXP810 drive
   enclosure attachment is supported as a premium feature and will require a
   premium feature key.

   The DS5020 supports the attachment of EXP520 drive enclosures. EXP810 drive
   enclosure attachment is supported as a premium feature and will require a
   premium feature key.
  

Notes:
     The following table shows the first four digits of the latest controller
     firmware versions that are currently available for various models of the
     DCS3700/DS3500/DS3950/DS4000/DS5000 storage subsystems.


         ---------------------------------------------------
        | IBM Storage      |  Controller firmware version   |
        | Subsystem Model  |                                |
        |------------------|--------------------------------|
        | DS5300 (1818)    | 07.77.xx.xx                    | 
        |------------------|--------------------------------|
        | DS5100 (1818)    | 07.77.xx.xx                    |
        |------------------|--------------------------------|
        | DS5020 (1814)    | 07.77.xx.xx                    |
        |------------------|--------------------------------|
        | DS4800 (1815)    | 07.60.xx.xx                    |
        |                  | (07.60.28.00 or later only)    |
        |------------------|--------------------------------|
        | DS4700 (1814)    | 07.60.xx.xx                    |
        |                  | (07.60.28.00 or later only)    |
        |------------------|--------------------------------|
        | DS4500 (1742)    | 06.60.xx.xx                    |
        |------------------|--------------------------------|
        | DS4400 (1742)    | 06.12.56.xx                    |
        |------------------|--------------------------------|
        | DS4300 Turbo     | 06.60.xx.xx                    |
        | Option (1722)    |                                |
        |------------------|--------------------------------|
        | DS4300           | 06.60.xx.xx                    |
        | Standard Option  |                                |
        | (1722)           |                                |
        |------------------|--------------------------------|
        | DS4200 (1814)    | 07.60.xx.xx                    |
        |                  | (07.60.28.00 or later only)    |
        |------------------|--------------------------------|
        | DS4100 (1724)    | 06.12.56.xx                    |
        | (standard dual   |                                |
        |  Single          |                                |
        |  controller Opt.)|                                |
        | --------------------------------------------------|
        | DS3950 (1814)    | 07.77.xx.xx                    |
        |------------------|--------------------------------|
        | DCS3700 (1818)   | 07.77.xx.xx                    |
        |------------------|--------------------------------|
        | DS3500 (1746)    | 07.77.xx.xx                    |
         ---------------------------------------------------

   
ATTENTION:
  1. The DS4300 with Single Controller option(M/T 1722-6LU,6LX,and 6LJ),
     FAStT200 (M/T 3542-all models) and FAStT500 (M/T 3552-all models)
     storage subsystems can no longer be managed by DS Storage Manager
     version 10.50.xx.23 and higher.         
  2. For the DS3x00 storage subsystems, please refer to the readme files that
     are posted in the IBM DS3000 System Storage support web site for the
     latest information about their usage, limitations or configurations.

     http://www.ibm.com/systems/support/storage/disk


=======================================================================
CONTENTS
--------
1.0  Overview
2.0  Installation and Setup Instructions
3.0  Configuration Information
4.0  Unattended Mode
5.0  Web Sites and Support Phone Number
6.0  Trademarks and Notices
7.0  Disclaimer


=======================================================================
1.0   Overview
--------------

   The IBM System Storage?controller firmware version 07.77.20.00 release
   includes the storage subsystem controller firmware and NVSRAM files for
   the DS3950-all models, DS5020-all models, DS3500-all models and DCS3700-
   all models. This is a controller firmware update release for the DS5020,
   DS3950, DS3500 and the DCS3700 storage subsystems. The IBM DS Storage
   Manager host software version 10.77.x5.16 is required to manage DS
   storage subsystems with controller firmware version 7.77.20.00
   installed.

   ATTENTION: DO NOT DOWNLOAD THIS CONTROLLER FIRMWARE ON ANY OTHER DS3000,
   DS4000 or DS5000 STORAGE SUBSYSTEM MODELS.

   The IBM System Storage DS Storage Manager version 10 Installation and
   Host Support Guide is available on IBM's Support Web Site as a down-loadable
   Portable Document Format (PDF) file.

   The DS5020, DS3950, DS3500 and DCS3700 are shipped with a complimentary
   of two partition storage partitioning premium feature. Please contact
   IBM Marketing representatives or IBM resellers if you want to purchase
   additional Storage partitioning options for your subsystems. In
   addition, the Full Disk Encryption and Copy Services premium features -
   FlashCopy, VolumeCopy and Enhanced Remote Mirroring are separately
   purchased premium feature options.

  
   See section 3.3 "Helpful Hints" for more information.

   Refer to the IBM Support Web Site for the latest Firmware and NVSRAM
   files and DS Storage Manager host software for the IBM DS Storage
   Subsystems.

   http://www.ibm.com/systems/support/storage/disk

   New features that are introduced with the controller firmware version
   07.77.xx.xx or later will not be available for any DS3950/DS5020/
   DS3500/DCS3700 storage subsystem controllers without the controller
   firmware version 07.77.xx.xx or later installed.

   The following table shows the controller firmware versions required for
   attaching the various models of the DS3950/DS5020/DS3500/DCS3700 drive
   expansion enclosures.
     
    ----------------------------------------------------
   | Controller |EXP Storage Expansion                  |
   | FW Version |Enclosures                             |
   |            |---------------------------------------|
   |            | EXP520  | EXP395  | EXP3500 | DCS3700 |
   |            |         |         |         |   80E   |
   |------------|---------|---------|---------|---------|
   |7.60.xx.xx  |  Yes    |  Yes    |   No    |   No    |
   |------------|---------|---------|---------|---------|
   |7.70.xx.xx  |  Yes    |  Yes    |  Yes    |   No    |
   |------------|---------|---------|---------|---------|
   |7.77.xx.xx  |  Yes    |  Yes    |  Yes    |  Yes    |
   ------------------------------------------------------

 

1.1  Limitations
---------------------
IMPORTANT:
The listed limitations are cumulative. However, they are listed by the storage
subsystem controller firmware and Storage Manager host software releases to
indicate which controller firmware and Storage Manager host software release
that they were first seen and documented.

Note: For limitations in certain operating system environments, refer to the
readme file that is included in the DS Storage Manager host software package for
that operating system environment.

Limitations with version 07.77.20.00 release.
None


Limitations with version 07.77.19.00 release.
None


Limitations with version 07.77.18.00 release.

1. "Transferred on" date for Pending configuration is incorrect in AMW
   physical tab. The timestamp displayed for the staged-firmware image will
   be incorrect. This problem can be avoided by ensuring the controller뭩
   real-time clock is correct before upgrading firmware.

2. ESM State capture info is truncated during support bundle collection.
   An additional support-bundle can be collected to obtain valid ESM
   capture-data. If this issue occurs, the support-bundle that is captured
   will be missing some information in the ESM state-capture.

Limitations with version 07.70.38.00 release.

1. The ETO setting of the 49Y4235 - Emulex Virtual Fabric Adapter (CFFh)
   for IBM BladeCenter HBA must be manually set to 144 second. Please
   review the publications that is shipped with the card for instruction
   to change the setting.


Limitations with version 07.70.23.00 release.

1. FDE Drive in 밪ecurity Locked?state is reported as 밿ncompatible?state
   in the drive profile.  The drive can be recovered by importing the
   correct lock key.

2. The condition when LUNs within a Raid array have split ownership between the
   two controllers could possibly see false positives on synthesized PFA has been
   corrected by CR151915.  The stagnant I/O will be discarded.


3. ESX 3.5.5:
  - Filesystem I/O in SLES11 VM failed during CFW upgrade in ESX35U5 + P20
            patches.
  Restriction: Running I/O with SLES11 VM filesystem while updating controller
               firmware in VMware 3.5U5 + P20 patch.
  Impact:      User will see I/O error and  Filesystem volumes in SLES11 VMs
               will be changed to read-only mode.
  Work-around: User can either perform controller FW upgrade with no I/O
               running on SLES11 VM or with no Filesystem created in SLES11 VMs.
  Mitigation:  User can unmount the filesystem and remount the filesystem,
               then I/O should be able to restart.

4. ESX 4.1:
  - I/O failed on Filesystem volume in SLES11 VM on ESX41.
  Restriction: Running I/O with SLES11 VM filesystem while updating
               controller firmware in VMware 4.1 env.
  Impact:      User will see IO error and  Filesystem volumes in SLES11
               VMs will be changed to readonly mode.
  Work-around: User can either perform controller firmware upgrade with no
               I/O running on SLES11 VM or with no Filesystem created in SLES11
               VMs. 
  Mitigation:  User can unmount the filesystem and remount the filesystem,
               then I/O should be able to restart.

 
  - Data Error in Head and Tail Sector is not matching during FcChipLip test
  with SANbox.
  Restriction: Need excess host and drive side chips reset simultaneously
               for a long time on ESX4.1, Qlogic QLE2562 and SANbox 5800
  Impact:      The LBA stored in the header or tail does not match the
               expected LBA.
  Work-around: N/A
  Mitigation:  None


  - I/O's failed in SLES10.2 VM during Controller FW Upgrade test on ESX41
    with Brocade HBA.
  Restriction: Avoid online concurrent controller download with Brocade 8gb
               HBAs (8x5) on all guest OSes.
  Impact:      User will often see this issue if controller firmware upgrade
               is performed with I/O. 
  Work-around: This issue occurs on various guest OSes so to avoid the
               issue, user should perform an offline (no I/O to controllers)
               controller firmware upgrade.
  Mitigation:  Reboot the failed VM host.


  - Bladecenter: I/O errors reported on Linux VMs during automated CFW
    download.
  Restriction: Running IO with SLES11 VM filesystem while updating CFW in
               VMware 4.1 env.
  Impact:      User will see IO errors on Linux Virtual machines if they
               upgrade Controller Firmware while they have active I/Os.
  Work-around: Stop all I/Os to the array from the ESX4.1 host (at least
               from the Linux Virtual Machines) during Controller Firmware
               Downloads.
  Mitigation:  Users will have to reissue the I/O after controller firwmare
               updating has completed.

 
  -  RHEL5.5 RHCS Node stuck during shutdown when running nodefailover test.
  Restriction: avoid soft-reboot with RHEL5.5 x64, IA64, PPC with Redhat
               Cluster Suite.  Need to do hard-boot.
  Impact:      The node will hang indefinitely and will not come back online.
  Work-around: physically power it off.
  Mitigation:  Will need to turn the node off manually, by physically
               powering it off.


  - RHEL5.5 RHCS gfs failed to mount the filesystems during node bootup.
  Restriction: avoid node reboot on RH5.5 x64, IA64, PPC, Redhat cluster
               suite env with nodes running GFS.
  Impact:      The node failed to remount all the external storage disks
               file systems (GFS) during boot up.  Applications will lost access
               to the cluster뭩 resource when the 2nd node reboot/offline.
  Work-around: create a script to sleep for 30 sec and allow it executes
               at startup.
  Mitigation:  Restart clvmd after boot , then restart gfs.


Limitations with versions 07.70.16.01 release.
 
1. After a host cable is removed, it could take up to 5 minutes before the
   error condition is reported in the Storage Manager client.

2. When performing a replacement of a BladeCenter SAS switch module, wait
   at least 5 minutes before reconnecting the SAS cables to the switch module.
   This is to allow the switch module time to boot-up and complete it's SAS
   discovery prior to re-discovery of the SAS paths.  Reattaching the SAS cables
   to soon can result in the SAS path's to not be discovered.

3. During deletion of a logical drive it is possible that a "ghost" (I.E. a
   logical drive displayed with a dotted line picture) will be visible.  If
   this occurs you will need to go to Modify -> Edit Host-to-Logical Drive
   Mappings. Then select the logical drive in question and click on the
   remove option. This will destroy the "ghost" logical drive.
  
4. Arrays created using RAID levels 3,5, or 6 that will be mapped to an AIX
   host, need to contain at a minimum five (5) hard drives.

5. VMware is currently not supported by the DS3500 using iSCSI.

6. When using Linux Device Mapper failover solution, the host will now
   initiate failover after a specified number of outstanding I/Os rather
   then a specified length of time when using the RDAC failover solution.

7. Currently when running some JSxx and QSxx blades with a SAS HBAs it is
   possible to see intermittent IO failures after a path failure.  This
   issue is still being investigated but the following steps will insure
   that the failure does not occur:
  
   Edit the kernel boot line in your /boot/grub.conf file and add mem=3G boot
   option to the command line.

8. When using a DS3500 with a SAS host daughter care attached to a IBM
   BladeCenter chassis, you will not be able to swap installed and
   configured blades into an additional chassis and maintain those
   connections.  You must power cycle the DS3500 before connecting it to
   the new BladeCenter chassis.

9. Currently the device drivers for RHEL 4.5 and above for the MPT SAS driver
   do not support the Enhanced Error Handling supported by the IBM JS
   blades. If you are running these Operating systems you could see errors
   during path restoration indicating that the MPT SAS driver has crashed.

10. If you are running SLES 10 with XEN support enabled you will be unable to
    connect to a DS3500 controller.
   
11. The Storage Manager Client will accept accepts a value of 9000 for the
    TCP MSS setting. The iSCSI host daughter card will only negotiate the
    TCP MSS value to 8240 when a connection is established.
   
12. In a single controller configuration, a copy of the controller firmware
    image is written to enclosure hard disk drives.  In the event of a
    controller failure and replacement, the replacement controller firmware
    will sync with the image stored on the disk drives.  Drives that are
    newly imported into a single controller storage subsystem will not
    store the current controller firmware image.

   

1.2  Enhancements
-----------------
  

   The DS Storage Manager version 10.77.xx.10 host software in conjunction
   with controller firmware version 7.77.20.xx and higher provides a fix
   for the cache battery failures after an incomplete learn cycle. In
   addition, controller firmware version 7.77.19.00 and higher also
   provides
  
    
   - Support the new IBM DS storage subsystem DCS3700 controller and drive
     expansion enclosure.
  
   - Support for the DS3524 storage subsystem with DC power supplies.
  
   - Support for the new 1TB NL SAS drive options for the DS3500 storage
     subsystems.
    
   - Support for DS3500 subsystem enhanced capabilities. Please refer to the
     DS3500 Installation, User's and Maintenance guide or the DS3500
     announcement letter for more information.

   - Support for SAS drives with T10PI capability in the DS5020 and DS3950
     storage subsystems.
  
   - Various RAS enhancements.

   - A fix to prevent a potential data integrity issue involving the DS3500
     (DS3512 and DS3524) cache memory Error Correcting Code (ECC) logic in
     the IBM System Storage DS3500s. The DS3500 controller firmware must be
     upgraded to controller firmware version 7.77.19.00 or later (ie
     7.77.20.00) to avoid possible data integrity issues. Please review the
     changelist file for a list of additional DS3500 fixes included in this
     version of controller firmware. 
    
 

Note:
   Host type VMWARE has been added to NVSRAM as an additional host type.
   DS4200 and DS4700 will use index 21 
   All other supported systems will use index 16
   Although not required, if using a Linux host type for a VMWARE host, it
   is recommended to move to the VMWARE host type since any upgrading of
   controller firmware and NVSRAM would continue to require running scripts,
   whereas using the VMWARE host type does not require running scripts.
   - The controllers do not need to be rebooted after the change of host type.
   - The host will need to be rebooted.
   - Changing the host type should be done under low I/O conditions.


1.3  Prerequisites
------------------

   The IBM DS Storage Manager host software version 10.77.x5.16 is required to
   manage DS3000, DS4000, and DS5000 storage subsystems with controller firmware
   version 07.77.20.00 installed.


1.4  Dependencies
-----------------

   The information in this section is pertinent to the controller firmware
   version 7.77.xx.xx release only. For the dependency requirements of
   previously released controller firmware versions, please consult
   the Dependencies section in the readme file that was packaged with each
   of those controller firmware releases.


   ATTENTION:

   1. Always check the README files (especially the Dependencies section)
      that are packaged together with the firmware files for any required
      minimum firmware level requirements and the firmware download
      sequence for the storage/drive expansion enclosure ESM, the
      storage subsystem controller and the hard drive firmware.
     
   2. The EXP810 and EXP520 ESM firmware version must be at or greater
      than 98C5.

   3. The disk drives and ESM packages are defined in the Hard Disk Drive
      and ESM Firmware Update Package version 1.67 or higher found at the IBM
      support web site.

 

1.5 Level Recommendations
-----------------------------------------

     1. Storage Controller Firmware versions:

        a. DS3500:             FW_DS3500_07772000
        b. DCS3700:            FW_DS3500_07772000
        c. DS3950:             FW_DS3950_07772000
        d. DS5020:             FW_DS5020_07772000
     
     Note: The DCS3700/DS3500 controller firmware version 7.77.19.00 has a
     fix to prevent a potential data integrity issue involving the DS3500
     (DS3512 and DS3524) and DCS3700 cache memory Error Correcting Code
     (ECC) logic in the DS3500 storage subsystems. The DS3500 and DCS3700
     storage subsystems must be upgraded to controller firmware version
     7.77.19.00 (or later) immediately to avoid possible data integrity
     issue. In general, follow the Recommendation Firmware Levels web link
     in the IBM Support web page for your storage system model for the IBM
     controller firmware level recommendation.
       
        
     2. Storage Controller NVSRAM versions:
        
        a. DS3500:             N1746D35R0777V05.dlp (dual controller)
                               N1746D35L0777V05.dlp (single controller)
        b. DCS3700             N1818D37R0777V05.dlp
        c. DS3950:             N1814D50R0777V05.dlp
        d. DS5020:             N1814D20R0777V05.dlp
       
               
      Note: The DS3500/DS3950/DS4000/DS5000 storage subsystems shipped from
            the factory may have NVSRAM versions installed with a different
            first character prefix. Both manufacturing NVSRAM version and the
            "N" prefixed NVSRAM version are the same. You do not need to update
            your DS3950/DS4000/DS5000 storage subsystem with the "N" prefixed
            NVSRAM version as stated above. For example, the N1815D480R923V08
            and M1815D480R923V08 (or C1815D480R923V08 or D1815D480R923V08 or ...)
            versions are the same. Both versions share the same
            "1815D480R923V08" string value.

   Refer to the following IBM System Storage?Disk Storage Systems
   Technical Support web site for the latest released code levels.

   http://www.ibm.com/systems/support/storage/disk


=======================================================================

2.0   Installation and Setup Instructions
-----------------------------------------

Note: Before commencing with any firmware upgrade procedure, use the
      Storage Manager client to perform a Collect All Support Data capture.
      Save this support data capture on a system other than the one that is
      being upgraded.


The sequence for updating your Storage Subsystem firmware may be
different depending on whether you are updating an existing configuration,
installing a new configuration, or adding drive expansion enclosures.

ATTENTION: If you have not already done so, please check the Dependencies
section for ANY MINIMUM FIRMWARE REQUIREMENTS for the storage server
controllers, the drive expansion enclosure ESMs and the hard drives in the
configurations. The order in which you will need to upgrade firmware levels
can differ based on prerequisites or limitations specified in these
readme files. If no prerequisites, or limitations, are specified, the
upgrade order refered to in section 2.1 Installation For an Existing
Configuration should be observed.

If drive firmware upgrades are required, down time will need to be scheduled.
The drive firmware upgrades require that there are no Host I/Os sent to the
storage controllers during the download.

Note: For additional setup instructions, Refer to the Installation, User's
and Maintenance Guide of your storage subsystem or storage expansion
enclosures.


2.1   Installation For an Existing Configuration
-------------------------------------------------
 
1.   Upgrade the storage manager client program to the latest storage
     manager 10.77 version that is available from the IBM system storage
     support web site. Older versions of the storage manager client program
     will show that the new firmware file is not compatible with the to-be-
     upgraded subsystem, even when the existing version of the controller
     firmware installed in the DS storage subsystem is of 7.7x.xx.xx code
     thread.
    
     http://www.ibm.com/systems/support/storage/disk
    
 
2.   Download controller firmware and NVSRAM.
 
     Please refer to the IBM DS Storage Manager version 10 Installation
     and Host Support Guide for additional information.

     Important: It is possible to download the controller firmware and
                NVSRAM at the same time by selecting the option check box
                in the controller firmware download window.  However if
                you have made any setting changes to the host parameters,
                downloading NVSRAM will overwrite those changes.  These
                modifications must be reapplied after loading the new
                NVSRAM file.  You may need to update firmware and NVSRAM
                during a maintenance window.
              
     To download controller firmware and NVSRAM using the DS Storage
     Manager application, do the following:
  
     a.  Open the Subsystem Management window.
     b.  Click Advanced => Maintenance => Download => Controller Firmware
         Follow the online instructions.
     c.  Reapply any modifications to the NVSRAM. Both controllers must be
         rebooted to activate the new NVSRAM settings.
        
     To download controller NVSRAM separately, do the following:
           
     a.  Open the Subsystem Management window.
     b.  Click Advanced => Maintenance => Download => Controller => Controller
                                                                    NVSRAM.
         Follow the online instructions.
     c.  Reapply and modifications to the NVSRAM. Both controllers must be
         rebooted to activate the new NVSRAM settings.
        
3.   Update the firmware of the ESMs in the attached drive expansion
     enclosures to latest levels. (See 1.4 Dependencies)
    
     To download drive expansion ESM firmware, do the following:
  
     a.  Open the Subsystem Management window.
     b.  Click Advanced => Maintenance => Download => Environmental(ESM)
                                                      Card Firmware.
         Follow the online instructions.
        
         Note: The drive expansion enclosure ESM firmware can be updated
         online with no downtime if both ESMs in each of the drive expansion
         enclosures are functional and one (and ONLY one) drive expansion
         enclosure is selected in the ESM firmware download window for ESM
         firmware updating at a time.

         Note: SAN Volume Controller (SVC) customers are now allowed to
         download ESM firmware with concurrent I/O to the disk subsystem
         with the following restrictions.
        
         1)  The ESM Firmware upgrade must be done on one disk expansion
             enclosure at a time.
         2)  A 10 minute delay from when one enclosure is upgraded to the
             start of the upgrade of another enclosure is required.
            
         Confirm via the Storage Manager Application's "Recovery Guru"
         that the DS5000 status is in an optimal state before upgrading the
         next enclosure.  If it is not, then do not continue ESM firmware
         upgrades until the problem is resolved.

         Note: Reference IBM System Storage?Disk Storage Systems
         Technical Support web site for the current ESM firmware
         versions for the drive expansion enclosures.            
    
4.   Make any hard disk drive firmware updates as required. FAILURE to
     observe the minimum firmware requirement might cause your storage
     subsystem to be OUT-OF-SERVICE. Check the IBM System Storage?     Disk Storage Systems Technical Support web site for the latest released
     hard drive firmware if you have not already upgraded drive firmware to
     the latest supported version. (See 1.4 Dependencies)
    
     To download hard disk drive firmware, do the following:
  
     a.  Schedule down time because the drive firmware upgrades require
         that there are no HOST I/Os to be sent to the DS5000 controllers.
     b.  Open the Subsystem Management window.
     c.  Click Advanced => Maintenance => Download => Drive Firmware.
         Follow the online instructions.
         Note: with controller firmware version 06.1x.xx.xx or later,
         multiple drives from up to four different drive types can be updated
         at the same time.
 

=======================================================================

3.0 Configuration Information
-----------------------------


3.1 Configuration Settings
--------------------------

1. By default the IBM DS Storage Manager 10.77 does not automatically
   map logical drives if storage partitioning feature is enabled.
   This means that the logical drives are not automatically presented
   to host systems.

   For a new installation, after creating new arrays and logical drives;
   a. If your host type is not Windows, create a partition with your
      host type and map the logical drives to this partition.
   b. If your host type is Windows, you can map your logical drives to
      the "Default Host Group" or create a partition with a Windows host
      type.

   When upgrading from previous versions of IBM DS Storage Manager
   to version 10.70.
   a. If upgrading with no partitions created and you have an operating
      system other than Windows, you will need to create a partition
      with your host type and map the logical drives from the "Default
      Host Group" to this partition.
   b. If upgrading with Storage Partitions and an operating system other
      than Windows is accessing the default host group, you will need
      to change the default host type.  After upgrading the NVSRAM, the
      default host type is reset to Windows Server 2003/2008 non-clustered
      for DS storage server with controller firmware version 06.14.xx.xx
      or later. For DS4000 storage server with controller firmware version
      06.12.xx.xx or earlier, it is reset to Windows non-clustered (SP5 or
      higher), instead.

   Refer to the IBM DS Storage Manager online help to learn more
   about creating storage partitions and changing host types.

2. Running script files for specific configurations. Apply the
   appropriate scripts  to your subsystem based on the instructions
   you have read in the publications or any instructions in the
   operating system readme file. A description of each script is
   shown below.

   - SameWWN.scr: Setup RAID controllers to have the same World Wide
     Names. The World Wide Names (node) will be the same for each
     controller pair. The NVSRAM default sets the RAID controllers
     to have the same World Wide Names.

   - DifferentWWN.scr:  Setup RAID controllers to have different World
     Wide Names. The World Wide Names (node) will be different for each
     controller pair. The NVSRAM default sets the RAID controllers
     to have the same World Wide Names.

   - EnableAVT_W2K_S2003_noncluster.scr:  The script will enable automatic
     logical drive transfer (AVT/ADT) for the Windows 2000/Server 2003
     non- cluster heterogeneous host region. The default setting is to
     disable AVT for this heterogeneous host region. This setting is one
     of the requirements for setting up the remote boot or SAN-boot. Do
     not use this script unless it is specifically mentioned in the
     applicable instructions. (This script can be used for other host
     type if modifications are made in the script, replacing the Windows
     2000/Server 2003 non-cluster host type with the appropriate host
     type that needs to have AVT/ADT enabled)

   - DisableAVT_W2K_S2003_noncluster.scr:  The script will disable the
     automatic logical drive transfer (AVT) for the Windows 2000/Server
     2003 non-cluster heterogenous host region. This script will reset the
     Windows 2000/Server 2003 non-cluster AVT setting to the default.
     (This script can be used for other host type if modifications are
     made in the script, replacing the Windows 2000/Server 2003 non-cluster
     host type with the appropriate host type that needs to have AVT/ADT
     disabled)

   - EnableAVT_Linux.scr:  The script will enable automatic logical drive
     transfer (AVT) for the Linux heterogeneous host region. Do not use this
     script unless it is specifically mentioned in the applicable
     instructions.

   - DisableAVT_Linux.scr:  The script will disable the automatic logical
     drive transfer (AVT) for the Linux heterogeneous host region. Do not
     use this script unless it is specifically mentioned in the
     applicable instructions.

   - EnableAVT_Netware.script:  The script will enable automatic logical
     drive transfer (AVT) for the NetWare Failover heterogeneous host
     region. Do not use this script unless it is specifically mentioned in
     the applicable instructions.

   - DisableAVT_Netware.script:  The script will disable the automatic
     logical drive transfer (AVT) for the NetWare Failover heterogeneous
     host region. Do not use this script unless it is specifically
     mentioned in the applicable instructions.

   - disable_ignoreAVT8192_HPUX.script: This script will disable the DS4000
     storage subsystem ignoring of AVT requests for the HP-UX server
     specific read pattern of 2 blocks at LBA 8192. The AVT ignoring request
     for the LBA 8192 reads was implemented to prevent a possible occurrence
     of an AVT storm caused by the HP-UX server probing in the wrong order
     of available paths to the volume(s) when it detect server to LUN path
     failure. Use this script only when you do not have defined LVM mirrored
     volumes using the mapped logical drives from the DS4000 storage
     subsystems. Please contact IBM support for additional information, if
     required.

   - enable_ignoreAVT8192_HPUX.script: This script will enable the DS4000
     storage subsystem ignoring of AVT requests for the HP-UX server
     specific read pattern of 2 blocks at LBA 8192. The AVT ignoring request
     for the LBA 8192 reads was implemented to prevent a possible occurrence
     of an AVT storm caused by the HP-UX server probing in the wrong order of
     available paths to the volume(s) when it detect server to LUN path
     failure. Use this script only when you do have defined LVM mirrored
     volumes using the mapped logical drives from the DS4000 storage
     subsystems. Please contact IBM support for additional information, if
     required.


3.2 Unsupported configurations
------------------------------

   The configurations that are currently not being supported with controller
   firmware version 07.77.xx.xx in conjunction with DS Storage Manager
   version 10.77 are listed below:


   1. Any DS4200, DS4700, DS4800, DS4500, DS4400, DS4300, DS4100, FAStT500
      and FAStT200 storage subsystems configurations are not supported with
      this version of controller firmware.

   2. Fibre Channel loop environments with the IBM Fibre Channel Hub,
      machine type 3523 and 3534, in conjunction with the IBM Fibre Channel
      Switch, machine types 2109-S16, 2109-F16 or 2109-S08. In this
      configuration, the hub is connected between the switch and the IBM
      Fibre Channel RAID Controllers.

   3. The IBM Fibre Channel Hub, machine type 3523, connected to IBM
      machine type 1722, 1724, 1742, 1815, 1814, 3542 and 3552.

   4. A configuration in which a server with only one FC host bus
      adapter connects directly to any storage subsystem with dual
      controllers is not supported. The supported configuration is the
      one in which the server with only one FC host bus adapter connects
      to both controller ports of any DS storage subsystem with dual
      controllers via Fibre Channel (FC) switch (SAN-attached
      configuration.)


3.3  Helpful Hints
------------------
1. Depending on the storage subsystem that you have purchased, you may have
   to purchase the storage partitioning premium feature option or an option to
   upgrade the number of supported partitions in a storage subsystem. Please see
   IBM Marketing representatives or IBM resellers for more information.
  
2. When making serial connections to the DS storage controller, the baud
   rate is recommended to be set at 38400. Note: Do not make any connections to
   the DS3000/DS4000/DS5000 storage subsystem serial ports unless it is instructed
   by IBM Support. Incorrect use of the serial port might result in lost of
   configuration, and possibly, data.

3. All enclosures (including storage subsystems with internal drive
   slots) on any given drive loop/channel should have complete unique IDs,
   especially the single digit (x1) portion of the ID, assigned to them. For
   example, in a maximum configured DS4500 storage subsystem, enclosures on one
   redundant drive loop should be assigned with ids 10- 17 and enclosures on
   the second drive loop should be assigned with ids 20-27. Enclosure ids with
   the same single digit such as 11, 21 and 31 should not be used on the same
   drive loop/channel.

   The DS3950, DS5020, DS4200 and DS4700 storage subsystems and the EXP395,
   EXP520, EXP420, EXP810, and EXP5000 storage expansion enclosures do not have
   mechanical ID switches. These storage subsystems and storage expansion
   enclosures automatically set the Enclosure IDs. IBM recommendation is not
   make any changes to these settings unless the automatic enclosure ID settings
   resulting in non- unique single digit settings for enclosures (including the
   storage subsystems with internal drive slots) in a given drive loop/channel.

4. The ideal configuration for SATA drives is one logical drive per array and
   one OS disk partition per logical drive. This configuration minimizes the
   random head movements that increase stress on the SATA drives. As the number
   of drive locations to which the heads have to move increases, application
   performance and drive reliability may be impacted. If more logical drives are
   configured, but not all of them used simultaneously, some of the randomness
   can be avoided. SATA drives are best used for long sequential reads and
   writes.

5. Starting with the DS4000 Storage Manager (SM) host software version 9.12
   or later, the Storage Manager client script window looks for the files with
   the file type of  ".script" as the possible script command files. In the
   previous versions of the DS4000 Storage Manager host software, the script
   window looks for the file type ".scr" instead. (i.e. enableAVT.script for
   9.12 or later vs. enableAVT.scr for pre-9.12)

6. Inter-operability with tape devices is supported on separate HBA and
   switch zones.


=======================================================================

4.0   Unattended Mode
---------------------
        N/A

=======================================================================

5.0   WEB Sites and Support Phone Number
----------------------------------------

5.1  IBM System Storage?Disk Storage Systems Technical Support web site:
     http://www.ibm.com/systems/support/storage/disk

5.2  IBM System Storage?Marketing Web Site:
     http://www.ibm.com/systems/storage/disk

5.3  IBM System Storage?Interoperation Center (SSIC) web site:
     http://www.ibm.com/systems/support/storage/ssic/
    
5.4  You can receive hardware service through IBM Services or through your
     IBM reseller, if your reseller is authorized by IBM to provide warranty
     service. See http://www.ibm.com/planetwide/ for support telephone
     numbers, or in the U.S. and Canada, call 1-800-IBM-SERV (1-800-426-
     7378).

  IMPORTANT:
  You should download the latest version of the DS Storage Manager
  host software, the storage subsystem controller firmware, the
  drive expansion enclosure ESM firmware and the drive firmware at
  the time of the initial installation and when product updates become
  available.

  For more information about how to register for support notifications,
  see the following IBM Support Web page:

    www.ibm.com/systems/support/storage/subscribe/moreinfo.html

  You can also check the Stay Informed section of the IBM Disk Support
  Web site, at the following address:

    www.ibm.com/systems/support/storage/disk

=======================================================================

6.0   Trademarks and Notices
----------------------------

        6.1  The following terms are trademarks of the IBM Corporation
             in the United States or other countries or both:

                 IBM

                 DS4000
                
                 DS5000

                 FAStT

                 System Storage?
                 the e-business logo

                 xSeries

                 pSeries

                 HelpCenter

                 Microsoft Windows are trademarks of
                 Microsoft Corporation in the United States, other
                 countries, or both.

                 Java and all Java-based trademarks and logos are
                 trademarks or registered trademarks of Sun Microsystems,
                 Inc. in the United States, other countries, or both.

                 UNIX is a registered trademark of The Open Group in the
                 United States and other countries.

                 Linux is a registered trademark of Linus Torvalds.

                 Other company, product, and service names may be
                 trademarks or service marks of others.

=======================================================================

7.0   Disclaimer
----------------

        7.1  THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF
             ANY KIND. IBM DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS
             OR IMPLIED, INCLUDING WITHOUT LIMITATION, THE IMPLIED
             WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND
             MERCHANTABILITY WITH RESPECT TO THE INFORMATION IN THIS
             DOCUMENT. BY FURNISHING THIS DOCUMENT, IBM GRANTS NO
             LICENSES TO ANY PATENTS OR COPYRIGHTS.


        7.2  Note to U.S. Government Users -- Documentation related to
             restricted rights -- Use, duplication or disclosure is
             subject to restrictions set forth in GSA ADP Schedule
             Contract with IBM Corporation.



 

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