This README file contains the latest information about the  IBM TotalStorage™ 
DS4000 storage subsystem controller firmware version 06.15.15.xx for the 
DS4800 storage subsystem only. ATTENTION: DO NOT DOWNLOAD THIS CONTROLLER 
FIRMWARE ON ANY OTHER DS4000 STORAGE SUBSYSTEM MODEL. 

Refer to the IBM TotalStorage™ Support Web Site or CD for the IBM DS4000 
Storage Manager version 9 (Intel or Unix Operating Systems) Installation 
and Support Guides for firmware and NVSRAM download instructions.

For other related publications (refer to Related Publications in the 
installation and support guide) and the latest information and updated 
readme file.

Last Update:   08/30/2005 

Products Supported: 

    ----------------------------------------------------------------
   | New Model  | Old Model | Machine Type |     Model              |
   |------------|-----------|--------------|------------------------|
   |  DS4800    |           |     1815     | 82A, 82H, 84A, 84H     |
   |            |           |              | 88A, 88H               |
    ----------------------------------------------------------------

Notes: 
  1. The DS4000 storage subsystem controller firmware version 06.14.xx.xx
     and 06.15.xx.xx with its associated NVSRAM file ARE NOT AVAILABLE for 
     the following DS4000 storage subsystems - DS4100 with Standard (base) or 
     Single controller option (M/T 1724-all models), the DS4300 with Standard 
     (base), Turbo, or Single Controller options (M/T 1722-all models), the 
     DS4400 (M/T 1742-all models) the DS4500 (M/T 1742-all models), the 
     FAStT200 (M/T 3542-all models), and FAStT500 (M/T 3552-all models).
      
     Please contact your IBM service representative or IBM resellers for 
     availability of additional DS4000 storage subsystem models support with 
     controller firmware version 6.14.xx.xx or 6.15.xx.xx in the future. 
  2. For the DS4100 with Standard (base) option (M/T 1724-100), the DS4300 
     with Standard (base) or Turbo options (M/T 1722-models 60x), the DS4400 
     (M/T 1742-all models) and the DS4500 (M/T 1742-all models), the 
     controller firmware version 06.12.xx.xx and its associated NVSRAM file 
     must be used. DO NOT ATTEMPT TO DOWNLOAD the controller firmware version 
     06.14.xx.xx or 06.15.x.xx into these DS4000 storage subsystems.
  3. For the DS4100 storage subsystems with Single Controller option, the 
     controller firmware version 05.42.xx.xx and its associated NVSRAM file 
     must be used. DO NOT ATTEMPT TO DOWNLOAD the controller firmware version 
     06.1x.xx.xx into these DS4100 storage subsystem with single controller 
     option models.
  4. For the DS4300 storage subsystems with Single Controller option, the 
     controller firmware version 05.34.xx.xx and its associated NVSRAM file 
     must be used. DO NOT ATTEMPT TO DOWNLOAD the controller firmware version 
     06.1x.xx.xx into these DS4300 storage subsystem with single controller 
     option models.                           
  5. For the FAStT200 (M/T 3542-all models) and FAStT500 (M/T 3552-all models)
     storage subsystems, the controller firmware version 05.30.xx.xx and its 
     associated NVSRAM file must be used. DO NOT ATTEMPT TO DOWNLOAD the 
     controller firmware version 06.1x.xx.xx into these DS4000 storage 
     subsystems.
  

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


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

   The IBM TotalStorage™ DS4000 storage subsystem controller firmware version 
   06.15.15.xx release includes the DS4000 storage subsystem controller 
   firmware and NVSRAM files for the following IBM machine types - 1815 
   models 82A, 82H, 84A, 84H, 88A and 88H.
   
   The IBM TotalStorage DS4000 Storage Manager version 9 Installation and 
   Support Guide for Windows 2000/Server 2003, Netware, ESX Server, and 
   Linux or the IBM TotalStorage DS4000 Storage Manager version 9 
   Installation and Support Guide for AIX, HP-UX, Solaris, and Linux on 
   Power are available on IBM's Support Web Site as a downloadable 
   Portable Document Format (PDF) file. 

   In addition, the DS4000 FC/SATA intermix premium features and the 
   DS4000 Copy Services premium features - FlashCopy, VolumeCopy and 
   Enhanced Remote Mirroring - are options purchased separately. 
 
   The DS4800 Storage partitioning premium feature is standard on all DS4800 
   storage subsystem models. The 82H, 84H and 88H models shipped with 8 
   storage partitions. For 82A, 84A and 88A models, the user will have to 
   select one of the following choices - 8, 16 or 64 partitions. For models 
   with less than 64 partitions, Storage Partition upgrade kits are available 
   for upgrading them to 64 storage partitions.

   The DS4000 Storage Controller firmware 06.15.15.xx for this release is 
   available ONLY for the IBM machine types 1815-all models (DS4800). 
   The DS4000 Storage Controller firmware 06.15.15.xx for this release is 
   not available for all models of the following IBM machine types - 1724, 
   1722, 1742, 3542 or 3552. However, the IBM DS4000 Storage Manager 9.15 
   host software for this release will manage all DS4000 storage subsystem 
   with the controller firmware 04.01.xx.xx or newer. But, any new 
   features and updates that are introduced in this DS4000 Storage Manager 
   version 9.15 will not be available for any DS4000 storage subsystem 
   controllers without the controller firmware version 06.15.xx.xx 
   installed.

   Refer to the IBM Support Web Site for the latest Firmware and NVSRAM 
   files and DS4000 Storage Manager host software for the IBM DS4000 
   Storage Subsystems.
   
   http://www.ibm.com/servers/storage/support/disk/

=======================================================================
1.1  Limitations
---------------------
IMPORTANT:
The listed limitations are cumulative. However, they are listed by the 
DS4000 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. 

New limitations with version 06.15.15.xx release.

   There are not any limitations for controller firmware version 
   6.15.xx.xx. Please refer to the README files that are packaged with the 
   IBM DS4000 host software version 9.15 packages for various DS4000 
   support operating systems for host software related limitations.

New limitations with version 06.15.11.xx release.

   There are not any limitations for controller firmware version 
   6.15.xx.xx. Please refer to the README files that are packaged with the 
   IBM DS4000 host software version 9.15 packages for various DS4000 
   support operating systems for host software related limitations.

New limitations with version 06.14.19.xx release.

   There are not any limitations for controller firmware version 
   6.14.xx.xx. Please refer to the README files that are packaged with the 
   IBM DS4000 host software version 9.14 packages for various DS4000 
   support operating systems for host software related limitations.



=======================================================================
                
1.2  Enhancements
-----------------

   With this version 06.15.15.xx of controller firmware, the controllers in 
   the DS4800 storage subsystems (machine type 1815 - all models) utilize all 
   of the available data cache memory installed in each controller blade for 
   I/O caching. Previously with controller firmware version 06.14.xx.xx, the 
   DS4800 controllers used only the first 1G bytes of the installed data 
   cache memory per controller for I/O caching. In addition, a new model of 
   the DS4800 storage subsystem with 8G of cache per controller is also 
   supported with this controller firmware version.

   Please refer to the New Features section of the IBM DS4000 Storage 
   Manager version 9 Installation and Support Guide for the appropriate 
   host server operating system environment for additional information 
   about the IBM DS4000 Storage Manager version 9 enhancements.

   
=======================================================================
            
1.3  Prerequisites
------------------

     The DS4000 controller firmware and NVSRAM file that are packaged 
     with this README file can ONLY be loaded in the following DS4000
     storage subsystems:
     
     - DS4800 storage subsystems 
     
     DO NOT DOWNLOAD this controller firmware on any other DS4000 storage 
     servers. There is not any checking for this restriction inside the 
     DS4000 storage manager client program. In addition, the procedure to 
     recover the DS4000 storage subsystem that was inadvertently loaded 
     with this firmware file will require downtime to the DS4000 storage
     subsystem. Also see next section - Dependencies. 

=======================================================================
            
1.4  Dependencies
-----------------

   ATTENTION:
 
   1. DS4000 storage subsystem CONTROLLER FIRMWARE VERSION 06.1X.XX.XX 
      REQUIRES THAT THE FIRMWARE VERSION OF AN ATTACHED EXP100 
      ENVIRONMENTAL SERVICE MODULE (ESM) BE AT VERSION 955X OR HIGHER. IT 
      IS NOT POSSIBLE TO UPGRADE EXP100 ESM FIRMWARE VERSIONS THROUGH 
      953X TO VERSION 955X. TO DETERMINE THE FIRMWARE LEVEL OF AN EXP100 
      ESM, IDENTIFY THE PRODUCT LABEL LOCATED AT THE REAR OF THE EXP100 
      ENCLOSURE. ONLY LABELS ON WHICH THE FIELD REPLACEABLE UNIT (FRU) 
      PART NUMBER READS 25R0156 POSITIVELY INDICATE THAT AN ESM MODULE IS 
      RUNNING FIRMWARE VERSION 955X OR HIGHER. IF THERE IS NO LABEL OR 
      THE PART NUMBER ON THE LABEL DOES NOT READ 25R0156, THE ESM MAY 
      STILL HAVE THE FIRMWARE VERSION 955X OR HIGHER IF IT HAD BEEN 
      PREVIOUSLY UPGRADED. IF NECESSARY, CONTACT YOUR IBM REPRESENTATIVE, 
      SUPPORT, OR RESELLER FOR ASSISTANCE.
            
   2. The only DS4000 storage subsystems that are supported by the 
      06.14.xx.xx or 06.15.xx.xx controller firmware version are the DS4800. 
      Currently, there are not any controller firmware packages version 
      06.14.xx.xx or 06.15.xx.xx for other DS4000 storage subsystems besides 
      the DS4800. Do not download this controller firmware on any other 
      DS4000 storage subsystems.

   3. 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 DS4000 drive expansion enclosure ESM, the DS4000 
      storage subsystem controller and the hard drive firmware.

   4. The DS4800 storage subsystems do not support the attachment of the 
      DS4000 EXP700 drive expansion enclosures. The EXP700 enclosure must 
      be upgraded into DS4000 EXP710 enclosure using the DS4000 EXP700 
      Models 1RU/1RX Switched-ESM Option Upgrade Kit before it can be 
      attached to the DS4800 storage subsystems.


   IBM DS4000 Storage Manager host software version 09.15.xx.xx provides 
   full management support for IBM machine types 3552 and 3542 storage 
   controllers that have at least firmware version 04.01.xx.xx 
   (05.xx.xx.xx in Microsoft Windows environment), IBM Machine type 1742-
   900 and 1742 storage controllers that have at least firmware version 
   05.00.04.xx, IBM Machine type 1722 storage controllers that have at 
   least firmware version 05.3x.xx.xx or IBM Machine type 1815 storage 
   controllers that have at least firmware version 06.14.xx.xx.
    
   The only IBM DS4000 Storage Manager version 09.1x.xx.xx supported 
   management function on controllers with non-supported controller 
   firmware versions is controller firmware and NVSRAM download. 

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

2.0   Change History
-----------------------------

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

2.1   Version History
-----------------------------

This is the latest release of IBM DS4000 TotalStorage™ controller 
firmware/NVSRAM for the DS4800 storage subsystems.

 Version 06.15.15.xx dated 08/30/2005
    - Support for the new DS4800 storage subsystems model 88A/H with 8G of
      controller cache per controller.

 Version 06.15.11.xx dated 6/28/2005
    - Enable support for controller cache memory above 1G for the DS4800
      storage subsystems (M/T 1815 - all models) 
 
 Version 06.14.29.xx dated 5/16/2005 
    - Support for the DS4800 storage subsystems (M/T 1815-models 82A/H, 84A/H) 

       
=======================================================================
        
2.4 Code levels at time of release are as follows
-------------------------------------------------

     1. Storage Controller Firmware versions:
	      a. DS4800:  FW_DS4800_06151500
           
        Note: The same firmware file can be used for upgrading the 
        controller firmware through the SMClient GUI or through the 
        controller serial port. Do not attempt to download the firmware 
        through serial port without the present of IBM Support personnel. 
        A botched controller firmware download via the serial port can 
        cause to the controller to be inoperable. 
                                            
     2. Storage Controller NVSRAM versions:                    
        a. DS4800:  N1815D480R914V05
       
                                          
   Refer to the following IBM TotalStorage™ Disk Storage Systems 
   Technical Support web site for the latest released code levels.
  
   http://www.ibm.com/servers/storage/support/disk/
   
=======================================================================
              
3.0   Installation and Setup Instructions
-----------------------------------------

ATTENTION: If you have not already done so, please check the Dependencies 
section for ANY MINIMUM FIRMWARE REQUIREMENTS for the DS4000 storage 
server controllers, the drive expansion enclosure ESMs and the hard drives 
in the DS4000 configurations before upgrading the controller firmware. 
Make any firmware updates as required BEFORE proceeding to upgrade the 
DS4000 controller with the firmware and NVSRAM files packaged with this 
README file. FAILURE to observer the minimum firmware requirement might 
cause your DS4000 storage subsystem to be OUT-OF-SERVICE.  

3.1  Updated the firmware of the ESMs in the attached drive expansion
     enclosures to latest levels before the upgrading the controller 
     firmware.     
     
     To download drive expansion ESM firmware, do the following: 
   
     a.  Open the Subsystem Management window. 
     b.  Click Advanced => Download => Environmental(ESM) Card Firmware. 
         Follow the online instructions.
         
         Note: If the existing controller firmware in the DS4000 storage 
         server is of version 05.30.xx.xx or higher, 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: The latest ESM firmware versions for EXP100 and EXP710
     drive expansion enclosures are 9554 and 9631, respectively.

	

3.2  Important: You must install the firmware update prior to downloading  
                the NVSRAM update.

     To download firmware, do the following: 
   
     a.  Open the Subsystem Management window. 
     b.  Click Storage Subsystem => Download => Firmware. 
         Follow the online instructions.

     To download NVSRAM, do the following: 
   
     a.  Open the Subsystem Management window. 
     b.  Click Storage Subsystem => Download => NVSRAM. 
         Follow the online instructions.
       
3.3  (if applicable) Enable the FC/SATA intermix premium feature using 
     the premium key file.

3.4  After the controller firmware and NVSRAM is updated, consider
     checking the IBM TotalStorage™ Disk Storage Systems Technical Support 
     web site for the latest released hard drive firmware. 
     
     To download hard disk drive firmware, do the following: 
   
     a.  Schedule down time because the drive firmware upgrades require that 
         there are no HOST IOs to be sent to the DS4000 controllers.
     b.  Open the Subsystem Management window. 
     c.  Click Advanced => 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. 
      

=======================================================================
                                
3.2  Helpful Hints 
------------------

1. IBM DS4800 storage subsystem (machine type 1815): Depending on the 
   models, the 1815 storage subsystem is either shipped with 8 storage 
   partitions (model 82H/84H/88H) or with a user selected 8, 16 or 64 storage 
   partitions (model 82A/84A/88A). If the subsystem is ordered with less than 
   64 partitions, an upgrade from 8 to 16, 8 to 64 or 16 to 64 partition 
   storage partitioning premium feature option can be purchased.

2. When making serial connections to the DS4000 Storage controller, the 
   baud rate is recommended to be set at either 38200 or 57600. Note: Do 
   not make any connections to the DS4000 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. Fabric topology zoning requirement. To avoid possible problem at the 
   host level, it is best practice that all Fibre Channel (FC) Switches 
   must be zoned such that a single FC host bus adapter can only access 
   one controller per storage array. In addition, this zoning requirement 
   also ensures the maximum number of host connections can be seen and 
   log into the controller FC host port. This is because if a FC HBA port 
   is seen by both controller A and B host ports, it will be counted as 
   two host connections to the storage subsystem - one for controller A 
   port and one for controller B port.
   
   Note: The DS4000 storage subsystems DS4500, DS4400 and FAStT500 (IBM 
   machine type 1742 and 3552) have two ports per controller - one per 
   minihub slot. The DS4000 storage subsystems DS4300 (IBM machine type 1722) 
   and DS4100 (IBM machine type 1724) have two ports per controller. The 
   DS4000 storage subsystem FAStT200 (IBM machine type 3542) has only one 
   port per controller. The DS4800 (IBM machine type 1815) has 4 ports per 
   controller.

4. All drive enclosures on any given loop should have complete unique ID's 
   assigned to them. For example, in a maximum configured DS4500 storage 
   server, enclosures on one redundant drive loop should be assigned with 
   id's 10-17 and enclosures on the second drive loop should be assigned 
   with id's 20-27. Enclosures id's 00 ~ 09 should not be used and 
   enclosure id's with the same single digit such as 11 and 21 should not 
   be used on the same drive loop.    
     
5. The ideal configuration for SATA drives is one drive in each EXP per 
   array, 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.

6. IBM recommends at least one hot spare per EXP100 drive expansion enclosure.
   A total of 15 hot-spares can be defined per DS4000 storage subsystem 
   configuration.
   
7. 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)

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


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

4.0 Configuration Information
-----------------------------

        
4.1 Configuration Settings
--------------------------

1. By default the IBM DS4000 Storage Manager 9.15 firmware 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 NT, create a partition with your 
      host type and map the logical drives to this partition. 
   b. If your host type is Windows NT, you can map your logical drives to 
      the "Default Host Group" or create a partition with a NT host type.   
                                 
   When upgrading from previous versions of IBM DS4000 Storage 
   Manager to version 9.15. 
   a. If upgrading with no partitions created and you have an operating
      system other than Windows NT,  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 NT 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 2000/Server 2003 non-clustered 
      for DS4000 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 DS4000 Storage Manager online help to learn
   more about creating storage partitions and changing host types.

2. When you are configuring IBM machine type 1815 storage subsystems as
   boot devices, contact IBM support for supported configurations and 
   instructions for configuring LUNs in the IBM storage subsystems as boot 
   devices. 

3. 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.

   - EnableDriveMigration.scr:  The Enable drive migration script
     scans the drives for configurations when they are added to a 
     storage system and will also attempt to use configurations found
     on the newly added drives. The NVSRAM default will enable drive
     migration.

   - DisableDriveMigration.scr:  The disable drive migration script 
     allows the addition of disk drives while the system is running.
     In addition, it identifies the drives as unused capacity 
     regardless of past drive configuration. The NVSRAM default will
     enable drive migration.
   
   - EnableAVT_W2K_S2003_noncluster.scr:  The script will enable automatic
     logical drive transfer (AVT/ADT) for the Windows 2000/Server 2003 
     non- cluster heterogenous host region. The default setting is to 
     disable AVT for this heterogenous 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 heterogenous 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 heterogenous 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.     
     
4. When you are configuring IBM machine type 1815 storage controllers 
   in host cluster Remote Mirror configurations, contact IBM support for 
   supported host cluster configurations and instructions for configuring 
   IBM storage controllers in clustered Remote Mirror configurations. 

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

4.2 Unsupported configurations
------------------------------

   The following lists configurations that are currently not being 
   supported with IBM DS4000 Storage Manager 9.15.


   1. The DS4800 storage subsystem (machine type 1815 - all models) does
      not support the attachment of the FAStT EXP500 and DS4000 EXP700 (FC)
      drive expansion enclosures.   

   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-S8. 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, 3542 and 3552.
   
   4. A configuration in which a server with only one FC host bus 
      adapter connects directly to any DS4000 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 DS4000 storage subsystem with dual 
      controllers via Fibre Channel (FC) switch (SAN-attached 
      configuration.)


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

5.0   Unattended Mode
---------------------
        N/A

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

6.0   WEB Sites and Support Phone Number
----------------------------------------

   6.1  IBM TotalStorage™ Disk Storage Systems Technical Support web site:
        http://www.ibm.com/servers/storage/support/disk/

   6.2  IBM TotalStorage™ Marketing Web Site:
        http://www.ibm.com/servers/storage/disk

   6.3  If you have any questions about this update, or problem
        applying the update go to the following HelpCenter World
        Telephone Numbers URL:
        http://www.ibm.com/planetwide

  IMPORTANT: 
  You should download the latest version of the DS4000 Storage Manager 
  host software, the DS4000 storage subsystem controller firmware, the DS4000
  drive expansion enclosure ESM firmware and the drive firmware at the 
  time of the initial installation and when product updates become 
  available. To be notified of important product updates, you must first 
  register at the IBM Support and Download Web site: 
  
  www-1.ibm.com/servers/storage/disk/
  
  Perform the following steps to register at the IBM Support and Download 
  Web site: 
  
  1. Click on My Support in the Additional Support box in the right side 
     of the DS4000 Support web page.
  2. The Sign In window displays. Either enter your IBM ID and Password 
     in the sign in area to sign in and proceed to step 6 or, if you are 
     not currently registered with the site, click Register Now. 
  3. The My IBM Registration window Step 1 of 2 opens. Enter the 
     appropriate information and click Continue to get to the second My 
     IBM Registration window. 
  4. In the My IBM Registration window Step 2 of 2, enter the appropriate 
     information and click Submit to register. 
  5. The My IBM Registration windows opens with the following message, 
     “Thank you for registering with ibm.com. Continue to explore ibm.com 
     as a registered user.” Click Edit Profile in the My IBM box on the 
     right side of the window. 
  6. The My Support window opens. Click Add Products to add products to 
     your profile. 
  7. Use the pull-down menus to choose the appropriate DS4000 storage 
     server and expansion enclosures that you want to add to your profile.
     To add the product to your profile, select the appropriate box or 
     boxes next to the product names and click Add Product. 
  8. Once the product or products are added to your profile, click 
     Subscribe to Email folder tab 
  9. Select Storage in the pull down menu. Select Please send these 
     documents by weekly email and select Downloads and drivers and 
     Flashes to receive important information about product updates. 
     Click Updates. 
 10. Click Sign Out to log out of My Support.
 
=======================================================================

7.0   Trademarks and Notices
----------------------------

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

                 IBM
                 
                 DS4000
                 
                 FAStT
                 
                 ToTalStorage™ 

                 the e-business logo

                 xSeries
                 
                 pSeries

                 HelpCenter

                 Microsoft, Windows, and Windows NT 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.

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

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