This README file contains the latest information about the IBM TotalStorage™ 
DS4100 Midrange disk system controller firmware version 05.42.xx.xx for the 
DS4100 storage subsystems with Single Controller Option.

Refer to the IBM TotalStorage™ Support Web Site or CD for the IBM 
DS4000 Storage Manager Version 9 Installation and Support Guides for 
Windows 2000/Server 2003, Netware, ESX Server, and Linux or the IBM 
DS4000 Storage Manager Version 9 Installation and Support Guides for 
AIX, HP-UX, Solaris and Linux on POWER. This guide along with the 
DS4000 Storage Manager "Online Help" provide the installation 
and support information.

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

Last Update:  10/17/2005

Products Supported: 

      ----------------------------------------------------
     |            | Machine Type |     Model              | 
     |------------|--------------|------------------------|
     | DS4100     |              |                        |
     | single     |     1724     | 1SC (1S_)              |
     | controller |              |                        |
     |------------|--------------|------------------------|
     | EXP100     |     1710     | 10U, 10X               |
      ----------------------------------------------------
     The three character model of the DS4100 single controller 
     midrange disk system starts with the characters 1S 
     (like 1SC for example). The machine type of the DS4100 
     single controller is 1724.     

  Attention: 
  The DS4100 midrange disk system controller firmware file version 
  05.42.22.00 and its associated NVSRAM file must be used ONLY for the 
  DS4100 with Single Controller Option - machine type 1724 model 1SC. 
  This version of the firmware shall not be loaded on any DS4000 
  midrange disk systems other than the DS4100 1SC single controller 
  model. 
  In addition, even though the any versions of IBM TotalStorage™ 
  DS4000 Storage Manager from 08.42.x or higher can be used for 
  managing the DS4100 midrange disk systems, it is recommended to 
  upgrade the DS4000 Storage Manager host software to the latest 
  version posted in the IBM TotalStorage Support Web Site for the 
  IBM DS4000 midrange disk systems.
   
     http://www.ibm.com/servers/storage/support/disk/  
  
  
NOTE 
   1. The version of the currently support controller firmware for 
      the DS4100 (FAStT100) with dual controllers (Standard/Base option) 
      - M/T 1724/model 100 - is 06.12.xx.xx.
     
      All future maintenance releases for DS4100 dual controller model 
      controller firmware will be with version 06.12.xx.00 controller 
      firmware levels.
   
      See IBM TotalStorage Support web site for further details on 
      migrating the DS4100 dual controller model from controller 
      firmware 05.42.xx to 06.12.xx.00 level.
     
      
   2. The DS4100 with single controller option - M/T 1724/ model 1SC/1S_  
      will continue to be supported with 05.42.xx The controller in this 
      model cannot be migrated to 06.12.xx.xx controller firmware level.
  
=======================================================================
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
------------

   This IBM Storage Manager release includes support for the IBM 
   DS4100 midrange disk system controller firmware and NVSRAM files 
   version 05.42.xx.xx for the following IBM machine type 1724 - 
   model 1SC (the DS4100 storage subsystems with single controller 
   option). 
      
   Refer to the IBM TotalStorage™ Support Web Site or CD for the 
   IBM DS4000 Storage Manager Version 9 Installation and Support 
   Guides 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 and Solaris. 
   This guide along with the DS4000 Storage Manager Online Help 
   provides the installation and support information. 

   The DS4100 with single controller option (M/T1724, model 1SC/1S_) 
   supports IBM DS4000 Copy Services premium features FlashCopy only. 
   It does not support the DS4000 Copy Services premium features 
   VolumeCopy and Remote Mirroring at this time. Please contact 
   your IBM representatives or resellers for availability date 
   of support.
    
   The DS4000 storage partitioning premium feature is not standard on 
   IBM DS4100 with single controller option. Please contact IBM 
   Marketing representatives or IBM resellers if you want to purchase 
   the IBM DS4000 storage partitioning premium feature option for it. 

   The IBM DS4000 Storage Manager Version 9 is shipped with IBM 
   DS4100 midrange disk system. 

   Refer to the IBM TotalStorage Support Web Site for the latest 
   firmware and NVSRAM files for the IBM DS4000 midrange disk 
   systems.
   
     http://www.ibm.com/servers/storage/support/disk/

==================================================================
1.1 Limitations
---------------

Limitations with version 05.42.22.00 controller firmware 
maintenance release and previous releases.

1. Do not cut and paste the information in the DS4000 Storage 
   Manager Version 9 online help into the DS4000 Storage Manager 
   script command window or into the text file that will be used as 
   input for the SMcli script engine. Extra space may be inserted in 
   the required parameter names which will cause error(s) during the 
   script command execution. (IBM problem record 267873)
 
2. Currently, IBM does not support Gold key Premium Feature as a 
   chargeable upgrade. The Gold key Premium Feature is enable or 
   disable depending on the DS4000 midrange disk system models.

3. The Asynchronous Remote Mirroring utility, asyncRVMUtil, is not
   supported. This utility is used to automatically synchronize the 
   logical drives in the Remote Mirroring pairs. Please contact IBM 
   representatives or resellers for the support of this utility in 
   the future.

4. DS4000 Storage Manager prompts you for a password if all hard 
   disk drives are removed from the storage subsystem.

   After removing all drives from a storage subsystem or if drives   
   do not have power but the controller power is on. The IBM DS4000 
   Storage Manager will prompt you for a password when trying to 
   start the software or when attempting to perform protected 
   operations. Any password entered will fail.

   Password information is stored on a reserved area of each hard 
   disk drive on the storage subsystem. Each drive stores a 
   mirrored copy of the password data. When there are no drives 
   in the disk system, the storage management software does 
   not find the password data when you attempt password protected 
   operations. Add one drive to the disk system and retry the 
   operation.
   
   If the DS4000 controller unit has power, then turn power off 
   the controller unit. The DS4000 controller unit shall not be 
   powered on until the EXP expansion units are attached and 
   powered on. Properly attach all expansion units (with drives 
   installed), to the DS4000 controller unit and apply power to 
   the EXP. The controller can now be powered on.  At this point 
   the midrange disk system can be re-discovered and managed using 
   the IBM DS4000 Storage Manager.

5. Auto LUN/Array Transfer is not enable for IBM AIX and SUN Solaris 
   operating systems. If arrays failover to an alternate controller 
   and the failed controller is replaced and then brought back online, 
   the arrays do not automatically transfer to the preferred 
   controller. The operation must be done manually by selecting 
   the redistributing arrays menu option in the storage subsystem 
   window of the IBM DS4000 Storage Manager.

6. If you get "Error 21 - The operation cannot complete because a 
   ...  is in progress" error when you issue a Subsystem Management 
   command from the IBM DS4000 Storage Manager, the command may be 
   cached. If the command is cached, the IBM DS4000 Storage Manager 
   will run the command as soon as the controller resources are 
   available. Wait for at least ten minutes and check to see 
   whether the command has been run. If not, re-attempt the 
   command. 
                       
7. The DS4100 disk system when configured with the DS4000 EXP100 
   SATA Drive Expansion Unit is currently reporting a higher 
   frequency of informational events such as Destination Driver 
   Events (DDEs) and fibre channel link up/down events in the 
   controller major event log compared to a DS4000 midrange 
   disk system configured with fibre channel drives. 
   
   Slower response times of SATA disk drives compared to fibre 
   channel disk drives cause higher I/O retries from the DS4100 
   controller, resulting in a greater number of informational 
   events logged. 
   
   The number of information events reported in the system event 
   log will continue to grow in proportion to data transfer to   
   and from the logical drives. In all cases, the DS4100 
   controller will always successfully service the timeout I/O 
   on the subsequent retries. 
   
8. The DS4000 Copy Service Remote Mirroring and VolumeCopy features 
   are not supported at this time for DS4100 midrange disk 
   systems.
 
9. It may take up 12 minutes for the DS4100 to recover after an 
   AC power brown-out event.
   
10. When connecting DS4000 drive expansion enclosures to the DS4100 
   midrange disk system, ensure that the unit digits(x1) of the 
   drive expansion enclosure IDs are set to unique values. 
   
11. IBM does not support the conversion an existing DS4100 single
   controller (DS4100 model 1S_) to a DS4100 dual controller 
   DS4100 model 100)and vice versa. 
   Please contact IBM resellers or representatives for support 
   in the future.

12. There is not support for migrating arrays between a DS4100 
   single controller setup (DS4100 model 1S_) and a DS4100 dual 
   controller setup (DS4100 model 100)and vice versa. 
   Please contact IBM resellers or representatives for such 
   support in the future.

13. There is no support for drive port in the DS4100 single 
    controller CRU. The DS4100 model 1S_ does not support 
    DS4000 EXP100 drive expansion enclosures. 
    Please contact IBM resellers or representatives for such 
    support in the future.

14. In Microsoft cluster, MSCS configurations, the MSCS service 
    must be stopped and set to manual start after server is 
    rebooted. The Clusdisk driver must be set to offline and the 
    Windows server must be rebooted before uninstalling the RDAC 
    driver in the server. 
    
    If the Clusdisk driver is not set to offline and the MSCS 
    service is not set to manual start, the MS cluster service 
    will not start after the new RDAC driver is installed. 
    The cluster cannot bring the Quorum disk resources online because 
    the disk signature changes caused the problem. 
    The workaround is stated in the first sentence of this 
    paragraph.
    
    To recover from this problem, you must:
     
    1. Look up the old disk signatures of the disk that are defined 
       as cluster disk resources. They could be found either in 
       the registry under the 
HKLM/System/CurrentControlSet/Services/Clusdisk/Parameters/Signatures
       registry key or in the cluster.log file.
    2. Look up the new disk signatures of the disks that are 
       defined as cluster disk resources using the dumpcfg 
       utility that is packaged in the Microsoft Windows resource 
       kit. 
    3. Compare the new and old disk signatures. If new disk 
       signature did not match the old signature, you have to 
       change the new disk signature to the old disk signature 
       values by using the dumpcfg command. The syntax of the 
       command is:
       
       dumpcfg.exe -s <old-signature> <Disk#>     
       For example, dumpcfg.exe -s 12345678 0 

15. In a SAN boot configuration, before updating the Windows RDAC 
    driver in a Windows server, one of the two Fibre Channel (FC) 
    cables that are connected to the server must be disconnected. 
    The Windows server will blue screen during the reboot after the 
    un-installation of the RDAC driver if one of the FC cables 
    is not removed. (IBM problem record 258127)

16. When connecting the EXP100 enclosures, one must set the single 
    digit (X1) of the enclosure ID to unique values. This will  
    prevent the possibility that the controller has the same ALPA 
    as one of the drives in the EXP100 enclosures. This can occur under 
    certain DS4100 controller reboot scenarios. 
   

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

    This is a maintenance release of the controller firmware for the 
    DS4100 storage subsystems with single controller option. Please 
    refer to the section 2.1 - Version history for the list of defects 
    that were fixed in this release.    


=======================================================================
            
1.3 Prerequisites
-----------------
     
   - DS4100 midrange disk systems with controller firmware 
     version 05.42.xx.xx.
   - DS4000 EXP100 storage expansion enclosures with ESM firmware 
     version 95xx or higher. 

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

   ATTENTION:
   DS4100 MIDRANGE DISK SYSTEM CONTROLLER FIRMWARE VERSION 
   05.42.XX.XX REQUIRES THAT THE FIRMWARE VERSION OF AN ATTACHED 
   EXP100 ENVIRONMENTAL SERVICE MODULE (ESM) BE VERSION 95XX OR 
   HIGHER. 
   IT IS NOT POSSIBLE TO UPGRADE EXP100 ESM FIRMWARE VERSIONS 
   THROUGH 953X TO VERSIONS 955X or higher. 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 95XX 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 95XX 
   OR HIGHER IF IT HAD BEEN PREVIOUSLY UPGRADED. IF NECESSARY, 
   CONTACT YOUR IBM REPRESENTATIVE, SUPPORT, OR RESELLER FOR 
   ASSISTANCE. 
   
   IBM DS4000 Storage Manager Version 8.42 or higher provides 
   full management IBM machine type 1724 (DS4100) storage 
   subsystems that have at least firmware version 05.42.xx.xx.
  
  
====================================================================

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

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

2.1 Version history.
 
This is the latest maintenance release of IBM DS4000 TotalStorage™
controller firmware / NVSRAM for the following DS4000 midrange 
disk system models: DS4100 Single controller model.

Version 05.42.22.00 10/17/2005
  IBM 
  Problem
  Record  Abstract 
  ------  ------------------------------------------------
86156 (86138) Ancient I/O (mode select I/O) 
85741 (85628) Problem: Controller repeatedly reboots during DVE. The
              controller get a data abort fault when more than 2 volumes
              are performing DVE.
              Fix: The volume number array was increased to handle more
              then 2 volume numbers.
85956 (85799) Problem: Storage Manager lost communication with the 
              array after controller was taken out of the controller 
              cluster.
              Fix: Schedule the parity scan for all volumes at once.           
86196 (82668) Problem: Controller firmware allowed the Volume Group 
              to be greater then 2TB.
              Fix: Corrected calculation of reserved DACstore area.
86205 (85917) (CMVC 266752) Problem: Excessive Email Notifications.
              Fix: Break out of a code loop after posting MEL event
              so that event will not be posted multiple times.
86331 (85820) Problem: Controller A is attempting to fail a drive and
              attempting to suspend volume activity only it can't 
              get the controller B to quiesce.
              Fix: Placed a limit on how long a controller should wait
              attempting to quiesce volumes.
86492 (86424) Problem: Error that happens when an integrated GHS drive
              is replaced by the original spared drive but copyback to 
              the volumes in the volume group is interrupted by a drive
              spinning down.
              Fix: Reset a flag for all volumes that might have 
              completed operations when it has been determined that
              the "spared for" drive is failed.
86927 (84579) Problem: When an ASV_GET_PART_INFO message is received,
              a memory fault occurs.
              Fix: Initialized the partHdr variable in function 
              asvReceiveMessage.
87023 (86609) Problem: PANIC when inserting a drive that contains 
              invalid volume number.
              Fix: Call legacyVolumePresentEvent for valid volumes.
87048 (86915) Problem: Controllers using Flash chips exhibit a slow
              erase cycle causing timeout during an ACS operation.
              Fix: Increased timeout value to 5 seconds. Use worst
              case timeout value for all types of flash devices.
87115 (86996) Problem: ST3400832AS drive download can take longer then
              the default ATA download timeout of 30 seconds.
              Fix: Increase ATP timeout to 180 seconds.
87225 (86949) Determine correct parameter data from NVSRAM option. 
87262 (83924) Added inquiry and common names for SATA drives to 
              hddCommonNames table. Spindle speed is not reported
              by 05.42.x firmware.
87549 (86998) Problem: DS4100 controller, the drive firmware to the 
              400GB SATA drives was being terminated early due to an 
              8 second timeout value. Inability to download to Seagate
              400GB SATA drives.
              Fix: Increase timeout value from 8 seconds to 3 minutes.
87706         Problem: I/O timeout for SATA drives is set to 30 
              seconds but the DS4100 local SATA driver is only allowing
              10 seconds for I/Os to complete.
              Fix: Changed SATA_DRIVE macro to check for SATA drive
              support.
87777 (87720) (86427) Problem: Ancient I/O (mode select I/O).
              Fix: Retried lockMgr master/slave negotiation if 
              alternate controller lockMgr had not been initialized.
88091         Problem: Excessive printfs recorded for each error on 
              SATA drives which are installed in DS4100 unit.
              Printfs caused timeouts on I/Os issued to SATA drives
              in expansion drawers.
              Fix: Only call sataDumpCDB and sataDumpRegs if 
              sataloDebug variable is set.
88191 (88120) Problem: Controller does not finish SOD. LockMgr change
              to role negotiation left lockMgr in an partially 
              uninitialized state.
              Fix: Added check for alternated controller missing status.
88617         Problem: Media Scan effectively disabled for volumes at 
              or near 2TB. For RAID5 volumes at or near 2TB or RAID1
              volumes greater than 1TB, a media scan rate calculation
              overflows and effectively disables media scan.
              Fix: Changed the capacity variable to 64 bit.
88719         Problem: A SATA error was returned that had the CRC 
              error bit set in addition to a more severe error. The
              path should have been failed, but was only blocked.
              Fix: Added the sataDoErrorRetry routine to replace the 
              SATA_RETRY macro.
89185 (88852) (CMVC 266827) Problem: Mode Sense for caching pages 
              (page 8) did not comply with SCSI-3 specification.
              Fix: Changed the data returned for commands to conform
              with the specification. Increased the data from
              12 to 20 bytes and initialized the data values 
              appropriately.            
89215 (89079) Problem: Release commands issued before good status 
              returned from a reserve.
              Fix: Implemented locking in the release command path to
              prevent the processing of a release until the reserve
              is finished.
89509 (88825) Problem: 18GB of free capacity appears in the middle of
              a volume group.
              Fix: Clear leftover copyback pieces from replaced drive
              numDescPieces == 0 prior to putting regular pieces back
              replaced drive when copyback completes.
89547 (86537) (Caliber 5221) Define a bit in NVSRAM for "volume not 
              on preferred path". 
              1) Report an informational MEL event instead of critical event.
              2) Prevent assertion of SYMbol NeedsAttention.
              3) Prevent return of RecoveryGuru information.
89595 (84063) Never ending (ssmTimer): WARN: HDD does not find lunInf
89770 (88390) NVSRAM layout capability accross all DS4000 models and 
              releases. nvsramLayout.cfg file consistency.
90223 (88260) Problem: Ancient I/O with several volume copy operations.
              Resource contention only occurs when several volume
              copy operations are active at the same time.
              Fix: Changed vdRead to distinguished between volume 
              copy I/O and real host I/O so that "fairness" can be 
              attained.
90282 (90179) (CMVC 275409) Problem: Controller lock down due to 
              PCI errors.
              Fix: Change lockdown behavior. No longer locking down on 
              PCI master aborts that are not associated with other 
              significant PCI errors. Controller boards will lockdown 
              if 3 PCI master aborts occur within 24 hours. 

Version 05.42.18.02 07/15/2005 
  
  IBM 
  Problem
  Record  Abstract 
  ------  ------------------------------------------------
  88617   Media Scan effectively disabled for volumes at or near 2TB
  88719   CRC error on SATA drive forces retry
  87706   Drive timeout value is too small
  88091   Excessive error printfs for SATA drive can cause timeouts

       
Version 05.42.18.00 03/18/2005 (March, 2005 maintenance release)
  
  IBM 
  Problem
  Record  Abstract 
  ------  ------------------------------------------------
  260503  Storage Partition feature key changed after firmware upgrade 
          and reboot
  265068  Media Scan not running on all LUNs
  260610  DACstore scrub loops with media scan enabled on one LUN
  266752  Email Notification flood from Service Alert
  274465  Clearing reservation doesn't set key length
  hlpct_53446 Free space decreased after delete logical volumes
  269899  81850 Duplicate Solaris with DMP host type available while 
                using DS4100 with 05.42.10.00
  269900  82742 The controller creates a volume that is smaller than 
                the requested size
  269901  82744 The rawCapacity field of the VolumeCandidate should 
                be RAID-factored max capacity rather than actual raw
                capacity
  269902  82976 82452 FC drive failing causes dirty
  269903  83561 83520 Memory fault in ssmTimer after excessive bad
                characters
  269904  83612 Power Lines Disturbance causes Acorns to lockup on 
                DS4100 controller
  269905  83704 Download flags left set after firmware download fails
  269906  83736 83514 During ESM CSB FW Download Test Controller Drive 
                Tray
  269907  83837 82874 Controller panic in SOD routines
  269908  85249 84075 IO and sysReboot [StressX] test failed with max
                volumes
  269909  85537 82793 The battery age is not updated when reading 
                the profile from the GUI interface on DS4500.
  269910  85731 84886 Read Capacity command returns the new capacity 
                before the expansion of a volume is completed
  269911  85753 85456 Data corruption after large VolGrp with 2 luns
  269912  84892 84378 Potential IO/drive/tray failure is possible due
                to ESM/mapping failures 
  269146  83015 77888 76811 Microsoft SCSIPort driver sets a bit in
                the second byte of Read Capacity CDB which is a 
                reserved bit. CDB validation should ignore this bit
                and process the command without error. 
  269914  84627 82306 DBM Blockset mismatch occurred during triple 
                fault test, drive failure, controller reset and 
                failover. Array experienced an exception.
  269915  84745 83625 Bad record entry in DBM during watchdog test           
  269917  81491 No MEL entry when fan is removed from DS4100 
                controller or Drive Enclosure with firmware 
                05.42.10.00.
  269932  81667 Alarm sounds with no fault light and not faults in 
                MEL log during firmware download with additional 
                drive enclosures attached          
  269919  83329 82259 (increase buf-t) The array controller has 
                exhausted buf-t structures
  269920  79824 70279 Divide by zero error while executing 
                _cfgSetLunScrubRate. The controller was trying to set
                the scrub rate on a volume that was in a "closed"
                state.
  269921  80084 79485 79298 Data corruption occurred after spindown 
                of GHS drive during copy back followed shortly by 
                reset of the controller.
  269922  80220 73883 Drive firmware download failure in DS4100/iSATA
                combination.      
  269923  80468 80110 Data corruption reported during Failover and DSS   
  269924  80595 59651 Subsequent drive failure may cause the 
                controller to use an incorrect "replaced" marked drive.
  269925  80715 80081 79269 PANIC: DBM block set mismatch  
  269926  80756 78907 Data corruption while running I/O to flashcopy 
                on fastt600 where the LBA in the head and tail did 
                match as expected  
  269927  80938 Support for Hitachi 400GB SATA drive   
  269928  81164 fcdevs option 2 and 5 do not display Hitachi drives 
                properly      
  269929  81570 81151 Getting a bcmWriteVPD failure using the MAPI 
                command mfgVPDSet for Power Supply or Midplane VPD
                data
  269930  82012 71065 ESM firmware download on DS4500 caused IO 
                timeout to a drive. An alternate path is attempted
                but the error flags were not cleared. This error 
                results in controller reboot and Destination Driver
                Events in the MEL and an "Ancient IO reboot" message
                in the exception log.
  hlpct_51223   82169 78999 Mirror relationship becomes out of sync 
                 when path is broken between switch ISL
  269931  82234 82107 HP-UX LVM read causes continuous AVTs when 
                controller is rebooted. LVM scans all available paths
                using a read of LBA 8192 for 2 blocks which causes
                continuous AVTs. 
  275769  82285 The array controller has exhausted its structures for 
                handling IOs 
  

Version 05.42.10.00 - 11/24/2004 
      - Provides support for the DS4100 Single Controller models (1S_) 
      - Support for the increase in the maximum number of EXP100 drive 
        expansion enclosures that can be connected to a DS4100 
        midrange disk system.
        The maximum EXP100 drive enclosure that can be connected to 
        DS4100 is now 7 instead of 4.     

    IBM Problem
    Record     Abstract 
    -------  -------------------------------------------------
     79260  78101 76791 Fixed data corruption problem 
     79485  79298 Fix data corruption occurred after spindown of GHS  
     79591  79573 Fix multiple controllers go into PCI lockdown 
                  in a large number 
     79704  79212 Fix data corruption during triple fault test 

Version 05.42.06.00 - 6/25/2004 
     240352 76754 Fix ancient I/Os 
     242386 78004 Fix RAID1 remained degraded after a drive pull 
                  and replacement
     238953 78355 76490 Fix Host IO Read Errors 
     78669        Fix IOS IOCTL problem
     244474 78170 Fix multiple drive failures problem during power 
                  cycling 

    - 05.42.03.0x - 6/18/2004 initial release 
      - Support for IBM TotalStorage DS4100 midrange disk system.
    
====================================================================
        
2.2 Code levels at time of release are as follows
-------------------------------------------------
                                      
     1. Controller firmware versions (CD):
     
        The controller firmware file that is included in this CD 
        release package can be used to install in a DS4100 
        midrange disk system only.
        
          DS4100 Model 1S_ (1SC):  SNAP_05422200.dlp
          
          
     2. Storage Controller NVSRAM versions:
        The controller NVSRAM file that is included in this web release
        package can be used to install in a DS4100 only.
 
          DS4100 Model 1S_ (1SC):  N1724F10LR842V01.dlp
                 
                                    
   Refer to the IBM TotalStorage™ Support web site for the latest 
   released code levels.
   http://www.ibm.com/servers/storage/support/disk
   
=====================================================================
              
3.0 Installation and Setup Instructions
---------------------------------------

3.1 ATTENTION: 
    a. The DS4100 with single controller does not support any drive 
       expansion enclosure attachment.
    b. The controller firmware version 05.42.xx.xx should not be loaded 
       into the DS4100 with dual controllers (M/T 1724, model 100). The 
       latest version of the controller firmware in the 06.12.xx.xx 
       firmware thread should be used instead.
       
    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.
       
3.2 After the controller firmware and NVSRAM is updated, consider
    checking the IBM TotalStorage™ Support web site for the 
    latest released drive expansion enclosure ESM firmware and 
    the Fibre Channel or SATA hard drive firmware. 
    http://www-1.ibm.com/servers/storage/support/index.html
     
   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.

   To download hard disk drive firmware, do the following: 
   
   a. Open the Subsystem Management window. 
   b. Click Advanced => Download => Drive Firmware. 
      Follow the online instructions.
      

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

1. The ideal configuration for SATA drives is one drive in each 
   EXP100 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.
 
2. IBM recommends 1 hot spare per DS4100 disk system unit or 
   EXP100 drive expansion enclosure. 

3. If you are unable to see the maximum number of drives during 
   automatic configuration, you should be able to use manual 
   configuration to select individual drives and select the maximum 
   number of drives allowed.

4. Depending on the storage subsystem that you have purchased, you
   may have to purchase the DS4000 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.
   
5. 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 midrange disk 
   system serial ports unless it is instructed by IBM Support. 
   Incorrect use of the serial port might result in lost of 
   configuration, and possibly, data. 

6. SAN 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, 
   the zoning requirement also ensures the maximum number of host 
   connections can be seen and log into the controller FC host port. 
   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 DS4100 midrange disk system (IBM machine type 1724) 
         has two ports per controller.
      
7. Always connect the power supplies of the DS4100 and its drive 
   expansion enclosures to separate power circuits to maximize 
   protection against lost of power. 
   Please refer to the IBM TotalStorage DS4100 Installation, User's 
   and Maintenance Guide for more information and power on and power
   off sequence requirement for the DS4100.

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

4.0 Configuration Information
-----------------------------
        
4.1 Configuration Settings
--------------------------

1. By default the IBM DS4000 Storage Manager Version 9 client, the 
   controller 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. 
   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 default host type is reset to Windows NT. 
              
   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 1724 midrange disk 
   system as boot devices, contact IBM support for supported 
   configurations and instructions for configuring LUNs as 
   operating system 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 DS4100 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 DS4100 controllers to have different 
     World Wide Names. The World Wide Names (node) will be different 
     for each controller pair. The NVSRAM default sets the DS4100 
     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 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 heterogeneous 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.     
     
=======================================================================

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

   The following lists configurations that are currently not being 
   supported with IBM DS4000 Storage Manager 8.42 or higher.

   1. The intermixing of DS4000 EXP100 (SATA), EXP710 and EXP700 
      fibre channel drive expansion enclosures in the same DS4100 
      midrange disk system is not supported. 

   2. The DS4000 EXP100 storage expansion enclosure with ESM firmware 
      version 953x and earlier should not be connected to the DS4100
      disk system. In addition, the DS4100 disk system will not 
      be able to upgrade the EXP100 enclosures from the 953X version 
      to the required 955x or higher versions.
   
   3. The IBM Fibre Channel Hub, machine type 3523, connected to IBM 
      machine type 1722, 1724, 1742, 3542 and 3552.

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

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

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

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

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

   6.2 IBM TotalStorage™ Disk Storage Systems: Overview 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
       IBM Directory of worldwide contacts

  IMPORTANT: 
  You should download the latest version of the DS4000 Storage 
  Manager software, the DS4000 disk system 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: 
  
  http://www-1.ibm.com/servers/storage/support/index.html
  
  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 disk system 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:

               DS4000
              
               IBM
               
               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.


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

8.0 Disclaimer
--------------

        8.1 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.


        8.2 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.
