Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• New Function
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of z/VM using the IBM TotalStorage *
  *                 DS8000 ( D/T2107 ) subsystem.                *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  This APAR provides support for the IBM TotalStorage DS8000
  ( D/T2107 ) subsystem for z/VM V4R4 and Z/VM V5R1 in 3990 mode.
  
  The IBM TotalStorage DS8000 is designed to provide unmatched
  functionality, flexibility, and performance for enterprise
  disk storage.  The DS8000 enables the creation of multiple
  storage LPARs (logical partitions).  These storage LPARS can be
  used for completely separate production or test environments
  in a single physical DS8000. This may enable the purchase of
  one storage server where more than one may have been needed
  in the past. The DS8000 also provides up to six times the
  throughput of an ESS Model 800, which may enable workload
  consolidation into a single storage subsystem.
  

Problem conclusion

Temporary fix

• *********
  * HIPER *
  *********
  FOR RELEASE VM/ESA CP/ESA R440 :
  PREREQ: VM63445
  CO-REQ: NONE
  IF-REQ: NONE
  FOR RELEASE VM/ESA CP/ESA R510 :
  PREREQ: VM63560 VM63553 VM63548
  CO-REQ: NONE
  IF-REQ: NONE
  

Comments

• Support for the IBM DS8000 TotalStorage ( D/T2107 ) subsystem
  is added to z/VM.  Specifically, the following was done:
  
  - Code was added to support the DS8000 in D/T3990 controller
    mode.  The control unit must be defined in IOCP as a 3990.
  
  - Code was added to support the ESS unit check consolidation
    architecture which consolidates global failover unit checks
    into one per LSS (instead of one per device).
  
  - Code was added to the SET EDEVICE command and EDEVICE
    configuration file statement processing to allow a new '2107'
    attribute name to be used for SCSI devices defined on the
    DS8000.
  
  - Code was added to exploit the QDIO chained SBAL architecture
    within VM's SCSI device driver.  This improves performance
    by drastically increasing the data throughput allowed on a
    single call to the device driver.
  
  - Code was added to support a 3390 model 9 disk defined up to
    65520 cylinders in size, with exception of CMS and GCS which
    will allow access to a 3390 model 9 up to 32767 cylinders.
    Minidisks greater than 32767 cylinders in size are ineligible
    for minidisk cache'.
  
  - Code was added to support the definition of SCSI FCP disks
    up to near 1TB (or exactly 2,147,483,640 512-byte blocks)
    in size.  If a disk this size is necessary, it is recommended
    that it be defined as 1023.9G on the ESS hardware console
    (i.e. 268,409,241 pages or 2,147,273,928 512-byte blocks).
    The maximum size for FBA SCSI disks supported for use by CMS
    or GCS is 381 GB.
  
  
  The file VM63534 MEMO contains the publication hits that go
  along with this support.
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UM31301 UM31302

Modules/Macros

• CPSYNCHK EDEVICE  HCPCM2   HCPCUIBK HCPDDP
  HCPDTE   HCPDVTYP HCPEDEV  HCPERX   HCPGDS   HCPIAX   HCPICU
  HCPIDT   HCPIFI   HCPIIO   HCPIOD   HCPIORBK HCPIQM   HCPMDP
  HCPMD3   HCPMD5   HCPOM1   HCPPRF   HCPRDEV  HCPRDX   HCPRP
  HCPSCFBK HCPSDU   HCPSDV   HCPSHOBK HCPSZA   HCPSZATR HCPSZC
  HCPSZF   HCPSZM   HCPSZP   HCPSZREQ HCPSZV   HCPZSR   HCWAIXQ2
  HCWAIXQ3 HCWAI3   HCWAI4   HCWAI5   HCWAI6   HCWAI7   HCWAI8
  HCWAI9   HCWA10   HCWA11   HCWA12   HCWA16   HCWZZZ   VM63534
  

Publications Referenced

GC24603004	GC24611901	SC24608101	SC24608301	SC24607300
SC24607800	SC24609100

Fix information

• Fixed component name

  VM CP

• Fixed component ID

  568411202

Applicable component levels

• R440 PSY UM31301

     UP04/12/28 P 0501

• R510 PSY UM31302

     UP04/12/23 P 0501

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

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Product categories:

Software

Operating System

z/VM family

APARs - z/VM environment

Operating system(s):

z/VM

Software version:

430

Reference #:

VM63534

IBM Group:

IBM Server Group

Modified date:

2005-05-26