The recent Sun StorageTek 6920 maintenance update addresses numerous availability and performance issues as described below.

These issues can occur on the following platforms:

• Sun StorageTek 6920 without firmware 3.0.1.22 (as delivered in patch 118396-52)
• Sun StorageTek 6120 Arrays without firmware 3.2.5 (as delivered in patch 116931-21)

To determine if this upgrade has already been successfully installed do the following:

1) generate a new extractor file and examine the output as follows:

   # more extract_6920.83aad35f_2006-06-29_131026/DSP/dsp00/show_version

   ============================
   |  COMMAND: show version
   ============================

   VINFO: version info of all images in RAM on line cards:

           Image     Revision        Date        Time      Build     Build
Card Proc  Name      PC: PSX1000                           User      Host
==== ====  ========  ==============  ==========  ========  ========  ==========
MIC  SLV   micoper   D02.02.01.0189  08/11/2006  16:14:51  clearcas  HATHOR
 6    0    nineoper  D02.02.01.0189  08/11/2006  16:18:48  clearcas  HATHOR
...

Note: The revision of all code images on the DSP should be D02.02.01.0189 08/11/2006.

2)

   # more extract_6920.83aad35f_2006-06-29_131026/Arrays/array*/commands/ver
   ============================
   |  COMMAND: ver
   ============================

  6120 Release 3.2.5 Thu Aug 24 03:28:22 PDT 2006 (192.168.0.40)
  Copyright (C) 1997-2005 Sun Microsystems, Inc.
  All Rights Reserved.

Note: The revision of all code images on the arrays should be "6120 Release 3.2.5 Thu Aug 24 03:28:22 PDT 2006".

3) The revision of the 6920 is written in the "extract_6920.83aad35f_2006-06-29_131026/Rack/etc_release" file, see the following example from another extractor:

# more extract_6920.83df964f_2006-07-27_014639/Rack/etc_release

                        Solaris 9 9/04 s9s_u7wos_09 SPARC
           Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                             Assembled 29 June 2004


                            Sun StorEdge(tm) 6920
                             Version: 3.0.1.22
                          Build Date: August 11, 2006

Note: The revision of all code images on the DSP should be D02.02.01.0189 08/11/2006.

This upgrade addresses the following issues. For precise symptoms please refer to the CR number listed below.

• Support for 4 Gig Host Adaptors (see CR 6416107)
• Support for Solaris 10 ZFS (see CR 6456312)
• Support for Solaris 10 Head of Queue tagging (see CR 6429817)
• Better handling of single drive failures on the back-end 6020's (see CR 6366175 and 6426907)
• Better remote replication performance (see CR 6379116 and 6388362)
• Better scalability for Sun Clusters (see CR 6353581 and 6384364)
• Better pcrash/core capability (see CR 6299564, 6351872,and 6372416)
• More robust rolling upgrade capability, especially for larger and remote replication configurations (see CR 6338225, 6350471, 6407686, 6419607, 6419682, 6427705, 6431030, and 6431120)
• More robust error handling of local mirror splits/rejoins (see CR 6359244, and 6437905)
• Additional internal debug/diagnostic information (see CR 6455641, 6453242, and 6441624)

There is no workaround. Please see the Resolution section below.

These issues are addressed in the following releases:

• Sun StorageTek 6920 with DSP Firmware Update patch 118396-52 or later
• Sun StorageTek 6120 with 3.2.5 Firmware Update patch 116931-21 or later

Important Notes: This Maintenance release contains the necessary patches for the SP along with the above patches.

The maintenance release is available via Storade through Patchpro or via CDROM from your local office.

Please contact your local Sun Service Center to open a service request to schedule an update. The process is the same as scheduling an install.

Please see patch READMEs for s complete list of CRs addressed in this upgrade.

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