* * * READ ME * * *
             * * * Veritas Cluster Server 5.0 MP3 RP5 * * *
                         * * * P-patch 1 * * *
                         Patch Date: 2011-08-22


This document provides the following information:

   * PATCH NAME
   * PACKAGES AFFECTED BY THE PATCH
   * BASE PRODUCT VERSIONS FOR THE PATCH
   * OPERATING SYSTEMS SUPPORTED BY THE PATCH
   * INCIDENTS FIXED BY THE PATCH
   * INSTALLATION PRE-REQUISITES
   * INSTALLING THE PATCH
   * REMOVING THE PATCH


PATCH NAME
----------
Veritas Cluster Server 5.0 MP3 RP5 P-patch 1


PACKAGES AFFECTED BY THE PATCH
------------------------------
VRTSgab


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * Veritas Cluster Server 5.0 MP3 RP5
   * Veritas Storage Foundation for Oracle RAC 5.0 MP3 RP5
   * Veritas Storage Foundation Cluster File System 5.0 MP3 RP5
   * Veritas Storage Foundation High Availability 5.0 MP3 RP5
   * Veritas Storage Foundation for DB2 5.0 MP3 RP5
   * Veritas Storage Foundation for Oracle 5.0 MP3 RP5


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
AIX


INCIDENTS FIXED BY THE PATCH
----------------------------
This patch fixes the following Symantec incidents:

Patch ID: 5.0.3.510

* 2508650 (Tracking ID: 2508633)

SYMPTOM:
If the GAB driver fails to unload due to a device removal error on a 
system, and if you repeatedly try to unload the GAB driver, the system crashes.

DESCRIPTION:
When the GAB driver fails to unload due to the device removal 
error, the GAB module deletes its data structures without checking for the 
device removal error. If you try to unload the GAB driver again, the GAB module 
attempts to access the deleted data structures, and the system crashes.

RESOLUTION:
Symantec has modified the GAB module to check for the device 
removal error. If the check fails, the module does not delete its data 
structures, and the system crash is prevented.


INSTALLING THE PATCH
--------------------
INSTALLING THE PATCH IN THE VCS ENVIRONMENT
---------------------------------------
Execute the following steps on all the nodes in the VCS cluster:

Stopping VCS on the cluster node
--------------------------------
1. Take offline all applications, which are configured on CVM/CFS
   and are outside VCS control.

    After you take offline all applications that use CFS and CVM,
    run 'slibclean' to unload the libraries from memory.

2. Stop VCS on the current node:
        # /opt/VRTSvcs/bin/hastop -local
   Verify that ports 'f' (CFS), 'v' and 'w' (CVM), and 'h' (VCS) are closed:
        # /sbin/gabconfig -a
   The display must not include port 'f', 'v', 'w' and 'h'.

3. Unconfigure VxFEN if configured:
        #  /etc/init.d/vxfen.rc stop

4. Unconfigure GAB if configured:
        #  /etc/init.d/gab.rc stop

5. Unload the GAB driver:
        # /etc/methods/gabkext -stop

6. Verify that the GAB driver is unloaded:
        # /etc/methods/gabkext -status

Installing the patch
--------------------

1. Un-compress the patch downloaded from Symantec.
   Change directory to the unzipped patch location.
   Install the VRTSgab (5.0.3.510) patch by using the following command:
        # installp -a -d [extract dir]/patches/VRTSgab.rte.bff VRTSgab.rte

2. Verify that the new patch has been installed:
        # lslpp -l  VRTSgab.rte

  Fileset                      Level  State      Description
  ----------------------------------------------------------------------------
Path: /usr/lib/objrepos
  VRTSgab.rte              5.0.3.510  APPLIED    Veritas Group Membership and
                                                 Atomic Broadcast by Symantec
                                                 Veritas-5.0MP3RP5P1-08/19/11-2
                                                 3:30:00

Re-starting VCS on the cluster node
------------------------------------

1. Load the newly installed driver:
        # /etc/methods/gabkext -start

2. Configure GAB:
        # /etc/init.d/gab.rc start
   Verify that GAB is configured:
        # /sbin/gabconfig -a

3. Configure VxFEN if required:
    # /etc/init.d/vxfen.rc start
   Verify that VxFEN is up and running:
        # /sbin/gabconfig -a

4. Start VCS:
        # /opt/VRTSvcs/bin/hastart
   Verify that VCS is up and running:
        # /sbin/gabconfig -a
   The output must include ports 'h'.
   If CVM and CFS are configured, the 'f', 'v' and 'w' ports are also listed .

5. Start the applications (stopped earlier) that are outside VCS control.


REMOVING THE PATCH
------------------
Patch Uninstallation Instructions:
----------------------------------

UNINSTALLING THE PATCH FROM THE VCS ENVIRONMENT
-----------------------------------------------
The VRTSgab patch can only be backed out if it is not committed.

Steps to remove the patch from a cluster node
---------------------------------------------
1. To stop VCS on the node and unload any drivers, as required, execute
   the steps described in the "Stopping VCS on the cluster node"
   section.

2. Back out the patch by using the following command:
        # installp -r VRTSgab.rte 5.0.3.510

3. Verify that the patch is removed from the system:
(Note: The previously installed fileset(s) will be in the committed
 state again, unless a hotfix is installed on top of VCS 5.1SP1)
        # lslpp -l VRTSgab.rte

   If the patch is properly removed, the following output appears:
 
Fileset                      Level  State      Description
  ----------------------------------------------------------------------------
Path: /usr/lib/objrepos
  VRTSgab.rte              5.0.3.500  APPLIED    Veritas Group Membership and
                                                 Atomic Broadcast by Symantec
                                                 Veritas-5.0MP3RP5-05/04/11-05:
                                                 49:14


4. Restart the node by executing the steps described in the
   "Re-starting VCS on the cluster node" section.


SPECIAL INSTRUCTIONS
--------------------
NONE


OTHERS
------
NONE