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gab-sles11_x86_64-Patch-7.1.0.100
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 Basic information
Release type: Patch
Release date: 2016-09-13
OS update support: None
Technote: None
Documentation: None
Popularity: 219 viewed    31 downloaded
Download size: 3.61 MB
Checksum: 4166611551

 Applies to one or more of the following products:
InfoScale Availability 7.1 On SLES11 x86-64
InfoScale Enterprise 7.1 On SLES11 x86-64
InfoScale Storage 7.1 On SLES11 x86-64

 Obsolete patches, incompatibilities, superseded patches, or other requirements:
None.

 Fixes the following incidents:
3893802

 Patch ID:
VRTSgab-7.1.0.100-SLES11

 Readme file  [Save As...]
                          * * * READ ME * * *
     * * * Veritas Group Membership and Atomic Broadcast 7.1 * * *
                         * * * Patch 100 * * *
                         Patch Date: 2016-09-07


This document provides the following information:

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


PATCH NAME
----------
Veritas Group Membership and Atomic Broadcast 7.1 Patch 100


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
SLES11 x86-64


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


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * InfoScale Availability 7.1
   * InfoScale Enterprise 7.1
   * InfoScale Storage 7.1


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: 7.1.0.100
* 3893802 (3893801) In some cases, when a node joins a large cluster, few GAB
directed messages are delivered in the wrong order.


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

Patch ID: 7.1.0.100

* 3893802 (Tracking ID: 3893801)

SYMPTOM:
In large clusters, a node join for a gab port gets stuck.

DESCRIPTION:
When a node joins a cluster, a few GAB directed messages might be
delivered in the incorrect order to the GAB clients. This incorrect 
message order is because of a bug in code where the messages are added to the
GAB delivery queue in incorrect order.

RESOLUTION:
The program is modified to ensure that during a node join scenario,
the GAB directed messages are inserted in the various GAB queues in the correct
order.



INSTALLING THE PATCH
--------------------
Run the Installer script to automatically install the patch:
-----------------------------------------------------------
Please be noted that the installation of this P-Patch will cause downtime.

To install the patch perform the following steps on at least one node in the cluster:
1. Copy the patch gab-sles11_x86_64-Patch-7.1.0.100.tar.gz to /tmp
2. Untar gab-sles11_x86_64-Patch-7.1.0.100.tar.gz to /tmp/hf
    # mkdir /tmp/hf
    # cd /tmp/hf
    # gunzip /tmp/gab-sles11_x86_64-Patch-7.1.0.100.tar.gz
    # tar xf /tmp/gab-sles11_x86_64-Patch-7.1.0.100.tar
3. Install the hotfix(Please be noted that the installation of this P-Patch will cause downtime.)
    # pwd /tmp/hf
    # ./installVRTSgab710P100 [<host1> <host2>...]

You can also install this patch together with 7.1 base release using Install Bundles
1. Download this patch and extract it to a directory
2. Change to the Veritas InfoScale 7.1 directory and invoke the installer script
   with -patch_path option where -patch_path should point to the patch directory
    # ./installer -patch_path [<path to this patch>] [<host1> <host2>...]

Install the patch manually:
--------------------------
Install the patch manually:
--------------------------
Perform the following steps on all the nodes:
1. Take backup of your configurations
2. Stop VCS on all nodes
3. Install the patch
4. Restart VCS on

Stopping VCS on all the cluster nodes
--------------------------------

1. Ensure that the "/opt/VRTSvcs/bin" directory is included in your PATH
   environment variable so that you can execute all the VCS commands. Refer 
   to Veritas Cluster Server Installation Guide for more information.

2. Freeze all the service groups persistently.
        # haconf -makerw
        # hagrp -freeze [group] -persistent

3. If the cluster is writable, you may close the configuration before stopping the cluster. 
   Stop the cluster:
        # haconf -dump -makero

   Run the following command to stop vcs on all nodes of the cluster:
        # hastop -all
    
   Verify that the cluster is stopped by running the ha command:
        # hasys -state

   Make sure that both had and hashadow processes are stopped. Also, stop the VCS CmdServer:
        # CmdServer -stop

4. Stop the cluster services in order:
    - For AMF:
    # /etc/init.d/amf stop
    - For VxFEN:
    # /etc/init.d/vxfen stop
    - For GAB:
    # /etc/init.d/gab stop
    
    
Note: Stop any other services depending on GAB before stopping gab.

Installing the Patch
--------------------

1. Un-compress the downloaded patch from Veritas and change the directory to the uncompressed patch location.
   Install the patch using the following command:

    - For GAB:
    # rpm -Uvh VRTSgab-7.1.0.100-SLES11.x86_64.rpm

2. Run the following command to verify if the new patch has been installed:

    - For GAB:
    # rpm -q VRTSgab
        
   If the proper patch is installed, the following output is displayed:

    - For GAB:
    VRTSgab-7.1.0.100-SLES11.x86_64
                        
Re-starting the cluster services:
--------------------------------

1. To start the cluster services in order run the following command:
    - For GAB:
        # /etc/init.d/gab start
    - For VxFEN:
        # /etc/init.d/vxfen start
    - For AMF:
        # /etc/init.d/amf start
    - For VCS:
        # hastart
        # /opt/VRTSvcs/bin/CmdServer

2. Make VCS cluster writable:
         # haconf -makerw

3. Unfreeze all the groups:
         # hagrp -unfreeze [group] -persistent
         # haconf -dump -makero


REMOVING THE PATCH
------------------
Removal of the patch will result in removing the whole package
from the system/node. To go back to a previous installed version
of the package, you may need to re-install the package.
Run the following steps on the node where the patch is being uninstalled:

To remove the patch from a cluster node:
---------------------------------------------
1. Freeze all the service groups persistently.
        # haconf -makerw
        # hagrp -freeze [group] -persistent

2. Stop VCS on the node by running the following command:
    - Follow the stop sequence as mentioned in the PATCH INSTALLATION section.

3. Remove the patch by using the following command:
    - For GAB:
        # rpm -e VRTSgab



4. Verify that the patch has been removed from the system:
    - For GAB:
        # rpm -qa|grep VRTSgab
        
   Ensure that the package is not be displayed. This confirms that the package is removed.

5. Install the relevant package from the VCS base media. 
    Also refer to SORT for any applicable patches.

6. To start the cluster service, run the following command first on one node:
    - Follow the start sequence as mentioned in the PATCH INSTALLATION section.

7. Unfreeze all the groups.
         # hagrp -unfreeze [group] -persistent
         # haconf -dump -makero


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


OTHERS
------
NONE



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