* * * READ ME * * *
                  * * * Veritas File System 7.1 * * *
                         * * * Patch 100 * * *
                         Patch Date: 2018-04-12


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 File System 7.1 Patch 100


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


PACKAGES AFFECTED BY THE PATCH
------------------------------
VRTSvxfs


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


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: 7.1.0.100
* 3943316 (3939224) Removing file on VxFS hangs on latest release of AIX TL.


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

Patch ID: 7.1.0.100

* 3943316 (Tracking ID: 3939224)

SYMPTOM:
Removing file on VxFS hangs on latest release of AIX TL.

DESCRIPTION:
On latest version of aix TL (7.1 TL5sp1 and 7.2 latest TL), IBM has done some 
major changes in unlinking code path where they expect vnode list should be terminated with 
NULL. But VxFS initialize vnode's next to itest which was causing dead loop when removing file.

RESOLUTION:
Code is modified such that vnode's next is terminated with NULL.



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 fs-aix-Patch-7.1.0.100.tar.gz to /tmp
2. Untar fs-aix-Patch-7.1.0.100.tar.gz to /tmp/hf
    # mkdir /tmp/hf
    # cd /tmp/hf
    # gunzip /tmp/fs-aix-Patch-7.1.0.100.tar.gz
    # tar xf /tmp/fs-aix-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
    # ./installVRTSvxfs710P100 [<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:
--------------------------
AIX maintenance levels and APARs can be downloaded from the
    IBM Web site:
        http://techsupport.services.ibm.com
    Install the VRTSvxfs.bff patch if VRTSvxfs is
    already installed at fileset level 7.1.0.000
    A system reboot is recommended after installing this patch.
    To apply the patch, first unmount all VxFS file systems,
    then enter these commands:
        # mount | grep vxfs
        # cd patch_location 
        # installp -aXd VRTSvxfs.bff VRTSvxfs
        # reboot


REMOVING THE PATCH
------------------
Run the Uninstaller script to automatically remove the patch:
------------------------------------------------------------
To uninstall the patch perform the following step on at least one node in the cluster:
    # /opt/VRTS/install/uninstallVRTSvxfs710P100 [<host1> <host2>...]

Remove the patch manually:
-------------------------
If you need to remove the patch, first unmount all VxFS
    file systems, then enter these commands:
        # mount | grep vxfs
        # installp -r VRTSvxfs 7.1.0.100
        # reboot


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


OTHERS
------
NONE