* * * READ ME * * *
             * * * Symantec Storage Foundation HA 6.1 * * *
                        * * * Patch 6.1.0.200 * * *
                          Patch Date: 2014-02-10


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
----------
Symantec Storage Foundation HA 6.1 Patch 6.1.0.200


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
RHEL6 x86-64


PACKAGES AFFECTED BY THE PATCH
------------------------------
VRTSllt
VRTSodm
VRTSvxfs


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * Symantec Cluster Server 6.1
   * Symantec File System 6.1
   * Symantec Storage Foundation 6.1
   * Symantec Storage Foundation Cluster File System HA 6.1
   * Symantec Storage Foundation for Oracle RAC 6.1
   * Symantec Storage Foundation HA 6.1


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: VRTSvxfs-6.1.0.200-RHEL6
* 3424575 (3349651) VxFS modules fail to load on RHEL6.5
Patch ID: VRTSvxfs-6.1.0.100-RHEL6
* 3418489 (3425878) Performance degradation is seen with Smart IO feature enabled
Patch ID: VRTSodm-6.1.0.100-RHEL6
* 3424619 (3349649) ODM modules fail to load on RHEL6.5
Patch ID: VRTSllt-6.1.0.100-GA_RHEL6
* 3376505 (3410309) The LLT driver fails to load and logs a message in syslog.


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

Patch ID: VRTSvxfs-6.1.0.200-RHEL6

* 3424575 (Tracking ID: 3349651)

SYMPTOM:
VxFS modules fail to load on RHEL6.5 and following error messages are
reported in system log.
kernel: vxfs: disagrees about version of symbol putname
kernel: vxfs: disagrees about version of symbol getname

DESCRIPTION:
In RHEL6.5 the kernel interfaces for getname and putname used by
VxFS have changed.

RESOLUTION:
Code modified to use latest definitions of getname and putname
kernel interfaces.

Patch ID: VRTSvxfs-6.1.0.100-RHEL6

* 3418489 (Tracking ID: 3425878)

SYMPTOM:
I/O's pause periodically resulting in performance degradation. No
explicit error is seen

DESCRIPTION:
To avoid kernel stack overflow, work consuming a large amount of
stack space is not done in the context of the original thread.  Instead such
work items are added to a high priority work queue for processing by a set of
worker threads. In the case where all worker threads are busy, there is an issue
where newly queued work may be subjected to an additional delay in processing
which results in periodic stalls.

RESOLUTION:
High priority work items are processed by a set of dedicated worker
threads. These dedicated threads do not have an issue when all threads are busy;
so do not trigger periodic stalls.

Patch ID: VRTSodm-6.1.0.100-RHEL6

* 3424619 (Tracking ID: 3349649)

SYMPTOM:
ODM modules fail to load on RHEL6.5 and following error messages are
reported in system log.
kernel: vxodm: disagrees about version of symbol putname
kernel: vxodm: disagrees about version of symbol getname

DESCRIPTION:
In RHEL6.5 the kernel interfaces for getname and putname used by
VxFS have changed.

RESOLUTION:
Code modified to use latest definitions of getname and putname
kernel interfaces.

Patch ID: VRTSllt-6.1.0.100-GA_RHEL6

* 3376505 (Tracking ID: 3410309)

SYMPTOM:
The Low Latency Transport (LLT) driver fails to load and logs the following
message in the syslog when a mismatch is observed in the RDMA-specific symbols.
llt: disagrees about version of symbol rdma_connect
llt: Unknown symbol rdma_connect
llt: disagrees about version of symbol rdma_destroy_id
llt: Unknown symbol rdma_destroy_id

DESCRIPTION:
The LLT driver fails to load when an external OFED (OFA or MLNX_OFED) stack is
installed on a system. The OFED replaces the native RDMA-related drivers
(shipped with the OS) with the external OFED drivers. Since LLT is built against
the native RDMA drivers, LLT fails due to symbol mismatch when startup script
tries to load LLT.

RESOLUTION:
The LLT startup script is modified to detect if any external OFED is installed
on the system.
If the script detects an external OFED, then it loads a LLT driver (without the
RDMA symbols) of a non-RDMA version. Since this LLT does not contain
RDMA-specific symbols, the LLT driver successfully loads. However, the LLT
driver does not have the RDMA functionality. In this case, LLT can be used
either in Ethernet or in a UDP mode.



INSTALLING THE PATCH
--------------------
This patch can only be installed on systems running RHEL6.5 or OL6.5!

Run the Installer script to automatically install the patch:
-----------------------------------------------------------
To install the patch perform the following steps on at least one node in the cluster:
1. Copy the hot-fix sfha-rhel6_x86_64-6.1.0.200-rpms.tar.gz to /tmp
2. Untar sfha-rhel6_x86_64-6.1.0.200-rpms.tar.gz to /tmp/hf
    # mkdir /tmp/hf
    # cd /tmp/hf
    # gunzip /tmp/sfha-rhel6_x86_64-6.1.0.200-rpms.tar.gz
    # tar xf /tmp/sfha-rhel6_x86_64-6.1.0.200-rpms.tar
3. Install the hotfix
    # pwd /tmp/hf
    # ./install_sfha610_rhel6_5 [<host1> <host2>...]

Install the patch manually:
--------------------------
The patch can also be installed along with the 6.1 GA , using the the following command
./installer -prod <stack_name>   -install <server_name>   -hotfix_path <path_hoftfix> 

Usage: installer [ <system1>   <system2>  ... ]

        [ -hotfix_path <hotfix_path>   ]

        [ -hotfix2_path <hotfix2_path>   ]

        [ -hotfix3_path <hotfix3_path>   ]

        [ -hotfix4_path <hotfix4_path>   ]

        [ -hotfix5_path <hotfix5_path>   ]

The -hotfix_path option is used to define the path of a hot fix level release to be integrated with a base or a maintenance level release in order for multiple releases to be simultaneously installed.


REMOVING THE PATCH
------------------
# rpm -e <rpm-name>


KNOWN ISSUES
------------
CPI Installer "install_sfha610_rhel6_5" will have the error "CPI ERROR V-9-40-5520" 
if it's ran on non-RHEL6.5 or non-OL6.5 systems.


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


OTHERS
------
NONE