infoscale-rhel7.3_x86_64-Patch-7.0.1.200

 Basic information
Release type: Patch
Release date: 2017-08-11
OS update support: RHEL7 x86-64 Update 3
Technote: None
Documentation: None
Popularity: 3921 viewed    downloaded
Download size: 104.57 MB
Checksum: 1782274791

 Applies to one or more of the following products:
InfoScale Availability 7.0 On RHEL7 x86-64
InfoScale Enterprise 7.0 On RHEL7 x86-64
InfoScale Foundation 7.0 On RHEL7 x86-64
InfoScale Storage 7.0 On RHEL7 x86-64

 Obsolete patches, incompatibilities, superseded patches, or other requirements:

This patch supersedes the following patches: Release date
llt-rhel7.2_x86_64-Patch-7.0.1.100 (obsolete) 2016-03-16

This patch requires: Release date
infoscale-rhel7_x86_64-MR-7.0.1 2015-12-11

 Fixes the following incidents:
3500429, 3575082, 3663738, 3728110, 3851441, 3870478, 3873875, 3890658, 3905424, 3906940, 3918067, 3918899, 3921094, 3921095, 3921096, 3921097, 3924672, 3925064

 Patch ID:
VRTSvxfs-7.0.1.200-RHEL7
VRTSdbac-7.0.1.200-RHEL7
VRTSllt-7.0.1.700-RHEL7
VRTSgab-7.0.1.200-RHEL7
VRTSvxfen-7.0.1.200-RHEL7
VRTSamf-7.0.1.200-RHEL7
VRTSaslapm-7.0.1.400-RHEL7
VRTSvxvm-7.0.1.200-RHEL7

Readme file
                          * * * READ ME * * *
                      * * * InfoScale 7.0.1 * * *
                         * * * Patch 200 * * *
                         Patch Date: 2017-07-11


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
----------
InfoScale 7.0.1 Patch 200


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
RHEL7 x86-64


PACKAGES AFFECTED BY THE PATCH
------------------------------
VRTSamf
VRTSaslapm
VRTSdbac
VRTSgab
VRTSllt
VRTSvxfen
VRTSvxfs
VRTSvxvm


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * InfoScale Availability 7.0
   * InfoScale Enterprise 7.0
   * InfoScale Foundation 7.0
   * InfoScale Storage 7.0


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: VRTSvxfs-7.0.1.200
* 3905424 (3901318) VxFS module failed to load on RHEL7.3.
Patch ID: VRTSdbac-7.0.1.200
* 3924672 (3924673) 7.0.1 vcsmm module does not load with RHEL 7.3
Patch ID: VRTSamf-7.0.1.200
* 3921097 (3896877) Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7 
Update 3(RHEL7.3).
* 3873875 (3873874) Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).
* 3500429 (3860974) 32 bit OS libraries are required to be installed for AMF user
land components.
Patch ID: VRTSvxfen-7.1.0.200
* 3921096 (3896877) Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7 
Update 3(RHEL7.3).
* 3873875 (3873874) Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).
* 3851441 (3859825) In customized fencing, there is no penalty on the node which loses a race for a coordination point.
Patch ID: VRTSgab-7.0.1.200
* 3921095 (3896877) Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7 
Update 3(RHEL7.3).
* 3873875 (3873874) Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).
* 3728110 (3728106) On Linux, the value corresponding to 15 minute CPU load average as shown in /proc/loadavg file wrongly increases to about 4.
Patch ID: VRTSLLT-7.0.1.700
* 3921094 (3896877) Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7 
Update 3(RHEL7.3).
* 3918899 (3904397) System hangs during network restart because Low Latency Transport (LLT) does 
not release tagged VLAN interfaces.
* 3918067 (3918061) Veritas Infoscale Availability does not support Red Hat Enterprise Linux 6 Update 9 
(RHEL6.9).
* 3906940 (3905430) Application IO hangs in case of FSS with LLT over RDMA during heavy data transfer.
* 3890658 (3880681) Veritas Infoscale Availability does not support Red Hat Enterprise Linux 6 Update 8 
(RHEL6.8).
* 3873875 (3873874) Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).
* 3870478 (3870477) Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7
Update 2 (RHEL7.2).
* 3575082 (3567354) The Linux kernel panics when it receives a shared non-linear socket buffer (skb) for linearization from the Low Latency Transport (LLT).
* 3663738 (3663740) In a rare scenario, divide by zero error is displayed when lltshow -p command 
is run.
Patch ID: VRTSvxvm-7.0.1.200
* 3925064 (3902851) VxVM module failed to load on RHEL7.3.


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

Patch ID: VRTSvxfs-7.0.1.200

* 3905424 (Tracking ID: 3901318)

SYMPTOM:
VxFS module failed to load on RHEL7.3.

DESCRIPTION:
Since RHEL7.3 is new release therefore VxFS module failed to load
on it.

RESOLUTION:
Added VxFS support for RHEL7.3.

Patch ID: VRTSdbac-7.0.1.200

* 3924672 (Tracking ID: 3924673)

SYMPTOM:
7.0.1 vcsmm module does not load with RHEL 7.3

DESCRIPTION:
Since RHEL 7.3 is new release therefore vcsmm module failed to load
on it.

RESOLUTION:
The VRTSdbac package is re-compiled with RHEL 7.3 kernel (3.10.0-514.el7.x86_64)
in the build environment to mitigate the failure.

Patch ID: VRTSamf-7.0.1.200

* 3921097 (Tracking ID: 3896877)

SYMPTOM:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7 
Update 3(RHEL7.3).

DESCRIPTION:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 
versions later than RHEL7 Update 2.

RESOLUTION:
Veritas Infoscale Availability support for Red Hat Enterprise Linux 7 Update 
3(RHEL7.3) is now introduced.

* 3873875 (Tracking ID: 3873874)

SYMPTOM:
Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).

DESCRIPTION:
Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 
versions later than SLES 12.

RESOLUTION:
Veritas Infoscale Availability now supports SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).

* 3500429 (Tracking ID: 3860974)

SYMPTOM:
32 bit OS libraries are required to be installed for AMF user land
components.

DESCRIPTION:
AMF package ships 32 bit user land binaries and libraries, hence 32
bit OS libraries are required to be installed for AMF.

RESOLUTION:
AMF package now ships 64 bit user land binaries and libraries.

Patch ID: VRTSvxfen-7.1.0.200

* 3921096 (Tracking ID: 3896877)

SYMPTOM:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7 
Update 3(RHEL7.3).

DESCRIPTION:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 
versions later than RHEL7 Update 2.

RESOLUTION:
Veritas Infoscale Availability support for Red Hat Enterprise Linux 7 Update 
3(RHEL7.3) is now introduced.

* 3873875 (Tracking ID: 3873874)

SYMPTOM:
Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).

DESCRIPTION:
Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 
versions later than SLES 12.

RESOLUTION:
Veritas Infoscale Availability now supports SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).

* 3851441 (Tracking ID: 3859825)

SYMPTOM:
In customized fencing, when one or more coordination points become unreachable at the time of network partition, its possible that 
no sub-cluster wins a race. This might lead to cluster becoming unavailable.

DESCRIPTION:
In some rare cases of customized fencing, the cluster might become unavailable in case of network partition. This occurs if few 
coordination points (less than majority) are not available at the time of network partition and the sub-clusters end up winning few 
coordination points (less than majority) out of the rest each at the time of fencing race.

RESOLUTION:
The code is modified so that the likelihood of one sub-cluster winning all coordination points is increased. This is implemented 
by imposing a time penalty on the node which loses the race for a coordination point.

Patch ID: VRTSgab-7.0.1.200

* 3921095 (Tracking ID: 3896877)

SYMPTOM:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7 
Update 3(RHEL7.3).

DESCRIPTION:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 
versions later than RHEL7 Update 2.

RESOLUTION:
Veritas Infoscale Availability support for Red Hat Enterprise Linux 7 Update 
3(RHEL7.3) is now introduced.

* 3873875 (Tracking ID: 3873874)

SYMPTOM:
Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).

DESCRIPTION:
Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 
versions later than SLES 12.

RESOLUTION:
Veritas Infoscale Availability now supports SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).

* 3728110 (Tracking ID: 3728106)

SYMPTOM:
On Linux, the value corresponding to 15 minute CPU load average increases to about 4 even when clients of GAB are not running and the CPU usage is relatively low.

DESCRIPTION:
GAB reads the count of currently online CPUs to correctly adapt the client heartbeat timeout with the system load. Due to an issue, it accidentally overwrites the kernel's load average value. As a result, even though the actual CPU usage does not increase, the value
that is observed from /proc/loadavg for the 15 minute CPU load average is 
increased.

RESOLUTION:
The code is modified so that the GAB module does not overwrite the kernel's load average value.

Patch ID: VRTSLLT-7.0.1.700

* 3921094 (Tracking ID: 3896877)

SYMPTOM:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7 
Update 3(RHEL7.3).

DESCRIPTION:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 
versions later than RHEL7 Update 2.

RESOLUTION:
Veritas Infoscale Availability support for Red Hat Enterprise Linux 7 Update 
3(RHEL7.3) is now introduced.

* 3918899 (Tracking ID: 3904397)

SYMPTOM:
System hangs during network restart because system is waiting for LLT to 
release tagged VLAN interfaces.

DESCRIPTION:
During network restart, tagged VLAN interfaces are destroyed resulting in a 
NETDEV_UNREGISTER event. LLT configured over VLAN interfaces does not 
release interface references resulting in system freeze during network 
restart.

RESOLUTION:
LLT module is modified to detach VLAN interfaces during a NETDEV_UNREGISTER 
event and attach those VLAN interfaces during a NETDEV_REGISTER event.

* 3918067 (Tracking ID: 3918061)

SYMPTOM:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 6 Update 9 
(RHEL6.9).

DESCRIPTION:
Veritas Infoscale Availability does not support RHEL versions later than RHEL6
Update 8.

RESOLUTION:
Veritas Infoscale Availability support for Red Hat Enterprise Linux 6 Update 9
(RHEL6.9) is now introduced.

* 3906940 (Tracking ID: 3905430)

SYMPTOM:
Application IO hangs in case of FSS with LLT over RDMA during heavy data transfer.

DESCRIPTION:
In case of FSS using LLT over RDMA, sometimes IO may hang because of race conditions in LLT 
code.

RESOLUTION:
LLT module is modified to fix the race conditions arising due to heavy load with multiple 
application threads.

* 3890658 (Tracking ID: 3880681)

SYMPTOM:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 6 Update 8 
(RHEL6.8).

DESCRIPTION:
Veritas Infoscale Availability does not support RHEL versions later than RHEL6
Update 7.

RESOLUTION:
Veritas Infoscale Availability support for Red Hat Enterprise Linux 6 Update 8
(RHEL6.8) is now introduced.

* 3873875 (Tracking ID: 3873874)

SYMPTOM:
Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).

DESCRIPTION:
Veritas Infoscale Availability does not support SUSE Linux Enterprise Server 
versions later than SLES 12.

RESOLUTION:
Veritas Infoscale Availability now supports SUSE Linux Enterprise Server 12 
Service Pack 1 (SLES 12 SP1).

* 3870478 (Tracking ID: 3870477)

SYMPTOM:
Veritas Infoscale Availability does not support Red Hat Enterprise Linux 7
Update 2 (RHEL 7.2).

DESCRIPTION:
Veritas Infoscale Availability 7.0 did not support RHEL 7.1 and later versions.

RESOLUTION:
Veritas Infoscale Availability 7.0.1 now supports Red Hat Enterprise Linux 7
Update 2 (RHEL 7.2).

* 3575082 (Tracking ID: 3567354)

SYMPTOM:
Low Latency Transport (LLT) observes a kernel panic on receiving a
shared non-linear skb.

DESCRIPTION:
When LLT receives a shared non-linear skb from the network driver,
it passes the skb to the kernel for linearization. Since the skb is shared
between multiple owners, the kernel cannot linearize it, which causes a system panic.

RESOLUTION:
The code is modified such that on receiving a non-linear skb, LLT
validates if the skb is shared. If the validation is true, then the kernel
clones the skb, returns the cloned skb to LLT, and decreases the reference count
of the original skb. Further, LLT passes the cloned skb to the kernel for
linearization.

* 3663738 (Tracking ID: 3663740)

SYMPTOM:
In a rare scenario, the system shows a divide by zero error and
generates a core dump when the lltshow -p command is run.

DESCRIPTION:
If a variable value becomes zero under certain conditions and
lltshow p is run at the same time to get the port statistics, the system shows a divide by zero error.

RESOLUTION:
The code is modified to skip printing the batch upcall latency
average when the batch count is zero.

Patch ID: VRTSvxvm-7.0.1.200

* 3925064 (Tracking ID: 3902851)

SYMPTOM:
VxVM module failed to load on RHEL7.3.

DESCRIPTION:
Since RHEL7.3 is new release therefore VxVM module failed to load
on it.

RESOLUTION:
Added VxVM support for RHEL7.3.



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 infoscale-rhel7_x86_64-Patch-7.0.1.200.tar.gz to /tmp
2. Untar infoscale-rhel7_x86_64-Patch-7.0.1.200.tar.gz to /tmp/hf
    # mkdir /tmp/hf
    # cd /tmp/hf
    # gunzip /tmp/infoscale-rhel7_x86_64-Patch-7.0.1.200.tar.gz
    # tar xf /tmp/infoscale-rhel7_x86_64-Patch-7.0.1.200.tar
3. Install the hotfix(Please be noted that the installation of this P-Patch will cause downtime.)
    # pwd /tmp/hf
    # ./installVRTSinfoscale701P200 [<host1> <host2>...]

You can also install this patch together with 7.0.1 maintenance release using Install Bundles
1. Download this patch and extract it to a directory
2. Change to the Veritas InfoScale 7.0.1 directory and invoke the installmr script
   with -patch_path option where -patch_path should point to the patch directory
    # ./installmr -patch_path [<path to this patch>] [<host1> <host2>...]



REMOVING THE PATCH
------------------



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


OTHERS
------
NONE