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Advisory: (Revised) HPE 3PAR StoreServ Storage - Array Host Disconnects While Running VMware vSphere 5.5 Update 2 and Later

SUPPORT COMMUNICATION - CUSTOMER ADVISORY

Document ID: c05228694

Version: 3

Advisory: (Revised) HPE 3PAR StoreServ Storage - Array Host Disconnects While Running VMware vSphere 5.5 Update 2 and Later
NOTICE: The information in this document, including products and software versions, is current as of the Release Date. This document is subject to change without notice.

Release Date: 2016-08-16

Last Updated: 2018-05-25


DESCRIPTION

Document Version
Release Date
Details
3
25 May 2018
Updated the Description to include current HPE 3PAR OS versions and arrays. Updated the resolution to include new versions and workaround.
2
6 September 2016
Added HPE 3PAR OS 3.2.1 EMU3 Patch 45 to the Resolution section
1
8 August 2016
Original Document Release

VMware vSphere 5.5 Update 2 and later vSphere versions (including 6.x) connecting to HPE 3PAR StoreServ Storage arrays may experience host disconnects due to a low timeout value on the host for the Datastore heartbeat of Atomic Test and Set (ATS). A delay of 16 seconds or more for an individual ATS heartbeat I/O anywhere in the SAN infrastructure can result in a host disconnect from the storage.

VMware has indicated that the following observations are an indication this issue has been encountered:

  • An ESXi 5.5 Update 2 or ESXi 6.x host loses connectivity to VMFS Datastores
  • In the /var/run/log/vobd.log file and Virtual Center Events, you see the following VOB message:
    Lost access to volume <uuid><volume name> due to connectivity issues. Recovery attempt is in progress and the outcome will be reported shortly
  • In the /var/run/log/vmkernel.log file, you see the following message:
    ATS Miscompare detected between test and set HB images at offset XXX on vol YYY
  • You see error messages indicating an ATS miscompare similar to the following in /var/log/vmkernel.log:
    2015-11-20T22:12:47.194Z cpu13:33467)ScsiDeviceIO: 2645: Cmd(0x439dd0d7c400) 0x89, CmdSN 0x2f3dd6 from world 3937473 to dev&#34;naa.50002ac0049412fa&#34; failed H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0

SCOPE

This issue affects VMware hosts running VMware 5.5 Update 2 and later vSphere versions (including 6.x) connecting to HPE 3PAR StoreServ arrays.

RESOLUTION

To prevent the host disconnects due to the ATS timeout, the following workaround can be applied on the host side:

Disable the ATS Datastore heartbeat feature and revert to the pre-5.5 Update 2 behavior on the VMware host. To revert the heartbeat to non-ATS mechanisms, disable this feature on ALL hosts sharing the Datastore where these errors are seen (refer to the VMware KB article at http://kb.vmware.com/kb/2113956 Non-HPE site ).

NOTE: This does not disable the ATS Datastore locking mechanism. It is not recommended to disable the ATS Datastore locking mechanism.




NOTE: Products sold prior to the November 1, 2015 separation of Hewlett-Packard Company into Hewlett Packard Enterprise Company and HP Inc. may have older product names and model numbers that differ from current models.




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Hardware Platforms Affected: HPE 3PAR StoreServ 9000 Storage, HPE 3PAR StoreServ 10000 Storage, HPE 3PAR StoreServ 7000 Storage, HPE 3PAR StoreServ 20000 Storage, HPE 3PAR StoreServ 8000 Storage
Operating Systems Affected: Not Applicable
Software Affected: Not Applicable
Support Communication Cross Reference ID: SIK1115
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Document title: Advisory: (Revised) HPE 3PAR StoreServ Storage - Array Host Disconnects While Running VMware vSphere 5.5 Update 2 and Later
Document ID: emr_na-c05228694-9
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