Oracle ZFS Storage Appliance: LUNs on active node of Windows cluster go offline when passive node is rebooted - due to loss of Persistent Group Reservations

Asset ID:	1-72-1575159.1
Update Date:	2018-01-08
Keywords:

Solution Type Problem Resolution Sure

Solution 1575159.1 : Oracle ZFS Storage Appliance: LUNs on active node of Windows cluster go offline when passive node is rebooted - due to loss of Persistent Group Reservations

Related Items


Sun ZFS Storage 7420
 Sun Storage 7110 Unified Storage System
 Oracle ZFS Storage ZS3-2
 Sun Storage 7210 Unified Storage System
 Oracle ZFS Storage ZS4-4
 Sun Storage 7410 Unified Storage System
 Sun ZFS Storage 7120
 Sun Storage 7310 Unified Storage System
 Oracle ZFS Storage ZS3-4
 Sun ZFS Storage 7320
 Oracle ZFS Storage Appliance Racked System ZS4-4
 Oracle ZFS Storage ZS3-BA

Related Categories


PLA-Support>Sun Systems>DISK>ZFS Storage>SN-DK: 7xxx NAS

SCSI reset can cause loss persistent group reserves on associated luns to be cleared under some circumstances.

In this Document

Symptoms

Cause

Solution

References

Created from <SR 3-7356242711>

Applies to:

Sun Storage 7210 Unified Storage System - Version All Versions and later
Sun Storage 7110 Unified Storage System - Version All Versions and later
Sun ZFS Storage 7320 - Version All Versions and later
Sun ZFS Storage 7420 - Version All Versions and later
Sun ZFS Storage 7120 - Version All Versions and later
7000 Appliance OS (Fishworks)
The Windows 2008 R2 Cluster members in this case were guests of separate ESX 5.1 vm's. The cluster reported it had lost access to the disks.

Symptoms

When the passive node of the windows cluster is rebooted, the active node loses access to disks, they go offline.

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Cause

The cause is bug 16973127.

The comstar driver will clear reservations on any LUN receiving a SCSI reset if the preserve reservation through power cycle bit is not set for that reservation.

This lost reservation problem can occur in other configurations, if the conditions of occurrence are met.

Solution

Please upgrade to Appliance Firmware Release 2013.1.4.0 (or later).

References

<BUG:16973127> - DRIVE OFFLINE AFTER REBOOT PASSIVE NODE OF A WINDOWS CLUSTER ON AN ESX VM

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