SCSI reservations conflict message is causing DMP device failure

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Article ID: 100027818

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Updated On:

Description

Error Message

Jul 30 15:51:08 oraee-t01 kernel: sd 1:0:0:6: reservation conflict
Jul 30 15:51:08 oraee-t01 kernel: VxVM vxdmp V-5-0-0 SCSI error opcode=0x5f returned rq_status=0x7 cdb_status=0x0 key=0x0 asc=0x0 ascq=0x0 on path 8/0x30
Jul 30 15:51:08 oraee-t01 kernel:
Jul 30 15:51:08 oraee-t01 kernel: VxVM vxdmp V-5-0-112 disabled path 8/0x30 belonging to the dmpnode 201/0x40 due to path failure
Jul 30 15:51:08 oraee-t01 kernel:
 

Cause

In SFHA 6.0 and RHEL5 Update 8 systems, when we carry out task of deport and import of diskgroup, we are seeing DMP paths are getting failed without any valid reason in shared DiskGroup environment. We see SCSI reservation conflict messages followed by DMP node failure in system logs and if we look throughly, we don't find any Hardware or SCSI level errors for these disk devices.

We are hitting known issue, and there is an etrack "2866527" already created for this issue.

Resolution


1. First we need to upgrade to RP1 from SF 6.0, we have included download and install document here for RP1 ->

sfha-rhel5_x86_64-6.0RP1

https://sort.Veritas.com/patch/detail/6115

2. Then also apply P2 for vxfen issues, if we are using VCS here -

vcs-rhel5_x86_64-VRTSvxfen-60RP1P2

https://sort.Veritas.com/patch/detail/6314

3. Then we need to upgrade to HF1, please ask Veritas TSE for this hot fix - >vm-rhel5_x86_64-6.0RP1HF1_linux_vm

 

 


Applies To

This problem only happens while using SFHA 6.0 and RHEL5 Update 8

 

Issue/Introduction

In the Shared DiskGroup environment, when we try to deport and import of shared DiskGroup, we find DMP paths are failing followed by DMP nodes failure under SFHA 6.0 and RHEL 5U8 systems, though we find disk devices are accessible under OS layer.
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