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Split Serial Brain in VXVM under Solaris

Created: 09 Jan 2014 • Updated: 12 Jan 2014 | 3 comments
This issue has been solved. See solution.

Hi

 

I am facing the split serial brain issue in VXVM under solaris. Please find the below---

 

=============================================

Jan  9 18:27:27 vxvm:vxconfigd: V-5-1-9576 Split Brain. da id is 0.2, while dm id is 0.3 for dm disk5mirr
 
Jan  9 18:27:27 vxvm:vxconfigd: V-5-1-569 Disk group ossdg, Disk c2t11d0s2: Cannot auto-import group:
 
Jan  9 18:27:27 vxvm:vxconfigd:         Serial Split Brain detected. Run vxsplitlines
 
==============================================
 
The disk which has giving predictive failure symptoms is c2t11d0.
 
kindly help me to resolve the issue.
 
 
regards...Arup
Operating Systems:

Comments 3 CommentsJump to latest comment

Gaurav Sangamnerkar's picture

Hi Arup,

Serial Split brain on diskgroup means that while while importing the diskgroup vxvm is finding multiple copies of diskgroup configuration & hence vxvm is confused on which copy is right copy & which copy should be used to import the diskgroup. This can possibly happen if you were importing diskgroups on multiple systems

As the error is suggesting, you should execute vxsplitlines command, see below link for an e.g

http://sfdoccentral.symantec.com/sf/5.0/aix/manpag...

Also refer to below technote to see how you can fix the issue

http://www.symantec.com/docs/TECH33020

 

G

PS: If you are happy with the answer provided, please mark the post as solution. You can do so by clicking link "Mark as Solution" below the answer provided.
 

SOLUTION
ARUP JYOTI THAKURIA's picture

Gaurav,thanks for your reply.It works & issue got resolved.

============================

root@komas2o:/etc/vx/bin# /etc/vx/bin/vxsplitlines -v -g ossdg

/etc/vx/bin/vxsplitlines[716]: getopts: v bad option(s)

[ ########## ]

  VxVM vxsplitlines NOTICE V-5-2-2708 There are 1 pools.

The Following are the disks in each pool. Each disk in the same pool

has config copies that are similar.

  VxVM vxsplitlines INFO V-5-2-2707 Pool 0.

c1t1d0s2 disk3

To see the configuration copy from this disk issue

/etc/vx/diag.d/vxprivutil dumpconfig /dev/vx/dmp/c1t1d0s2

To import the diskgroup with config copy from this

disk use the following command

/usr/sbin/vxdg -o selectcp=1322656750.19.komas2o import ossdg

The following are the disks whose ssb ids don't match in this config

copy

disk5mirr

root@komas2o:/etc/vx/bin#

========================================

As only one pool showing I just run the /usr/sbin/vxdg -o selectcp=1322656750.19.komas2o import ossdg.Then start the volumes manually.

 

 

regards....Arup

 

Gaurav Sangamnerkar's picture

Thanks Arup, please click the "Mark as Solution" link on my previous comment so that post can be closed

PS: If you are happy with the answer provided, please mark the post as solution. You can do so by clicking link "Mark as Solution" below the answer provided.