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 Taking snapshot of VM causes Mirror to failover

Author  Topic 

Wrangler
Starting Member

35 Posts

Posted - 2011-04-19 : 19:36:16
Wondering if this is common. On SQL 2008 VMWare machine using Mirroring sometimes taking a Snapshot of the VM will cause the mirror to failover to the second server. We use a 30 second failover delay.

Thanks,

Jahanzaib
Posting Yak Master

115 Posts

Posted - 2011-04-20 : 08:54:55
Cause sync issue


Regards,

Syed Jahanzaib Bin Hassan
MCTS,MCITP,OCA,OCP,OCE,SCJP,IBMCDBA

My Blog
www.aureus-salah.com
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Wrangler
Starting Member

35 Posts

Posted - 2011-04-20 : 11:44:23
Jahanzaib, I don't really understand your response
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robvolk
Most Valuable Yak

15732 Posts

Posted - 2011-04-20 : 11:53:09
I'm not familiar with VMWare but if the snapshot process has to freeze the VM state, it could take long enough to trip the timeout threshold and fail over. Are you using a mirror witness?
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Jahanzaib
Posting Yak Master

115 Posts

Posted - 2011-04-20 : 12:06:14
that could be sync issue with primary and secondary node because when you take a snapshot of primary server then it freeze then move to secondary server

yes offcourse witness server should be there because its automatically move on secondary server

Regards,

Syed Jahanzaib Bin Hassan
MCTS | MCITP | OCA | OCP | OCE | SCJP | IBMCDBA

My Blog
www.aureus-salah.com

Regards,

Syed Jahanzaib Bin Hassan
MCTS,MCITP,OCA,OCP,OCE,SCJP,IBMCDBA

My Blog
www.aureus-salah.com
Go to Top of Page
   

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