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тАО05-31-2011 01:44 PM
тАО05-31-2011 01:44 PM
What is the best way to solve snapshot 'Backlog Warning' issues?
I tried decreasing the number of snapshots by setting them further apart, but the problem still happens. I also tried setting the snapshots for overnight, but then this morning I got a lot of 'Snapshot Failed' messages stating that the management group was overloaded.
What is the best way to resolve backlogs while still doing snapshots regularly?
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тАО02-04-2012 10:54 AM
тАО02-04-2012 10:54 AM
Re: What is the best way to solve snapshot 'Backlog Warning' issues?
Hi,
Did you manage to resolve this?
Regards
Dan
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тАО02-04-2012 01:51 PM
тАО02-04-2012 01:51 PM
Re: What is the best way to solve snapshot 'Backlog Warning' issues?
it sounds like you might have a bandwith limitation problem.
What is your connection link speed? If your change rate is greater than that speed, it doesn't matter how quickly or slowly you set your snapshots, you will never be able to keep up.
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тАО02-05-2012 02:57 AM
тАО02-05-2012 02:57 AM
Re: What is the best way to solve snapshot 'Backlog Warning' issues?
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тАО02-05-2012 08:04 AM
тАО02-05-2012 08:04 AM
Re: What is the best way to solve snapshot 'Backlog Warning' issues?
its either your link speed, your hdd speed or your CPUs... if your link is actually supposed to be 1Gb, then its most likely time to start looking at the CMC perfmon to see what is spiking and seems to be maxing out....
My cheap VSAs with back ends of only a pair of 1TB HDDs in raid1 can do 100MB/s,. but there is no other load on those VSAs when that is going on.