jeremy.page at gilbarco
Nov 13, 2009, 5:10 AM
Post #4 of 4
(1839 views)
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I can understand wanting to make your backup up method as reliable as
possible but for most organizations I suspect that crash consistent
backups meet their requirements. I haven't had one fail yet - although
we do dump databases to flat files just in case.
-----Original Message-----
From: owner-toasters [at] mathworks [mailto:owner-toasters [at] mathworks]
On Behalf Of Darren Sykes
Sent: Friday, November 13, 2009 5:23 AM
To: Raj Patel; toasters [at] mathworks
Subject: RE: SMVI Experiances
We use it, and due it generally works OK.
However, getting quieced VMs isn't as straight forward as you'd hope
(especially for highly used VMs).
Nothing should grind to a halt; we snap every 4 hours and it goes
unnoticed. One thing to note is that if you use iSCSI from your guests
then you cannot use SMVI to generate a quieced backup.
Darren
-----Original Message-----
From: owner-toasters [at] mathworks [mailto:owner-toasters [at] mathworks]
On Behalf Of Raj Patel
Sent: 12 November 2009 21:10
To: toasters [at] mathworks
Subject: SMVI Experiances
Hi all,
Now our controller upgrade woes have been sorted I can start to play
with the new stuff on our 2050.
One of those is SMVI.
Unfortunately as we're not on vSphere (and our ESX hosts aren't up to
3.5 update 4) we'll be sticking with v 1.2 of SMVI until we upgrade
our ESX infrastructure to v4.
Anyone out there willing to share their experiances with SMVI ? It
looks fairly simple to configure and get going but just as I was about
to schedule a few backup jobs I thought I'd trawl the net to find out
if there are any 'gotchas'.
For example we use iSCSI - will the VM grind to a halt (ie queisce)
while the Volume is snapped (ie is there a performance hit) or is this
a momentary operation (ie safe to do during the day) ?
I have seen the note about snapping a VM with iSCSI attached LUN's - I
can live with that (not sure about the DBA's . . .).
For Prod we tend to put a 300Gb VMFS lun in a 500Gb flexvol - rate of
change is generally pretty minimal for the app servers (generally w2k3
or w2k8 servers from templates). Is this a workable ratio or do I need
to allocate more space (I'm looking at just a once a day snap with a 1
or 2 day retention) ?
Thanks in advance,
Raj.
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