Hi Markus

What version of ONTAP is this?  In 8.1, we changed single file SnapRestore to use SIS clone as the underlying engine to revert the object – way faster, and makes the object immediately available as it does the clone in the background.  I don’t remember if it requires a FlexClone license or just SnapRestore.  Which of those licenses do you have?

Peter

From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Markus.Schlegel@roto-frank.com
Sent: Friday, August 01, 2014 4:19 AM
To: toasters@teaparty.net
Subject: SnapRestore very slow

Hello,

i played a bit with VMware + NetApp VSC Backup/Restore and was very surprised by the bad performance of SnapRestore on a NFS Storage.

It took SnapRestore 24 hours to restore a 1TB vmdk! Looking at the filer usage (sysstat) it looked like the filer just copied
the files out of the Snapshot into the live filesystem with terrible slow 12MB/s. I always thought that SnapRestore restores in a few seconds because
if just copies the pointers and not the data itself.

I tried the same again (copying out of the Snapshot), this time with ndmpcopy and got ~350GB/h, which is around 100MB/s and an expected result

Currently we don't own the SnapManager License for VSC - maybe thats the problem? A short test using the cmdline wasn't faster...

Best Regards,

Markus Schlegel

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