Curious what your approach with the SQL VM's are.  We've struggled
getting this right w/ CommVault.  Backups are consistently fast, but
restore speeds can vary *wildly* (whereas other datasets don't seem to
have this variability).  Our DBA's are pferring to stick with the
native SQL backup/restore tools as they seem to get better performance
there.

On Tue, Oct 27, 2015 at 09:57:51AM -0400, Adam Levin wrote:
> Thanks, this is what we were thinking of doing, so it's good to hear
> it's working for others.  I'm hearing from vendors that 50 VM's per
> datastore is a good number.  We were hoping for larger datastores
> (most of our VMs are Windows <50GB or Linux <100GB), but that would
> probably end up with too many VM's to handle effectively.
> 
> I'm thinking weekly quiesced backups and daily basic snapshots would
> probably work well.  We have a bunch of MS SQL VM's -- they need
> special handling, naturally, but they have their own datastores
> anyway.
> 
> -Adam
> 
> On Tue, Oct 27, 2015 at 9:54 AM, Ray Van Dolson <rvandol...@esri.com> wrote:
> 
>     Yes, we still do quiesce the VM's -- but perhaps avoid some of the
>     issues you've seen by having more numerous, smaller FlexVol datastores
>     (usually around 5TB max).  We had to work with our Compute team to kind
>     of re-work things to accommodate backup workflows to minimize
>     disruption.
> 
>     I'd guess there are on average around 50 VM's per volume.  All are not
>     necessarily backed up, so the backup footprint is fairly distributed
>     across volumes.
> 
>     Note: We do complement this by having a couple days worth of "dirty"
>     (e.g. non-quiesced) storage snaps of each volume.  In practice this has
>     worked well for spot recovery.  System typically boots up as if it had
>     crashed which we've found is typically fine for all but the most
>     sensitive workloads.  Then we can just FlexClone the volume to get
>     things back up and running quickly and Storage vMotion the "recovered"
>     VM out.
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