fcocquyt at stanford
Apr 12, 2012, 6:24 PM
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Re: VSC 4 and online alignment - anyone used it in anger?
[In reply to]
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I'm frustrated they seemed to have released it before its done - see my post from 2 weeks ago
"VSC 4 missing VAAI and getting no VMs for aligned/not aligned"
https://communities.netapp.com/message/78768
Are people successfully using it to align VMs ?
We aligned all our VMs over a year ago when Netapp cited it as a prereq for helping us solve a latency issue.
I forget how I found out about VSC 4.0 - but I usually get this info from RSS feeds of blogs.
If the online alignment is production ready I can't believe they didn't tell folks earlier this was in the pipeline since it would save folks TONS of downtime we went through last year.
I remember asking back in June 2009 about "Adding VM re-alignment to SVMotion - which API?"
at that time the APIs were not there…
On Apr 12, 2012, at 5:17 PM, steve klise wrote:
> This maybe off topic, but I am a bit frustrated here.
>
> Is there anyway ANYONE knows of a way one becomes abreast of new updates to Netapp software one has purchased? We have someone doing re-alignments during the late evening taking downtime to re-align these windows 2003 vms.
>
>
> Any help is appreciated.
>
>
> BTW, thanks Peta for posting this. This is my current method of knowing what's out there and what others are doing.
>
> > From: cruxrealm [at] aol
> > Subject: Re: VSC 4 and online alignment - anyone used it in anger?
> > Date: Wed, 11 Apr 2012 19:47:53 -0700
> > To: petathames [at] gmail
> > CC: Toasters [at] teaparty
> >
> > I suggest do it by batches and run in on quiet times. Also make sure you have ample space for VM snapshots.
> >
> > Sent from my iPad
> >
> > On Apr 11, 2012, at 7:26 PM, Peta Thames <petathames [at] gmail> wrote:
> >
> > > Hi all,
> > >
> > > I've been testing the new functionality in VSC 4 around online
> > > re-alignment. I've done some tests with a test datastore and test VM
> > > under load, all fine.
> > >
> > > However I have an estate of over 200 datastores. Has anyone run the
> > > scan manager across all their datastores at once? Was there any
> > > noticeable impact to the VMs? As far as I can tell, I can only
> > > schedule the scan to scan everything at once. I know I could manually
> > > do batches but I need to run the scans overnight.
> > >
> > > I've found documentation around the actual online alignment function
> > > and warnings to not do too many at once, but nothing about the scan.
> > > There also seems to be no way of stopping the scan once it starts,
> > > which makes my rollback plan in my CR for this scan a bit empty
> > > looking and hard to justify.
> > >
> > > And a long shot, just out of curiosity, if anyone has any information
> > > on what the scan actually does would be interesting too. I can see it
> > > takes a VM snapshot for each VM in the datastore, then deletes it, but
> > > that's it. I've searched NOW high and low, but documentation on VSC 4
> > > is pretty thin on the ground.
> > >
> > > Thanks,
> > > Peta
> > > _______________________________________________
> > > Toasters mailing list
> > > Toasters [at] teaparty
> > > http://www.teaparty.net/mailman/listinfo/toasters
> >
> > _______________________________________________
> > Toasters mailing list
> > Toasters [at] teaparty
> > http://www.teaparty.net/mailman/listinfo/toasters
> _______________________________________________
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