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From Paul Angus <paul.an...@shapeblue.com>
Subject RE: Slow snapshots with KVM
Date Thu, 31 Jan 2013 07:23:00 GMT
These are all valid points, but in the end CloudStack 'snapshots' do not behave in the way
people from a virtualisation background are likely to expect them to; You can't  just press
a button and roll back, you can only create a clone of that VM which will have a different
MAC and a new IP address and possibly a new hostname...

I agree it may not be the best backup solution, but IMHO  'a backup' is closer fit for the
functionality than a snapshot.

Maybe we should all start calling a it a 'Clone'?


Regards,

Paul Angus
S: +44 20 3603 0540 | M: +447711418784
paul.angus@shapeblue.com

-----Original Message-----
From: Nux! [mailto:nux@li.nux.ro]
Sent: 30 January 2013 23:25
To: cloudstack-users@incubator.apache.org
Subject: Re: Slow snapshots with KVM

On 30.01.2013 22:48, David Nalley wrote:
>
> As long as you realize that these are 'crash consistent' snapshots,
> then yes. I personally dislike using the term 'backup' for snapshots -
> it's certainly not a method I'd use to backup data that was important
> to me.
>
> --David

Crash consistent can be great when you don't have anything else. :-) Plus another advantage
of a full snapshot is that there's no I/O cost in maintaing it vs the changes in "master",
like it is with the e.g. lvm snapshots. So there are advantages and disadvantages..

--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

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