On 06.02.2013 19:55, Chris Sears wrote:
I'm not sure anyone could give you a "recommended" option for primary
storage without knowing more about your requirements and environment,
but NFS seems to be fairly common for production usage. For KVM, your
storage options are NFS, RDB, CLVM, or SharedMountPoint (which could
be any shared file system, eg GFS).
Thanks, CLVM looks really neat and I imagine the snapshotting is also
superior to what we can see today with kvm+qcow2. I guess I could also
use Glusterfs as SharedMountPoint.
Yes, CS can resize volumes, but it doesn't do anything inside the
guest to resize the local filesystem/partitions.
That's fair enough.
If the requested resize needs more resources than the current
physical host
can provide, can CS (live) migrate the VM to another one?
I'm not aware of any such automatic migration feature. Most of the
primary storage options would expose the same shares/LUNs to all the
hosts in a cluster, so I'm not sure how often this would come up.
In my case the local storage is significantly faster than anything
"shared" I could come up with so this feature is quite appealing. The
other competition's stack can do this and I wondered if cloudstack can
also do it. But CLVM might be a decent compromise, remains to be seen.
Thanks a lot!
Lucian
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