Hi Jose,
Deduplication or dedup for short is usually a function of the storage appliance, and as
such is a "post-allocation" operation. As a quick example the hypervisor will
request the space, allocate all of it, and if space can be reclaimed via a storage side
operation like dedup, that's where it's handled.
If you're leveraging oVirt with storage appliance that supports dedup it will work
just fine with oVirt as well.
We DO however support thin provisioning. This is a "pre-allocation" operation
handled by oVirt. Instead of just waiting on the storage to reclaim space via a dedup job
(if this isn't done inline dedup can be taxing on the storage array and is usually a
scheduled job that isn't constant) thin provisioning only allocates the storage space
that is actually required.
More information can be found on our wiki here:
http://www.ovirt.org/Vdsm_Disk_Images
Theron Conrey
Open Source and Standards, Red Hat
@theronconrey
----- Original Message -----
From: suporte(a)logicworks.pt
To: Users(a)ovirt.org
Sent: Saturday, May 25, 2013 9:02:40 AM
Subject: [Users] deduplication
is deduplication possible?
Regards
Jose
--
Jose Ferradeira
http://www.logicworks.pt
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