[dm-devel] [PATCH] dm-thinp: new device mapper target to thin provision storage

[Hannes Reinecke]

Phillip Susi wrote:
> On 9/28/2010 4:49 PM, Heinz Mauelshagen wrote:
>> These are 2 new device mapper targets "thinp" and "thinp-dev"
>> implemented in one module, which allow for thin provisioning of storage
>> on a single host from a storage pool to an arbitrary amount of devices.
> 
> How is this different than snapshotting a zero target?
> 
Main difference is that you actually can free up space.
You can't with snapshotting as then a rollback
becomes impossible.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
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