[CentOS] thin provisioning in a centos host?

[C. L. Martinez]

On Fri, Oct 12, 2012 at 4:48 PM, Nux! <nux at li.nux.ro> wrote:
> On 12.10.2012 14:43, C. L. Martinez wrote:
>> Hi all,
>>
>> Is it possible to do this? I need to create some sparse volumes/block
>> virtual devices to be served via iscsi target.
>
> Yes, it is, if you use qcow2 files for example. It would also be
> possible to use LVM but the feature is still in "experimental" state.
>

Uhmm .. yes, qcow2 is an option, but it is a very poor option.
Performance is horrible when you use an iscsi client to connect to
iscsi target serving a qcow2 sparse file ....