[pve-devel] Enable trim discard support for rbd

[Stefan Priebe - Profihost AG]

Am 02.11.2012 09:24, schrieb Dietmar Maurer:
>> I want to enable trim support rbd see:
>> http://ceph.com/docs/master/rbd/qemu-rbd/#enabling-discard-trim
>>
>> I think we can generally enable it it doesn't harm.
>>
>> Where can we do this?(which function)
>
> That seem to be a highly experimental feature - only used by ide and scsi block driver, and
> discard_granularity has hardoced limits, and is not really documented :-/

Just for IDE ;-) Who uses IDE today? ;-) For SCSI there are no limits. 
I'll check this.

Stefan