[linux-lvm] thin discards
shentino at gmail.com
Sun Jul 21 07:10:01 UTC 2013
So can thin volumes support discards independently of the device underneath
I expected fstrim to free space in the thin pool.
On Tue, Jul 16, 2013 at 4:33 AM, Raymond Jennings <shentino at gmail.com>wrote:
> I don't know if the pool device is capable of trim support. I do know
> that the underlying device, a seagate hard drive, does not support discard.
> However one would think that thin volumes have their own discard handling
> to deallocate internally, possibly passing a discard down to the underlying
> block device as needed.
> On Tue, Jul 16, 2013 at 3:16 AM, Zdenek Kabelac <zkabelac at redhat.com>wrote:
>> Dne 15.7.2013 17:32, Raymond Jennings napsal(a):
>> I tried to run an fstrim on a mounted thin volume, but got FITRIM:
>>> not supported.
>>> Did I screw up or something?
>> Is the pool device capable of TRIM support ?
>> Which version of lvm2 and kernel is in use ?
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