[linux-lvm] Running thin_trim before activating a thin pool

[Zdenek Kabelac]

Dne 30. 01. 22 v 19:01 Demi Marie Obenour napsal(a):
> On Sun, Jan 30, 2022 at 06:56:43PM +0100, Zdenek Kabelac wrote:
>> Dne 30. 01. 22 v 18:30 Demi Marie Obenour napsal(a):
>>> On Sun, Jan 30, 2022 at 12:18:32PM +0100, Zdenek Kabelac wrote:
>> Then are always landing in upstream kernel once they are all validated &
>> tested (recent kernel already has many speed enhancements).
> 
> Thanks!  Which mailing list should I be watching?

lkml

>> You could easily run in parallel individual blkdiscards for your thin LVs....
>> For most modern drives thought it's somewhat waste of time...
>>
>> Those trimming tools should be used when they are solving some real
>> problems, running them just for fun is just energy & performance waste....
> 
> My understanding (which could be wrong) is that periodic trim is
> necessary for SSDs.

This was useful for archaic SSDs. Modern SSD/NVMe drives are much smarter...

Regards

Zdenek