Ok, thanks for Your reply.
2018-04-05 8:15 GMT+02:00 Wido den Hollander <wido@xxxxxxxx>:
No, you can not. If you map and mount a filesystem twice you will
On 04/04/2018 07:30 PM, Damian Dabrowski wrote:
> Hello,
>
> I wonder if it is any way to run `trimfs` on rbd image which is
> currently used by the KVM process? (when I don't have access to VM)
>
> I know that I can do this by qemu-guest-agent but not all VMs have it
> installed.
>
> I can't use rbdmap too, because most images don't have distributed
> filesystems. It's mostly ext4/xfs so I can't mount them in two places at
> same time.
>
> I would be grateful for any help.
>
corrupt the data on there.
Same goes when you are going to fstrim, you will probably break/corrupt
data on the system.
Do not attempt it. Shut down the VM and then do the fstrim.
Wido
>
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