On Sun, 2021-01-10 at 17:08 -0700, Chris Murphy wrote:
> On Sun, Jan 10, 2021 at 4:09 PM Patrick O'Callaghan
> wrote:
> >
> > > If you're using libvirt, creating a new pool on Btrfs will automatically
> > > set +C attribute.
> >
> > It wasn't Btrfs at the time the image was created.
>
> Ahh got
On Sun, Jan 10, 2021 at 4:39 PM Matthew Miller wrote:
>
> On Sun, Jan 10, 2021 at 11:09:31PM +, Patrick O'Callaghan wrote:
> > > It's not possible to set this attribute once a file has data in it, it's
> > > not retroactive. You'll need to duplicate the file, in that same
> > > directory.
> >
On Sun, Jan 10, 2021 at 4:09 PM Patrick O'Callaghan
wrote:
>
> > If you're using libvirt, creating a new pool on Btrfs will automatically
> > set +C attribute.
>
> It wasn't Btrfs at the time the image was created.
Ahh gotcha. A proper conversion guide should point out this gotcha.
The work aroun
On Sun, Jan 10, 2021 at 11:09:31PM +, Patrick O'Callaghan wrote:
> > It's not possible to set this attribute once a file has data in it, it's
> > not retroactive. You'll need to duplicate the file, in that same directory.
> > Because the directory has the attribute now, the duplicate will inher
On Sun, 2021-01-10 at 09:01 -0700, Chris Murphy wrote:
> On Sun, Jan 10, 2021, 3:52 AM Patrick O'Callaghan
> wrote:
>
>
> On Sat, 2021-01-09 at 18:01 -0700, Chris Murphy wrote:
> > > > Does this mean that my VM image subvolume is being included in the
> > > > compression? If that's the case I'll
On Sun, Jan 10, 2021, 3:52 AM Patrick O'Callaghan
wrote:
On Sat, 2021-01-09 at 18:01 -0700, Chris Murphy wrote:
> > > Does this mean that my VM image subvolume is being included in the
> > > compression? If that's the case I'll cease and desist.
> >
> > Did you set 'chattr +C' for nodatacow on t
On Sat, 2021-01-09 at 18:01 -0700, Chris Murphy wrote:
> > Does this mean that my VM image subvolume is being included in the
> > compression? If that's the case I'll cease and desist.
>
> Did you set 'chattr +C' for nodatacow on the enclosing
> directory/subvolume for the VM images? Nodatacow imp
On Sat, Jan 9, 2021 at 4:15 AM Patrick O'Callaghan
wrote:
>
> On Fri, 2021-01-08 at 00:03 -0700, Chris Murphy wrote:
> > On Thu, Jan 7, 2021 at 5:52 AM Patrick O'Callaghan
> > wrote:
> > >
> > > I did the following:
> > >
> > > # btrfs filesystem defragment -czstd -r -v /home
> > >
> > > and chan
On Fri, 2021-01-08 at 00:03 -0700, Chris Murphy wrote:
> On Thu, Jan 7, 2021 at 5:52 AM Patrick O'Callaghan
> wrote:
> >
> > I did the following:
> >
> > # btrfs filesystem defragment -czstd -r -v /home
> >
> > and changed the fstab entry:
> >
> > # grep /home /etc/fstab
> > UUID=8e1f7af4-c0bf
On Fri, 2021-01-08 at 00:21 -0700, Chris Murphy wrote:
> On Thu, Jan 7, 2021 at 7:52 AM Patrick O'Callaghan
> wrote:
> >
> > On Thu, 2021-01-07 at 21:33 +0800, Qiyu Yan wrote:
> > > > and the space usage doesn't seem to have changed.
> > > Try using compsize to get space usage?
> >
> > # compsiz
On Thu, Jan 7, 2021 at 7:52 AM Patrick O'Callaghan
wrote:
>
> On Thu, 2021-01-07 at 21:33 +0800, Qiyu Yan wrote:
> > > and the space usage doesn't seem to have changed.
> > Try using compsize to get space usage?
>
> # compsize /home
> Processed 373221 files, 936531 regular extents (1058479 refs),
On Thu, Jan 7, 2021 at 5:52 AM Patrick O'Callaghan
wrote:
>
> I did the following:
>
> # btrfs filesystem defragment -czstd -r -v /home
>
> and changed the fstab entry:
>
> # grep /home /etc/fstab
> UUID=8e1f7af4-c0bf-434e-b1c4-a9af2c810d56 /home btrfs
> subvol=home,discard=as
On Thu, 2021-01-07 at 21:33 +0800, Qiyu Yan wrote:
> > and the space usage doesn't seem to have changed.
> Try using compsize to get space usage?
# compsize /home
Processed 373221 files, 936531 regular extents (1058479 refs), 155981
inline.
Type Perc Disk Usage Uncompressed Referenced
> and the space usage doesn't seem to have changed.
Try using compsize to get space usage?
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I did the following:
# btrfs filesystem defragment -czstd -r -v /home
and changed the fstab entry:
# grep /home /etc/fstab
UUID=8e1f7af4-c0bf-434e-b1c4-a9af2c810d56 /home btrfs
subvol=home,discard=async,compress-force=zstd 0 0
(this is an SSD, hence the discard-async)
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