Am Mon, 02 Oct 2017 22:19:32 +0200
schrieb Niccolò Belli :
> Il 2017-10-02 21:35 Kai Krakow ha scritto:
> > Besides defragging removing the reflinks, duperemove will unshare
> > your snapshots when used in this way: If it sees duplicate blocks
> > within the subvolumes
On 10/02/2017 12:02 PM, Niccolò Belli wrote:
> Hi,
> I have several subvolumes mounted with compress-force=lzo and autodefrag.
>> Since I use lots of snapshots (snapper keeps around 24 hourly snapshots, 7
>> daily
> snapshots and 4 weekly snapshots) I had to create a systemd timer to perform
>
Il 2017-10-02 21:35 Kai Krakow ha scritto:
Besides defragging removing the reflinks, duperemove will unshare your
snapshots when used in this way: If it sees duplicate blocks within the
subvolumes you give it, it will potentially unshare blocks from the
snapshots while rewriting extents.
BTW,
Am Mon, 02 Oct 2017 12:02:16 +0200
schrieb Niccolò Belli :
> This is how I performe balance: btrfs balance start --full-balance
> rootfs This is how I perform deduplication (duperemove is from git
> master): duperemove -drh --dedupe-options=noblock
>
Maybe this is because of the autodefrag mount option? I thought it
wasn't supposed to unshare lots of extents...
Niccolò
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> Subject: Re: Why do full balance and deduplication reduce available free
> space?
>
> Il 2017-10-02 12:16 Hans van Kranenburg ha scritto:
> > On 10/02/2017 12:02 PM, Niccolò Belli wrote:
> >> [...]
> >>
> >> Since I use lots of snapshots
Il 2017-10-02 12:16 Hans van Kranenburg ha scritto:
On 10/02/2017 12:02 PM, Niccolò Belli wrote:
[...]
Since I use lots of snapshots [...] I had to
create a systemd timer to perform a full balance and deduplication
each
night.
Can you explain what's your reasoning behind this 'because X it
On 10/02/2017 12:02 PM, Niccolò Belli wrote:
> [...]
>
> Since I use lots of snapshots [...] I had to
> create a systemd timer to perform a full balance and deduplication each
> night.
Can you explain what's your reasoning behind this 'because X it needs
Y'? I don't follow.
--
Hans van
Hi,
I have several subvolumes mounted with compress-force=lzo and autodefrag.
Since I use lots of snapshots (snapper keeps around 24 hourly snapshots, 7
daily snapshots and 4 weekly snapshots) I had to create a systemd timer to
perform a full balance and deduplication each night. In fact data