* Compession, on filesystem or volume?
@ 2011-12-29 10:51 Remco Hosman
2011-12-29 11:11 ` Fajar A. Nugraha
0 siblings, 1 reply; 3+ messages in thread
From: Remco Hosman @ 2011-12-29 10:51 UTC (permalink / raw)
To: linux-btrfs
Hi,
Something i could not find in the documentation i managed to find:
if you mount with compress=lzo and rebalance, is compression on for that
filesystem or only a single volume?
eg, can i have a @boot volume uncompressed and @ and @home compressed.
Thanks,
Remco
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Compession, on filesystem or volume?
2011-12-29 10:51 Compession, on filesystem or volume? Remco Hosman
@ 2011-12-29 11:11 ` Fajar A. Nugraha
2011-12-29 12:35 ` Liu Bo
0 siblings, 1 reply; 3+ messages in thread
From: Fajar A. Nugraha @ 2011-12-29 11:11 UTC (permalink / raw)
To: Remco Hosman; +Cc: linux-btrfs
On Thu, Dec 29, 2011 at 5:51 PM, Remco Hosman <remco@hosman.xs4all.nl> wrote:
> Hi,
>
> Something i could not find in the documentation i managed to find:
> if you mount with compress=lzo and rebalance, is compression on for that
> filesystem or only a single volume?
>
> eg, can i have a @boot volume uncompressed and @ and @home compressed.
Last time I asked a similar question, the answer was no. It's per filesystem.
however you can change compression of individual files between
zlib/lzo using "btrfs fi defragment -c", regardless of what the
filesystem is currently mounted with.
--
Fajar
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Compession, on filesystem or volume?
2011-12-29 11:11 ` Fajar A. Nugraha
@ 2011-12-29 12:35 ` Liu Bo
0 siblings, 0 replies; 3+ messages in thread
From: Liu Bo @ 2011-12-29 12:35 UTC (permalink / raw)
To: Fajar A. Nugraha; +Cc: Remco Hosman, linux-btrfs
On 12/29/2011 07:11 PM, Fajar A. Nugraha wrote:
> On Thu, Dec 29, 2011 at 5:51 PM, Remco Hosman <remco@hosman.xs4all.nl> wrote:
>> Hi,
>>
>> Something i could not find in the documentation i managed to find:
>> if you mount with compress=lzo and rebalance, is compression on for that
>> filesystem or only a single volume?
>>
>> eg, can i have a @boot volume uncompressed and @ and @home compressed.
>
> Last time I asked a similar question, the answer was no. It's per filesystem.
>
> however you can change compression of individual files between
> zlib/lzo using "btrfs fi defragment -c", regardless of what the
> filesystem is currently mounted with.
>
for individual files and directories, we can also set them compress via
FS_IOC_SETFLAGS.
thanks,
liubo
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-12-29 10:51 Compession, on filesystem or volume? Remco Hosman
2011-12-29 11:11 ` Fajar A. Nugraha
2011-12-29 12:35 ` Liu Bo
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