On 03/06/2018 09:52 AM, Ruslanas Gžibovskis wrote:
Thank you again for your support.
I am using separate disk with LVM and in it I have Reiser4, is there any possibility to extend reiser4 fs ?
Not yet.
We have plans to implement 2-dimentional scaling out of Reiser4 volumes:
1) add/remove a data brick;
2) stretch/squeeze a meta-data brick after extending/shrinking the
underlying (LVM) device.
(1) is ready on ~70%, I hope to announce it in Summer.
(2) should be implemented similarly to reiserfs (v3) resize functionality.
I guess you are interested in (2), as compressed data is always located
on meta-data brick
(as a set of "fragments", i.e. records in the storage tree). However,
(2) is of low priority, as
more or less trivial feature (one should take a look at reiserfs (v3)
implementation and do
similarly), so I decided to start from (1).
Thanks,
Edward.
I do not find tools for that. Will it extend once LVM partision will extend?
Or it should be done offline?
Didn't find such tools in /opt/reiser4progs/sbin/*, or at least similar name, I have only "debugfs.reiser4 ; fsck.reiser4 ; make_reiser4 ; measurefs.reiser4 ; mkfs.reiser4"
Ruslanas Gžibovskis
Planned OOO:
2018-04-26 – 2018-05-01 – no access to internet
2018-08-23 – 2018-08-26 – no access to internet
2018-10-22 – 2018-10-26 – no access to internet.
-----Original Message-----
From: Edward Shishkin [mailto:edward.shishkin@xxxxxxxxx]
Sent: Monday, March 5, 2018 6:58 PM
To: Ruslanas Gžibovskis <Ruslanas.Gzibovskis@xxxxxxxx>; Dušan Čolić <dusanc@xxxxxxxxx>
Cc: reiserfs-devel <reiserfs-devel@xxxxxxxxxxxxxxx>
Subject: Re: reiser4 - transparent compression
On 03/05/2018 05:44 PM, Ruslanas Gžibovskis wrote:
Dusan > thank you!
Maybe you know how I can select which compression to use, and compression option/level?
I want to use it for rsyslog server with OpenStack services in debug mode. So many logs will go there...
I would suggest to use a dedicated partition with zstd1 compression in intelligent mode.
Simply specify "-o compress=zstd1" when formatting a partition.
Thanks,
Edward.
And btrfs is strugling a bit.
From: Dušan Čolić [mailto:dusanc@xxxxxxxxx]
Sent: Monday, March 5, 2018 6:41 PM
To: Ruslanas Gžibovskis <Ruslanas.Gzibovskis@xxxxxxxx>
Cc: reiserfs-devel <reiserfs-devel@xxxxxxxxxxxxxxx>
Subject: Re: reiser4 - transparent compression
On Mar 5, 2018 17:39, "Ruslanas Gžibovskis" <mailto:Ruslanas.Gzibovskis@xxxxxxxx> wrote:
Hi all,
Sorry for spam, several years ago, (about 2005 - 2006) I have done tests with reiser4, and it had transparent compression, does it still have such option?
Yes it does, now it's enabled by default.
I do not see it in:
https://reiser4.wiki.kernel.org/index.php/Mount4
But I see it is marked available in wiki:
https://en.wikipedia.org/wiki/Reiser4
Sorry one more time for spamming.
Thanks.
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