From: "Niccolò Belli" <darkbasic@linuxsystems.it>
To: <linux-btrfs@vger.kernel.org>
Subject: Amount of scrubbed data goes from 15.90GiB to 26.66GiB after defragment -r -v -clzo on a fs always mounted with compress=lzo
Date: Wed, 11 May 2016 21:50:43 +0200 [thread overview]
Message-ID: <264486fb-94ce-4040-a436-e9db5de9a203@linuxsystems.it> (raw)
Hi,
Before doing the daily backup I did a btrfs check and btrfs scrub as usual.
After that this time I also decided to run btrfs filesystem defragment -r
-v -clzo on all subvolumes (from a live distro) and just to be sure I
runned check and scrub once again.
Before defragment: total bytes scrubbed: 15.90GiB with 0 errors
After defragment: total bytes scrubbed: 26.66GiB with 0 errors
What did happen? This is something like a night and day difference: almost
double the data! As stated in the subject all the subolumes have always
been mounted with compress=lzo in /etc/fstab, even when I installed the
distro a couple of days ago I manually mounted the subvolumes with -o
compress=lzo. Instead I never used autodefrag.
Niccolò
next reply other threads:[~2016-05-11 19:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-11 19:50 Niccolò Belli [this message]
2016-05-11 20:07 ` Amount of scrubbed data goes from 15.90GiB to 26.66GiB after defragment -r -v -clzo on a fs always mounted with compress=lzo Christoph Anton Mitterer
2016-05-12 10:18 ` Duncan
2016-05-12 13:56 ` Niccolò Belli
2016-05-13 6:11 ` Duncan
2016-05-20 15:51 ` Niccolò Belli
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=264486fb-94ce-4040-a436-e9db5de9a203@linuxsystems.it \
--to=darkbasic@linuxsystems.it \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.