From: TM <tmjuju@yahoo.com>
To: linux-btrfs@vger.kernel.org
Subject: 1 week to rebuid 4x 3TB raid10 is a long time!
Date: Sun, 20 Jul 2014 08:45:51 +0000 (UTC) [thread overview]
Message-ID: <loom.20140720T102642-239@post.gmane.org> (raw)
Hi,
I have a raid10 with 4x 3TB disks on a microserver
http://n40l.wikia.com/wiki/Base_Hardware_N54L , 8Gb RAM
Recently one disk started to fail (smart errors), so I replaced it
Mounted as degraded, added new disk, removed old
Started yesterday
I am monitoring /var/log/messages and it seems it will take a long time
Started at about 8010631739392
And 20 hours later I am at 6910631739392
btrfs: relocating block group 6910631739392 flags 65
At this rate it will take a week to complete the raid rebuild!!!
Furthermore it seems that the operation is getting slower and slower
When the rebuild started I had a new message every half a minute, now it’s
getting to OneAndHalf minutes
Most files are small files like flac/jpeg
One week for a raid10 rebuild 4x3TB drives is a very long time.
Any thoughts?
Can you share any statistics from your RAID10 rebuilds?
If I shut down the system, before the rebuild, what is the proper procedure
to remount it? Again degraded? Or normally? Can the process of rebuilding
the raid continue after a reboot? Will it survive, and continue rebuilding?
Thanks in advance
TM
next reply other threads:[~2014-07-20 8:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-20 8:45 TM [this message]
2014-07-20 13:53 ` 1 week to rebuid 4x 3TB raid10 is a long time! Duncan
2014-07-20 14:00 ` Tomasz Torcz
2014-07-20 14:50 ` Austin S Hemmelgarn
2014-07-20 17:15 ` ashford
2014-07-20 18:21 ` TM
2014-07-20 18:23 ` TM
2014-07-20 19:15 ` Bob Marley
2014-07-20 19:36 ` Roman Mamedov
2014-07-20 19:59 ` ashford
2014-07-21 2:48 ` Duncan
2014-07-21 16:46 ` ronnie sahlberg
2014-07-21 18:31 ` Chris Murphy
2014-07-22 2:51 ` Duncan
2014-07-22 17:13 ` Chris Murphy
2014-07-24 17:19 ` Chris Murphy
2014-07-20 21:28 ` Bob Marley
2014-07-20 21:54 ` George Mitchell
2014-07-21 1:22 ` Wang Shilong
2014-07-21 14:00 ` TM
2014-07-22 1:10 ` Wang Shilong
2014-07-22 1:17 ` Wang Shilong
2014-07-22 14:43 ` TM
2014-07-22 15:30 ` Stefan Behrens
2014-07-22 20:21 ` TM
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