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From: Martin Wilderoth <martin.wilderoth@linserv.se>
To: ceph-devel <ceph-devel@vger.kernel.org>
Subject: Data distribution
Date: Sun, 26 Jun 2011 05:48:59 +0200 (CEST)	[thread overview]
Message-ID: <1793430427.17772.1309060138965.JavaMail.root@mail.linserv.se> (raw)
In-Reply-To: <344660039.17770.1309060083991.JavaMail.root@mail.linserv.se>

Hello

I have a ceph cluster of 6 osd 146gb each. I have copied a lot of data
filling to 87%. Between the osd's the data is not evenly distributed

host1
/dev/sdb              137G  119G   15G  90% /data/osd0
/dev/sdc              137G  126G  7.4G  95% /data/osd1

host2
/dev/sdc              137G  114G   21G  85% /data/osd2
/dev/sdd              137G  130G  3.6G  98% /data/osd3

host3
/dev/sdb              137G  107G   27G  81% /data/osd4
/dev/sdc              137G   98G   36G  74% /data/osd5

During the copy i got I/O error, but after restarting the cluster it seems fine.

By some reason osd3 seems to have much more data than osd5. Is there a way of geting the data distributed better ?.

       reply	other threads:[~2011-06-26  3:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <344660039.17770.1309060083991.JavaMail.root@mail.linserv.se>
2011-06-26  3:48 ` Martin Wilderoth [this message]
2011-06-27 19:19   ` Data distribution Josh Durgin
2011-06-27 19:23     ` Gregory Farnum

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