From: Phillip Susi <psusi@cfl.rr.com>
To: "Dirk Lutzebäck" <dirk@lutzebaeck.net>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: How long does it take to balance a 2x1TB RAID1 ?
Date: Mon, 09 Jan 2012 10:01:10 -0500 [thread overview]
Message-ID: <4F0B0136.7060205@cfl.rr.com> (raw)
In-Reply-To: <je6lin$m0e$1@dough.gmane.org>
On 1/6/2012 6:23 AM, Dirk Lutzeb=C3=A4ck wrote:
> Hi,
>
> I have setup up a btrfs RAID1 using two 1TB drives. How long should a
> 'btrfs filesystem balance' take? It is running now for more than 3 da=
ys
> on about 30% CPU and 40% wait state.
>
> I am using stock btrfs from ubuntu 11.10 kernel 3.0.0
Not nearly that long. Assuming it actually has to rewrite 1 TB of data=
=20
and is only getting 50 MB/s, that should only take about 5.5 hours. Yo=
u=20
might want to try a newer kernel ( like the one from 12.04 ).
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prev parent reply other threads:[~2012-01-09 15:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-06 11:23 How long does it take to balance a 2x1TB RAID1 ? Dirk Lutzebäck
2012-01-09 15:01 ` Phillip Susi [this message]
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