From: Bron Gondwana <brong@fastmail.fm>
To: Chris Mason <chris.mason@oracle.com>,
Steven Pratt <slpratt@austin.ibm.com>,
linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: Single disk performance
Date: Tue, 30 Jun 2009 09:17:22 +1000 [thread overview]
Message-ID: <20090629231722.GA19561@brong.net> (raw)
In-Reply-To: <20090629124149.GF3951@think>
On Mon, Jun 29, 2009 at 08:41:49AM -0400, Chris Mason wrote:
> On Fri, Jun 26, 2009 at 09:26:59PM -0500, Steven Pratt wrote:
> > 18:40:32 btrfs2 kernel: [ 4459.870613] sd 0:0:1:0: [sdb] Unhandled error
> > code
> > Jun 26 18:40:32 btrfs2 kernel: [ 4459.870640] sd 0:0:1:0: [sdb] Result:
> > hostbyte=DID_ABORT driverbyte=DRIVER_OK
> > Jun 26 18:40:32 btrfs2 kernel: [ 4459.870646] end_request: I/O error,
> > dev sdb, sector 103359232
> >
> > So still not sure if this is HW, but no other FS has triggered it.
>
> I'm afraid Btrfs can't do this on its own. It needs to HW, scsi
> drivers or HW or scsi drivdes ;)
>
> You could try dd if=/dev/sdb of=/dev/zero bs=512 count=1 skip=103359232
>
> Hopefully that will fall over without btrfs helping.
Surely of=/dev/null ? Unless you mean to write to the disk at that block
which would be if=/dev/zero of=/dev/sdb...
Bron.
next prev parent reply other threads:[~2009-06-29 23:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-26 14:28 Single disk performance Steven Pratt
2009-06-26 20:56 ` Chris Mason
2009-06-27 2:26 ` Steven Pratt
2009-06-29 12:41 ` Chris Mason
2009-06-29 23:17 ` Bron Gondwana [this message]
2009-06-30 11:02 ` Chris Mason
2009-06-30 14:38 ` Steven Pratt
2009-06-30 15:10 ` Yan Zheng
2009-06-30 15:26 ` Steven Pratt
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