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From: "Paul B. Henson" <henson@acm.org>
To: linux-bcache@vger.kernel.org
Subject: RE: Another bcache hang
Date: Thu, 21 Nov 2013 17:07:02 -0800	[thread overview]
Message-ID: <14da01cee71f$28d233f0$7a769bd0$@acm.org> (raw)
In-Reply-To: <20131121135604.GA26424@professorx.home.zettazebra.com>

> From: David H. Rhodes Clymer
> Sent: Thursday, November 21, 2013 5:56 AM
>
> I have two bcache devices with different backing devices, but with shared
> cache. The backing devices are LVM logical volumes on top of an RAID1
> software raid device (/dev/md2). The filesystem is ext4.

Off-topic, sorry, but if I understand you your layering is:

disks - mdraid - lvm - bcache - filesystem?

So you created an lv which is the backing device for bcache?

I've been looking at using bcache, but I was planning on switching the
ordering and putting bcache on top of the mdraid, then creating a pv for lvm
on the bcache device:

disks - mdraid - bcache - lvm - filesystem

Out of curiosity, I was wondering why you layered the other way.

Thanks.

  reply	other threads:[~2013-11-22  1:07 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-21 13:56 Another bcache hang David H. Rhodes Clymer
2013-11-22  1:07 ` Paul B. Henson [this message]
2013-11-22  3:49   ` David H. Rhodes Clymer
2013-11-22 14:35     ` Jason Warr
2013-11-22 19:51       ` Paul B. Henson
2013-11-22 20:34         ` Jason Warr
2013-11-22 23:52           ` Paul B. Henson
2013-11-23  0:38             ` Matthew Patton
2013-11-23  0:43               ` Paul B. Henson
2013-11-23  1:02             ` Jason Warr
2013-11-23  2:14               ` Paul B. Henson
2013-11-23  2:38                 ` Jason Warr
2013-11-22 19:46     ` Paul B. Henson

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