From: Steven Haigh <netwiz@crc.id.au>
To: xen-devel@lists.xensource.com
Subject: xen DomU image on RAID5 + XFS causes issues with tap:aio
Date: Tue, 27 Apr 2010 06:07:09 +1000 [thread overview]
Message-ID: <108a1603d3bfa90314a08055d24440e0@localhost> (raw)
Hi all,
Firstly, I'm not subscribed to this list so please CC me into replies.
Upon bashing my head against a wall trying to get Xen working on my new
hardware I came across an interesting discovery. Every install using
virt-install was failing and I could only use the file: access method for
my DomUs. Every time I tries to use tap:aio the guest would error on boot
saying it couldn't find the root partition.
My system is as follows:
OS: CentOS 5.4
Xen: 3.0.3-94.el5_4.3
/ = 2 x 80Gb HDDs, dmraid1, ext3
/mnt/raid = 3 x 1Tb HDDs, dmraid5, xfs
On whim, I moved the DomU images from /mnt/raid/vm-images to /vm-images
and instantly tap:aio worked again.
This brings me to my question:
Why would tap:aio fail when the images are on an XFS/RAID5 filesystem but
work correctly when on a RAID1/ext3 filesystem?
To me, this seems like a bug.
--
Steven Haigh
Email: netwiz@crc.id.au
Web: http://www.crc.id.au
Phone: (03) 9001 6090 - 0412 935 897
Fax: (03) 8338 0299
next reply other threads:[~2010-04-26 20:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-26 20:07 Steven Haigh [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-04-26 20:05 xen DomU image on RAID5 + XFS causes issues with tap:aio netwiz
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