From: Dave Chinner <david@fromorbit.com>
To: Joe Landman <joe.landman@gmail.com>
Cc: xfs@oss.sgi.com
Subject: Re: swalloc/allocsize question
Date: Tue, 4 Aug 2015 08:23:53 +1000 [thread overview]
Message-ID: <20150803222353.GU3902@dastard> (raw)
In-Reply-To: <55BFA467.8000707@gmail.com>
On Mon, Aug 03, 2015 at 01:27:03PM -0400, Joe Landman wrote:
> Hi folks:
>
> I've noticed some "odd" behavior while experimenting with xfs
> mounts on relatively recent kernels (3.18 series). Basically, the
> swalloc,allocsize=x options are being modified to something
> different. That is:
>
> root@usn-04:~/burn-in/fio# uname -r
> 3.18.12.scalable
>
> root@usn-04:~/burn-in/fio# mount -o
> inode64,noatime,nodiratime,swalloc,allocsize=1280k /dev/sda /data/1
>
> root@usn-04:~/burn-in/fio# mount | grep sda
> /dev/sda on /data/1 type xfs
> (rw,noatime,nodiratime,swalloc,attr2,inode64,allocsize=256k,noquota)
>
> This is a hardware RAID6 with a 128k chunk size and 12 elements (so
> 10 data drives, thus the 1280k allocsize for stripe width
> allocation). Is this something specific to xfs itself, or is this
> an issue in the mount tools ?
Please provide:
- xfs_info output from the filesystem in question
- dmesg output of all the mount messages
Dave.
--
Dave Chinner
david@fromorbit.com
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prev parent reply other threads:[~2015-08-03 22:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-03 17:27 swalloc/allocsize question Joe Landman
2015-08-03 22:23 ` Dave Chinner [this message]
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