Re: Slightly Urgent: XFS No Space Left On Device

Dave Chinner
2015-03-30T19:45:13Z

On Mon, Mar 30, 2015 at 02:19:59PM -0400, Dave Hall wrote:
> Hello,
>
> I have an XFS file system that's getting 'No space left on device'
> errors. xfs_fsr also complains of 'No space left'. The XFS Info
> is:
>
> # xfs_info /data
> meta-data=/dev/sdb1 isize=256 agcount=19,
> agsize=268435440 blks
> = sectsz=512 attr=2
> data = bsize=4096 blocks=4882431488, imaxpct=5
> = sunit=16 swidth=160 blks
> naming =version 2 bsize=4096 ascii-ci=0
> log =internal bsize=4096 blocks=521728, version=2
> = sectsz=512 sunit=16 blks,
> lazy-count=1
> realtime =none extsz=4096 blocks=0, rtextents=0
>
> # df -h .
> Filesystem Size Used Avail Use% Mounted on
> /dev/sdb1 19T 12T 7.0T 62% /data
> # df -ih .
> Filesystem Inodes IUsed IFree IUse% Mounted on
> /dev/sdb1 3.7G 4.7M 3.7G 1% /data
>
>
> xfs_db freesp shows that AG 0 seems to be full. I've included the
> freesp for the first few AGs, but the rest seem pretty consistent
> with AGs 1 - 4 that I've included below.
>
> xfs_db> freesp -s -e 1000000000 -a 0

Can you please drop the "-e 1000000" from these commands and post it
again? The histogram of differing free space sizes is information
we actually need to diagnose the problem...

Also, kernel version, mount options and machine details are
necessary to determine why AG0 might be full (e.g. allocation policy
in use).

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com