Fwd: xfs - fixing wrong xfs size

[Eric Sandeen]

On 05/05/2010 03:09 PM, Rafal Blaszczyk wrote:
> 
> 
> 
> On Mon, Apr 13, 2009 at 5:02 PM, Eric Sandeen <sandeen at sandeen.net> wrote:
> 
> 
>>> attempt to access beyond end of device
>>> md0: rw=0, want=123024384, limit=123023488
>>> I/O error in filesystem ("md0") meta-data dev md0 block 0x75533f8
>>
>>       ("xfs_read_buf") error 5 buf count 4096
>>>
>>> XFS: size check 2 failed
> 
> Hi,
> I've had similiar problems with md on top of lvm after converting from
> single LV to mirrored (md device). I've managed to solve it by expanding
> underlying devices by just a few megabytes. I suppose it's not your case
> because you're dealing with bare devices.
> But you could still try to experiment with xfs_growfs or other xfs_* tools.
> 
> From my case - this is not md's fault. XFS wants to have more underlying
> space than it has and it cannot be mounted.

xfs wants only as much space as it has when it was created :)

If that changes such that it is smaller, you'll get this warning at
mount time.  This is almost certainly the result of something that
happened outside xfs's control.

-Eric