Am 07.10.2011 16:01, schrieb lst_ho...@kwsoft.de:

>> Someone on the XFS mailinglist believed it could be filesystem
>> fragmentation after all. They need an aligned continous 16k block to
>> allocate a new inode chunk, otherwise it will fail. I'm going to test
>> that later.
> 
> This could be checked with "xfs_db -c frag -r /device"
> 
> The second inode problem known with XFS is, that all inodes must be
> below 1TB if you are not using inode64 mount option. But this should not
> apply in your case :-)

Fragmentation looks good

lxmhs45:~ # xfs_db -c frag -r /dev/sdb
actual 1894079, ideal 1882306, fragmentation factor 0.62%

However, the free extends histogramm requested by the ML does not.

lxmhs45:~ # xfs_db -r "-c freesp -s" /dev/sdb
   from      to extents  blocks    pct
      1       1   32230   32230   5.36
      2       3    6874   16476   2.74
      4       7  138151  552604  91.90
total free extents 177255
total free blocks 601310
average free extent size 3.39234

So XFS is clearly having a problem here.

I'm trying with ext4 now, let's see how it works out.

Bernhard

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