Hi,

I know there are quite a few posts regarding similar issues around, but I
can't seem to find a solution or at least an answer to why this is
happening in my case, so I thought I'd try the mailing list and I hope
that's okay.

We have 2 file servers with identical hardware and identical configuration
(Dell R610's, H800 controllers, MD1200 DAS, RAID-5) set up with rsync to
mirror the contents. The content is music in several formats (from PCM WAV
to 64kbit AAC previews), which means file sizes of about 1 - 40mb. Both
systems running SLES 11 SP1. Same kernel (2.6.32.59-0.3-default), same
xfsprogs version (xfsprogs-3.1.1-0.1.36).

My example partition on the source now has 9.9G (of 9.1T) available space
and still doesn't report the drive as full. On the destination, however, it
wont allow me to use any of the remaining 51G. This is obviously a problem
when trying to do mirroring.

Both file systems have been mounted with inode64 option since first mount,
there are plenty of inodes available and I've also verified that there are
noe sparse files (find -type f -printf "%S\t%p\n" 2>/dev/null | gawk '{if
($1 < 1.0) print $1 $2}'), just in case.

I have tried repairing (xfs_repair), defragmenting (xfs_fsr) and alter
imaxpct without any luck. Rsync is run like this: # ionice -c3 rsync -rv
--size-only --progress --delete-before --inplace.


More detailed information on source file system:

# df -k | grep sdg1
/dev/sdg1            9762777052 9752457156  10319896 100% /content/raid31

# df -i | grep sdg1
/dev/sdg1            7471884 2311914 5159970   31% /content/raid31

# xfs_info /dev/sdg1
meta-data=/dev/sdg1              isize=2048   agcount=10, agsize=268435424
blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=2441215991, imaxpct=5
         =                       sunit=16     swidth=80 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

# xfs_db -r "-c freesp -s" /dev/sdg1
   from      to extents  blocks    pct
      1       1   69981   69981   2.99
      2       3  246574  559149  23.86
      4       7  315038 1707929  72.88
      8      15     561    6374   0.27
total free extents 632154
total free blocks 2343433
average free extent size 3.70706



More detailed information on destination file system:

# df -k | grep sdj1
/dev/sdj1            9762777052 9710148076  52628976 100% /content/sg08/vd08

# df -i | grep sdj1
/dev/sdj1            28622264 2307776 26314488    9% /content/sg08/vd08

# xfs_info /dev/sdj1
meta-data=/dev/sdj1              isize=2048   agcount=10, agsize=268435424
blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=2441215991, imaxpct=5
         =                       sunit=16     swidth=80 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

# xfs_db -r "-c freesp -s" /dev/sdj1
   from      to extents  blocks    pct
      1       1   81761   81761   0.62
      2       3  530258 1147719   8.73
      4       7  675864 3551039  27.01
      8      15  743089 8363043  63.62
     16      31     102    1972   0.02
total free extents 2031074
total free blocks 13145534
average free extent size 6.47221


I would be grateful if anyone could shed some light on why this is
happening or maybe even provide a solution.


Thank you,

André