What kernel are you using ? Are you using inode64 mount option on the Cents server itself for XFS ? What OS was the NFS client running ? 32bit ? Just asking, as there seems to be problem with xfs on kernel 2.6.27 when using inode64 mount options regarding 32bit nfs.... Stephan van Hienen wrote: > Centos 6.2 system with xfs filesystem. > I'm sharing this filesystem using nfs. > > When I create a 10 gigabyte test file from a nfs client system : > > dd if=/dev/zero of=10Gtest bs=1M count=10000 > 10000+0 records in > 10000+0 records out > 10485760000 bytes (10 GB) copied, 74.827 s, 140 MB/s > > Output from 'ls -al ; du' during this test : > > -rw-r--r-- 1 root root 429170688 Jun 8 10:13 10Gtest > 654456 10Gtest > > -rw-r--r-- 1 root root 1756831744 Jun 8 10:13 10Gtest > 2230720 10Gtest > > -rw-r--r-- 1 root root 2492145664 Jun 8 10:11 10Gtest > 4348288 10Gtest > > -rw-r--r-- 1 root root 4686782464 Jun 8 10:11 10Gtest > 8542592 10Gtest > > -rw-r--r-- 1 root root 10485760000 Jun 8 10:12 10Gtest > 16943552 10Gtest > > The file is using almost double the size ? > Even after a few days the file is showing the same disk usage. > Only umounting and remounting the filesystem fixes the problem. > When I do the same test on an ext4 filesystem no issues. (same > server/client) > > Same issue on 2 centos 6.2 servers. > I also tried to reproduce the issue on an rhel 5.8 system with xfs, but > here the disk usage is ok. > (I don't have a rhel6 systems with the xfs addon subscription) > > Stephan > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos