I've been running a Centos 6.2 system for two months now. I've been using XFS for the /home file system since I had the impression it would be better for large file systems by avoiding long fsck times. At the same time the nvidia driver has proved to be buggy and has crashed the system several times. XFS has the habit of zeroing out some files each time there is a crash. This would be understandable for files that were being written around the time of the crash. But I've had files be erased that were created hours before the crash and were read-only after creation. I've set some sysctl parameters down to 5 seconds to flush more frequenctly fs.xfs.xfssyncd_centisecs = 500 fs.xfs.xfsbufd_centisecs = 100 fs.xfs.age_buffer_centisecs = 500 fs.xfs.filestream_centisecs = 500 (The file system is mounted with options "defaults,relatime") You wouldn't expect files last modified more than 12 hours before the crash to be erased but that is what has just happened this Friday evening. Perhaps there is some care and feeding of XFS that I'm not doing? Should I be using xfs_repair? I expect I'll just switch to ext4. -- Anthony Shipman Mamas don't let your babies als@iinet.net.au grow up to be outsourced.