I am the sysadmin for a small company with 3 Xserves running OSX 10.6.8 containing mission critical data that need to be backed up in an automated fashion.
To accomplish this, we are going to deploy an Ubuntu 10.04 LTS server with ~10 drives and an XFS storage volume on software RAID10 + LVM2 using Backuppc to actually capture the backups. I've compiled rsync 3.0.7 on the Xserves, so all necessary HFS+ metadata should be captured in the backups.
What I'm not sure about is if that metadata will be retained accurately while stored on the XFS filesystem, and if XFS is even the right tool for the job in this case. While I've used XFS own my own personal fileserver and never had any problems, I've heard plenty of horror stories about power failures causing data corruption and I'm curious about the production level readiness of newer COW filesystems.
Would I be better off using a less volatile filesystem like ext4 or a newer one like BTRFS?