11 September 2007 /home

Storage array holding the /home file system experienced a disk failure - the disk was replaced, however, before the RAID data recovery was complete a second disk failed. The second disk failure resulted in loss of data. The file system contents are being restored from tape backup to a different disk array

Update - 13 September
The restore from tape took longer than expected due to a very large number of small files in /home. /home was back online at about 9:30pm 12 September.

Between 10 September and 12 September we have experienced four disk failures in the storage arrays which contain most of the HPC file systems (/home, /share, /share3, /share4, and /gpfs_share). We will be ordering new disk drives (current drives are four years old and out of warranty) and migrating these file systems to the new disks over the next few weeks.