There was a disk failure in the Einstein@Home project server on February 17 at 20:47:08 UTC which was handled correctly by the RAID controller hardware but not by the OS driver, resulting in an unwritable file system

There was a disk failure in the Einstein@Home project server on February 17 at 20:47:08 UTC which was handled correctly by the RAID controller hardware but not by the OS driver, resulting in an unwritable file system. This was fixed by David Hammer within about five hours. During this time, file uploads and downloads were not possible. About two hours after the disk was replaced and the file systems was repaired, a bit of fussing was also needed to restart work unit generation and the scheduler. The project is now up and running again. There was no data loss or corruption and we do not expect any further issues. Note that this was our first project downtime in approximately 8 months.