All OSTs for /work filesystem are in read-only mode and we need to reboot hexagon. We will come back with more information later on.

Update: 
15:20 25-04-2016 OST 8 has corrupted data and was marked read-only by the system. There are 379 inodes containing multiply-claimed blocks. We are trying to recover from it and identify corrupted files. Owners for identified corrupted files will be notified.
If you have corrupted data on /work, please contact us at support-uib@notur.no.

15:45 25-04-2016 Users were logged out and access closed in order to be able to perform maintenance on the system.

16:35 26-04-2016 Corrupted files were identified and /work filesystem is usable again. Hexagon was rebooted and access is reopened.
We will run further checks on /work filesystem while keeping it on-line. After this last check is finished, as earlier mentioned, the owners of corrupted files will be notified.