Jonathan, Dave, Jim:
At 03:04 Sunday 5th February the DTS SAM-FS server (x1ldasgw1) rebooted itself unexpectedly. The daqd process on x1fw1 was not running at the time, so no data was lost. We restarted SAM-FS and NFS services and rebooted x1fw1, all is now recovered.
The mouting of /cds-h2-frames took longer than usual (several minutes as opposed to a few second).