[mnorth]

The Saga continues - the RAID degraded again, so I have now set the Western Digital Time-Limited Error Recovery (TLER) to 7 ms, in the hope this stops the RAID falling over. I am rebuilding the RAID again - takes about 4 hours each time.

This time I was about when the alarm went off to alert me, so I was able to identify which disc had been dropped from the RAID, previously the whole device hung, and I lost the log and data!

I wish there was an option to have the alarm not sounding constantly when degraded though!

Further update later - but so far I have not got 7 WD x 1Tb drives to work for more than a couple of days.