4 Apr
2005
4 Apr
'05
5:03 p.m.
At a recent NetApp presentation it was mention in passing that RAID-DP fails if a double disk failure happens to hit the two parity disk.
Are you talking theoretically, or bug-wise?
Theoretically, I don't see any reason that failure should cause a problem. Since you've only lost the two parity disks, you've lost no data. Not only should this be acceptable, but since none of the data has to be reconstructed you should be able to read and write data with no loss of performance in this situation.
Bug-wise, I've not heard that this particular failure has any problems, but then again, I'm not running DP at the moment.
It should be easy enough to test.
--
Darren Dunham ddunham@taos.com
Senior Technical Consultant TAOS http://www.taos.com/
Got some Dr Pepper? San Francisco, CA bay area
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