On Apr 13, 2006 16:40 -0400, Sev Binello wrote: >Andreas Dilger wrote: >>Do you run with write cache enabled on your device? That can potentially >>cause filesystem corruption even in the face of ext3 journaling, because >>the journal atomicity guarantees are lost when the device reports a write >>is complete on disk when it really isn't. >> >> >The raid system does run with write back cache enabled. >I don't believe the actual drives have this enabled, but I'd have to >check. > >But we didn't actually lose power on the raid or hosts >just the connecting switches, so we lost all communication. >Presumably, in this situation the controller cache should have been >emptied Is my reasoning correct here ? Correct. If your RAID has w/b cache enabled, but is battery backed, you should be OK. Beyond this, I'm not sure what else you can look at. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. _______________________________________________ Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
