I’ve got all the kinks worked out of the VxFS/VxVM upgrade and restored the data lost.
The corruption was probably due to VxVM thinking that dynamic multipathing (DMP) was on for the Xserve and that c3t0d1 was an alternate path to c3t0d0 (and likewise for c4). I finally subscribed to Veritas-vx and asked the question of how to make VxVM not use DMP for these controllers. The thread starts here and the answer was quick and simple.
After turning off DMP for the two controllers, I again had massive filesystem corruption. I got that worked out, deleted everything on the filesystem (including the lost+found inodes), upgraded the filesystem version to version 6, and then restored the three home directories I’d restored earlier. Everything seems to be ok, and reboots are happy.
I suspect we’re ready to go live with RAHU, but I’m going to let things shake out for the weekend at least before saying so.
Posted by Rowan Littell at April 9, 2004 01:02 PM