As a last update on those drives, sadly they seem to have real problems with SMART, which is why I was confused when using them. myth:~# badblocks -fsvn -b512 /dev/sdf /dev/sdf is apparently in use by the system; badblocks forced anyway. Checking for bad blocks in non-destructive read-write mode >From block 0 to 3131110575 Checking for bad blocks (non-destructive read-write test) Testing with random pattern: done Pass completed, 0 bad blocks found. (0/0/0 errors) That means a full read/write scan ran ok. Yet: 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 7 7 sectors still marked as pending. This makes no sense... As far as I can tell, SMART is just broken on those drives, and they're going back to where I got them from. Thanks all for the replies and helping me confirm this. Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 7F55D5F27AAF9D08 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html