I have a 2.4 linux raid 1 on an ASUS mother board. One of the drives failed yesterday and a couple of hours ago I replaced it with a spare I had on the shelf. Now, when the re-sync should be complete I find the new drive also failed and making noise that indicates the controller thrashing the drive arm around (clink, clink, clink). The controllers are integrated into the mbrd so I would not expect them to fail without other problems manifesting themselves. Anyone care to take a guess at what's going on, I'm stumped? In all other respects the system seems to perform normally. It is a production web server on-line 24x7 2 20gig WD205AA SIS 5518 chipset Michael - 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