Consistent software RAID disk errors on nVidia MCP51
My brand new pair of disks in a setup that would otherwise work perfectly fine, decided to keep giving me headache. There are only two disks in the machine, partitioned in three, with the first two pairs of partitions in a RAID1 array. And every now and then one of the disks would disappear from the system, then re-appear with a different drive letter (e.g. sda would become sdc). Obviously the disk would get kicked out of the RAID, but I can then add it back and wait for the 1.5TB partition to sync back the RAID. The errors look like this: Oct 29 03:44:59 lion kernel: ata1.00: n_sectors mismatch 3907029168 != 268435455 Oct 29 03:44:59 lion kernel: ata1.00: revalidation failed (errno=-19) Oct 29 03:44:59 lion kernel: ata1.00: limiting speed to UDMA/133:PIO2 Oct 29 03:44:59 lion kernel: ata1: hard resetting link Oct 29 03:44:59 lion kernel: ata1: nv: skipping hardreset on occupied port Oct 29 03:45:00 lion kernel: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Oct 29 03:45:00 lio