So I upgraded to Lenny over the weekend, and now I'm having issues with my RAID1 were there weren't any before. Every few hours one of the devices making up any /dev/md will fail. It's usually on /dev/sdb but it's happening on /dev/sda as well. I can set the device faulty in mdadm and then readd and it builds fine, but then fails again 4 or 5 hours later. I'm new to Linux software RAID so i'm hoping someone can point me in the right direction.
Here's some of the output from dmesg: [144376.558796] ata2.00: status: { DRDY } [144381.956229] ata2: link is slow to respond, please be patient (ready=0) [144387.540534] ata2: device not ready (errno=-16), forcing hardreset [144387.540577] ata2: soft resetting link [144387.793049] ata2.00: configured for UDMA/133 [144387.793095] ata2: EH complete [144387.793564] sd 1:0:0:0: [sdb] 2930277168 512-byte hardware sectors (1500302 MB) [144387.816527] end_request: I/O error, dev sdb, sector 10313569 [144387.816527] md: super_written gets error=-5, uptodate=0 [144387.816527] raid1: Disk failure on sdb5, disabling device. [144387.816527] raid1: Operation continuing on 1 devices. [144387.816527] sd 1:0:0:0: [sdb] Write Protect is off [144387.816527] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 [144387.816527] RAID1 conf printout: [144387.816527] --- wd:1 rd:2 [144387.816527] disk 0, wo:0, o:1, dev:sda5 [144387.816527] disk 1, wo:1, o:0, dev:sdb5 [144387.816527] RAID1 conf printout: [144387.816527] --- wd:1 rd:2 [144387.816527] disk 0, wo:0, o:1, dev:sda5 [144387.816527] disk 1, wo:1, o:0, dev:sdb5 [144387.816527] RAID1 conf printout: [144387.816527] --- wd:1 rd:2 [144387.816527] disk 0, wo:0, o:1, dev:sda5 [144387.848526] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [144528.694180] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [144528.694227] ata1.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 [144528.694231] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [144528.694317] ata1.00: status: { DRDY } [144534.215757] ata1: link is slow to respond, please be patient (ready=0) [144539.581347] ata1: device not ready (errno=-16), forcing hardreset [144539.581390] ata1: soft resetting link [144539.873328] ata1.00: configured for UDMA/133 [144539.873328] ata1: EH complete [144539.873328] sd 0:0:0:0: [sda] 2930277168 512-byte hardware sectors (1500302 MB) [144539.901029] end_request: I/O error, dev sda, sector 10313569 [144539.901029] md: super_written gets error=-5, uptodate=0 [144539.901029] sd 0:0:0:0: [sda] Write Protect is off [144539.901029] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [144539.916264] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [144818.556533] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [144818.556579] ata2.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 [144818.556583] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [144818.556667] ata2.00: status: { DRDY } [144823.887918] ata2: link is slow to respond, please be patient (ready=0) [144829.469773] ata2: device not ready (errno=-16), forcing hardreset [144829.469816] ata2: soft resetting link [144829.746129] ata2.00: configured for UDMA/133 [144829.746129] ata2: EH complete : Thanks for any assistance, Ryan