I guess one of the drives is FUBAR
Apr 25 20:47:48 has kernel: hda: irq timeout: status=0xd0 { Busy }
Apr 25 20:47:48 has kernel: hda: irq timeout: status=0xd0 { Busy }
Apr 25 20:47:48 has kernel: hda: irq timeout: status=0xd0 { Busy }
Apr 25 20:47:48 has kernel: end_request: I/O error, dev hda, sector 39002208
Apr 25 20:47:48 has kernel: hda: status error: status=0x58 { DriveReady SeekComplete DataRequest }
Apr 25 20:47:48 has sshd(pam_unix)[3811]: session opened for user root by (uid=0)
Apr 25 20:47:48 has kernel: hda: drive not ready for command
Apr 25 20:47:48 has kernel: hda: irq timeout: status=0xd0 { Busy }
Apr 25 20:47:48 has kernel: hda: irq timeout: status=0xd0 { Busy }
Apr 25 20:47:49 has sshd(pam_unix)[3811]: session closed for user root
Apr 25 20:47:50 has kernel: hda: irq timeout: status=0xd0 { Busy }
Apr 25 20:47:50 has kernel: end_request: I/O error, dev hda, sector 39002216
Apr 25 20:47:50 has kernel: hda: status error: status=0x58 { DriveReady SeekComplete DataRequest }
Apr 25 20:47:50 has kernel: hda: drive not ready for command
Apr 25 20:47:50 has kernel: hda: irq timeout: status=0xd0 { Busy }
Apr 25 20:47:50 has kernel: raid1: hda: unrecoverable I/O read error for block 38797568
Apr 25 20:47:50 has kernel: hda: read_intr: status=0x51 { DriveReady SeekComplete Error }
Apr 25 20:47:50 has kernel: hda: read_intr: error=0x40 { UncorrectableError }, LBAsect=39002365, sector=39002365
Apr 25 20:47:50 has kernel: end_request: I/O error, dev hda, sector 39002365
Thanks for your help