Hi I'm using linux-2.6.26.1 and the mptsas driver included in the mainline tree. I have two LSISAS1068 with 14 disks on them totally. Using 10 of those disks I am trying to build a raid 5 array on. But everytime the reshaping of the raid array has been going on for some time devices start to fail. Its not always the same device(its random?) and the device always reappear at a later time. I thought there was some problem with the disks so I decided to try one of the disks seperately with no raid and just a plain xfs filesystem. And then the disk seem fine. No error. When it fails with the raid array I get this in my dmesg: [68145.893997] sd 1:0:1:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK [68145.893997] sd 1:0:1:0: [sdi] Sense Key : Medium Error [current] [68145.893997] Info fld=0xe0f3b05 [68145.893997] sd 1:0:1:0: [sdi] Add. Sense: Unrecovered read error [68145.893997] end_request: I/O error, dev sdi, sector 235879173 [68145.893997] __ratelimit: 19 messages suppressed [68145.893997] raid5:md4: read error not correctable (sector 235879104 on sdi1). [68145.893997] raid5: Disk failure on sdi1, disabling device. [68145.893997] raid5: Operation continuing on 8 devices. [68145.893997] raid5:md4: read error not correctable (sector 235879112 on sdi1). [68145.893997] raid5:md4: read error not correctable (sector 235879120 on sdi1). [68145.893997] raid5:md4: read error not correctable (sector 235879128 on sdi1). [68145.893998] raid5:md4: read error not correctable (sector 235879136 on sdi1). [68145.893998] raid5:md4: read error not correctable (sector 235879144 on sdi1). [68145.893998] raid5:md4: read error not correctable (sector 235879152 on sdi1). [68145.893998] raid5:md4: read error not correctable (sector 235879160 on sdi1). [68146.384001] md: md4: recovery done. cat /proc/scsi/mptsas/0 ioc0: LSISAS1068 B0, FwRev=011a0000h, Ports=1, MaxQ=266 cat /proc/scsi/mptsas/1 ioc1: LSISAS1068 B0, FwRev=011a0000h, Ports=1, MaxQ=266 It only seems to fail when its under heavy I/O load. Do you have any idea on what the problem could be? /Best regards Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
