SCSI sense key: Medium Error and error: return code = 0x08070002, 0x08100002, or 0x08000002
Issue
- Seeing Medium Error sense key being logged.
- SCSI error: driverbyte=DRIVER_SENSE plus Medium Error sense key
- SCSI error: return code 0x08070002 plus Medium Error sense key
- SCSI error: return code 0x08000002 plus Medium Error sense key
- SCSI error: return code 0x08100002 plus Medium Error sense key
- Resulting in issues with disks:
- With multipath, there could be constant path failovers.
- With a mounted filesystem, it is remounted read-only.
- It could happen for a lun or subset of luns.
/var/log/messages
contains one of the following forms of the event or similar
sd 0:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE sd 0:0:0:0: [sda] Sense Key : Medium Error [current] sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error or kernel: sd 6:0:2:0: SCSI error: return code = 0x08100002 kernel: Result: hostbyte=invalid driverbyte=DRIVER_SENSE,SUGGEST_OK kernel: sde: Current: sense key: Medium Error kernel: Add. Sense: Record not found or kernel: sd 1:0:5:14: [sdhl] Add. Sense: Unrecovered read error - recommend reassignment kernel: sd 1:0:5:14: [sdhl] CDB: Read(10): 28 00 04 45 a6 70 00 00 08 00 kernel: sd 3:0:5:14: [sduj] Unhandled sense code kernel: sd 3:0:5:14: [sduj] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE kernel: sd 3:0:5:14: [sduj] Sense Key : Medium Error [current] or kernel blk_update_request: critical medium error, dev sde, sector 1025000000 kernel sd 4:2:4:0: [sde] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE kernel sd 4:2:4:0: [sde] tag#0 Sense Key : Medium Error [current] kernel sd 4:2:4:0: [sde] tag#0 Add. Sense: Unrecovered read error kernel sd 4:2:4:0: [sde] tag#0 CDB: Read(10) 28 00 3d 22 60 00 00 02 00 00 kernel blk_update_request: critical medium error, dev sde, sector 1025662976 or kernel: sd 1:0:0:2: SCSI error: return code = 0x08070002 kernel: sdab: Current: sense key: Medium Error kernel: Add. Sense: Unrecovered read error kernel: end_request: I/O error, dev sdab, sector 83235271 kernel: device-mapper: multipath: Failing path 65:176. multipathd: dm-8: add map (uevent) multipathd: dm-8: devmap already registered
Environment
- Red Hat Enterprise Linux (RHEL) 9
- Red Hat Enterprise Linux (RHEL) 8
- Red Hat Enterprise Linux (RHEL) 7
- Red Hat Enterprise Linux (RHEL) 6
- Red Hat Enterprise Linux (RHEL) 5
- Red Hat Enterprise Linux (RHEL) 4
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