HOST_PORT_FAIL - Disabled by IOM alert due to faulty SAS cable
Applies to
- ONTAP 9
- AFF systems
- FAS systems
- Disk Shelves
Issue
- The following events are reported in the EMS logs:
[node-02: dsa_worker0: ds.sas.running.disparity:debug]: [HST2/P0:2] on channels 0b shelf ID 1 IOM B bay - reports running disparity errors.
[node-02: dsa_worker2: ds.sas.hostphy.disableErr:alert]: Port [HST2/P0:3] on channels 0b shelf ID 1 IOM B disabled due to excessive invalid dword error.
[node-02: dsa_worker2: callhome.hostport.disable:alert]: Call home for HOST_PORT_FAIL - Disabled by IOM
[mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process nchm:DegradedOnlineShelfPort_Alert[*****:3].
[start_asup_collector_thread: shelf.config.tomixedha:notice]: System has transitioned to a mixture of single, multi-path or quad-path storage configurations.
[start_asup_collector_thread: callhome.dsk.redun.fault:error]: Call home for DISK REDUNDANCY FAILED
- From
STORAGE-SHELFsection it can be seen that the affected PHY is disabled due to excessive errors:
Shelf name: 0a.shelf1
Shelf id: 1
Channel: 0a
Module: B
Shelf UID: 50:0a:09:80:07:fa:d6:80
Shelf S/N: SHJSXXXXXXXXXXX
Term switch: N/A
Shelf state: ONLINE
Module state: OK
Partial Path Link Invalid Running Loss Phy CRC Phy
Disk Port Timeout Rate DWord Disparity Dword Reset Error Change
Id State Value (ms) (Gb/s) Count Count Count Problem Count Count
--------------------------------------------------------------------------------------------------
[HST0/P0:0 ] OK 7 12.0 0 0 0 0 0 3
[HST1/P0:1 ] OK 7 12.0 0 0 0 0 0 3
[HST2/P0:2 ] DIS/INVWD 7 NA 3496 2806 0 0 0 4
[HST3/P0:3 ] DIS/INVWD 7 NA 6598 3415 0 0 0 20
- The affected SAS port reports the PHY as unknown or disabled:
slot 0: SAS Host Adapter 0a (PMC-Sierra PM8070 rev. C, SAS, <UP>)
Firmware rev: 03.08.09.00
Base WWN: 5:00a098:003cf2e:30
Temperature: Not Available
Phy State: [0] Enabled, 12.0 Gb/s
[1] Enabled, 12.0 Gb/s
[2] Enabled, Rate unknown
[3] Disabled
SAS-EXPANDER-PHY-STATEreports that affected SAS port report as unknown:
Pwr Invald Disprt Loss Phy CRC Phy
Pwr Ccl Rsv Rls DWord Error Sync Reset Error Change SATA
PHY/BAY STATE ON Cnt Cnt Cnt Count Count Count Prob Cnt Cnt Affiliation
------- ----------------- --- --- --- --- ------ ------ ------ ------ ------ ------ ----------------
8/P2:0 Rate unknown
9/P2:1 12.0 Gb/s --- --- --- --- 0 0 0 0 0 1 ----------------
10/P2:2 12.0 Gb/s --- --- --- --- 0 0 0 0 0 1 ----------------
11/P2:3 12.0 Gb/s --- --- --- --- 0 0 0 0 0 1 ----------------
SYSTEM-HEALTH-ALERT.XMLreportsDegradedOnlineShelfPort_Alert:
Alert ID:DegradedOnlineShelfPort_AlertDescription:Shelf-to-shelf connection between disk shelves x.x x port and x.x x port have 1 inactive PHYs on IOM B.