Disk redundancy fails for single disk
Applies to
- ONTAP 9
- Call home for DISK REDUNDANCY FAILED
Issue
- EMS alert and callhome
dsa_disc: callhome.dsk.redun.fault:error]: Call home for DISK REDUNDANCY FAILEDsysconfig -aoutput shows disk missing over a path
slot 0: SAS Host Adapter 0a (PMC-Sierra PM8070 rev. C, SAS, <UP>)
[...]
00.20: NETAPP X371_S1643960ATE NA54 915.4GB 520B/sect (XXXXXXXXXXXXXX)
00.21: NETAPP X371_S1643960ATE NA54 915.4GB 520B/sect (XXXXXXXXXXXXXX)
00.22: NETAPP X371_S1643960ATE NA54 915.4GB 520B/sect (XXXXXXXXXXXXXX)
00.23: NETAPP X371_S1643960ATE NA54 915.4GB 520B/sect (XXXXXXXXXXXXXX)
Shelf 0: DS224-12 Firmware rev. IOM12E A: 0240 IOM12E B: 0240
slot 0: SAS Host Adapter 0b (PMC-Sierra PM8070 rev. C, SAS, <UP>)
[...]
00.20: NETAPP X371_S1643960ATE NA54 915.4GB 520B/sect (XXXXXXXXXXXXXX)
00.21: NETAPP X371_S1643960ATE NA54 915.4GB 520B/sect (XXXXXXXXXXXXXX)
00.22: NETAPP X371_S1643960ATE NA54 915.4GB 520B/sect (XXXXXXXXXXXXXX)
Shelf 0: DS224-12 Firmware rev. IOM12E A: 0240 IOM12E B: 0240- Bay shows as Disabled/IDD in SAS expander phy state
Node01> sasadmin expander_phy_state
Expander phy state on 0b.0 (NETAPP :DS22412IOM12E SHFHUXXXXXXXXXXX):
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
------- ----------------- --- --- --- --- ------ ------ ------ ------ ------ ------ ----------------
29/21 12.0 Gb/s YES 0 0 0 0 0 0 0 0 1 ----------------
30/22 12.0 Gb/s YES 0 0 0 0 0 0 0 0 1 ----------------
31/23 Disabled/IDD YES 0 0 0
- Disk shows BYPASSED B
Disk Elements:
Element Status Status Bytes Status Descriptions
0 [Bay 0]: OK 01,00,00,00
1 [Bay 1]: NONCRITICAL 03,01,10,04 ENCLOSURE BYPASSED B, BYPASSED B
- In some cases, "sysconfig -A" shows "Mixed-Path HA"
-
System Storage Configuration: Mixed-Path HA
-
- In ADP configurations, partitions may not be seen for the node unable to see the disk