Reconstruction never starts with available spare disk or after failed disk replacement
Applies to
- ONTAP 9
- Data ONTAP 8.x 7-mode
- Data ONTAP 8.x C-mode
- Disk Qualification Package (DQP)
Issue
- RAID reconstruction never starts after disk failure with available spare disk or after failed disk replacement.
- Replaced disk model and character is similar to the failed disk.
- Replaced disk may show different type or RPM value from the original disk, example:
RAID group /aggr0/plex0/rg1 (degraded, block checksums)
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity 0a.10.1 0a 21 18 SA:A 0 FSAS 7200 3807816/7798408704 3815447/7814037168
parity 0a.10.2 0a 20 18 SA:A 0 FSAS 7200 3807816/7798408704 3815447/7814037168
data 0c.10.3 0c 22 17 SA:B 0 FSAS 7200 3807816/7798408704 3815447/7814037168
data FAILED N/A 3807816/ -
spare 0c.10.4 0c 23 1 SA:B 0 SAS 15000 3807816/7798408704 3815447/7814037168
- EMS log shows the below event:
[nodename: config_check: sas.config.mixed.detected:warning]: SAS shelf "0" attached to adapter "0b" contains a mixture of drive types. Mixed configurations are not supported.