Takeover not possible: local node missing partner disks in AFF/FAS
Applies to
- ONTAP 9
- Clustered ONTAP 8.X
- AFF systems
- FAS Systems
Issue
- The system reports it cannot see all disks in the cluster from one node in the cluster.
- Takeover not possible on the node that cannot see all partner disks.
- Following is also observed:
- Disk fails on node A and is replaced
- Node B reports takeover is not possible because the local node is missing partner disks
- Check
STORAGE-FAILOVER.XMLsection on Node B (node that did not own the failed disk). It will list the UID of the old disk in the 'Missing Disks on Partner Node' field.
- EMS logs confirm the presence of a BUG:
Mon May 04 21:16:13 GMT [node-name: pmcsas_asyncd_4: sas.adapter.debug:info]: params: {'debug_string': 'A different device detected at 11b.42.6 than what was here previously. Old WWN 5:000cca:0221942:a5 New WWN 5:000c50:07676c8:11.', 'adapterName': '11a'}
Fri Jun 26 00:23:15 GMT [node-name: api_dpool_01: cf.disk.inventory.mismatch:critical]: Status of the disk 11b.42.6 (5000C500:7676C813:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000) has recently changed or the node (node-name) is missing the disk.
STORAGE-FAILOVER.XMLshowsLocal node missing partner disks- Example:
Takeover Enabled true
Takeover Possible false
Reason Takeover not Possible
Local node missing partner disks
Reason Takeover not Possible (Enum value)
disk_inventory_mismatch_local
