During MetroCluster switch upgrade front-end stopped serving data
Applies to
- AFF-A220
- MetroCluster IP
- Backend switch upgrade
- ONTAP <9.7P15
- ONTAP <9.8P7
- ONTAP <9.9.1P1
Issue
While upgrading the backend switches in this Metrocluster IP configuration front-end stopped serving data.
Following is seen from the event log
[Node-01: intr: netif.linkDown:info]: Ethernet e0a: Link down, check cable. [Node-01: intr: netif.linkDown:info]: Ethernet e0a-10: Link down, check cable. [Node-01: intr: netif.linkUp:info]: Ethernet e0a: Link up. [Node-01: intr: netif.linkUp:info]: Ethernet e0a-10: Link up. [Node-01: wafl_exempt02: wafl.cp.toolong:error]: Aggregate aggr_root experienced a long CP. [Node-01: wafl_exempt00: wafl.cp.toolong:error]: Aggregate aggr_data experienced a long CP. [Node-01: diskown.errorDuringIO:error]: error 23 (adapter error prevents command from being sent to device) on disk 0m.i1.1L26 (S/N HLY12300) while reading individual disk ownership area