During MetroCluster switch upgrade front-end stopped serving data

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Category:: metrocluster

Specialty:: metrocluster

Last Updated:

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