High Latency with SM-BC caused by network issues
Applies to
- ONTAP 9
- SnapMirror Active Sync (SM-AS)/SnapMirror Business Continuity (SM-BC)
Issue
- High latency reported from SnapMirror Sync
- SM-AS/SM-BC relies on SnapMirror Sync (SM-S)
- CLI command
qos statistics workload latency show
shows the high latency fromSM Sync
- AIQUM/OCUM shows the high latency from
Sync SnapMirror
- EMS errors are logged on the primary site:
Tue Apr 04 02:38:22 +0800 [Node1-01: repl_Handle_sync_resl: callhome.syncsm.exception:error]: Call home for SNAPMIRROR SYNCHRONOUS EXCEPTION: Network Latency exceeded threshold limit.
- CLI command
network test-link
shows a high network latency between the source and destination cluster