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Intermittent Flexcache disconnects due to communication failures between the intercluster LIFs

  1. Last updated
    Aug 21, 2025
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542
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Category:
ontap-9
Specialty:
CORE
Last Updated:
8/21/2025, 6:49:08 AM

Applies to

  • ONTAP 9 
  • FlexCache

Issue

Intermittent disconnection of FlexCache volumes from the origin volume, causing long timeouts when accessing specific folders. Users reported that folders sometimes fail to load or take a long time to open.

The following event is reported in EMS:
[Node-01: mgwd: cpeer.addr.stable.down:error]: Stable address 10.x.x.x of cluster sm-greg, in IPspace Default, cannot be contacted.
[Node-01: UtilFsmThread: flexcache.originDisconnected: EMERGENCY]: FlexCache volume with Name cache__0001 is disconnected from its origin volume.
[Node-01: kernel: csm.sessionFailed: debug]: Cluster interconnect session failed with CSM error CSM_CONNABORTED.
 

 

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