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Data LIF of the takeover node briefly disconnects during node takeover

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Category:
ontap-9
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core
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Applies to

  • ONTAP 9.8
  • ONTAP 9.7
  • ONTAP 9.6
  • ONTAP 9.5
  • ONTAP 9.3
  • ONTAP 9.1

Issue

While performing a node takeover, moving data LIF to a takeover node results in brief disconnection.

  • In the event log there are notifications about LIFs being moved:

Sun Feb 13 16:11:07 +0100 [node01: vifmgr: vifmgr.lifBeingRemoved:notice]: LIF node02-cifs (on virtual server 3), IP address 10.20.20.10, is being removed from node node01, port a0d.
Sun Feb 13 16:11:07 +0100 [node01: vifmgr: vifmgr.lifBeingRemoved:notice]: LIF node02-nfs (on virtual server 3), IP address 10.20.21.8, is being removed from node node01, port a0d.
Sun Feb 13 16:11:07 +0100 [node01: vifmgr: vifmgr.lifBeingRemoved:notice]: LIF node01-nfs (on virtual server 3), IP address 10.20.21.9, is being removed from node node01, port a0d.
...
Sun Feb 13 16:12:17 +0100 [node01: vifmgr: vifmgr.lifsuccessfullymoved:notice]: LIF node02-cifs (on virtual server 3), IP address 10.20.20.10, is now hosted on node node01, port a0d.
Sun Feb 13 16:12:17 +0100 [node01: vifmgr: vifmgr.lifsuccessfullymoved:notice]: LIF node02-nfs (on virtual server 3), IP address 10.20.21.8, is now hosted on node node01, port a0d.
Sun Feb 13 16:12:17 +0100 [node01: vifmgr: vifmgr.lifsuccessfullymoved:notice]: LIF node01-nfs (on virtual server 3), IP address 10.20.21.9, is now hosted on node node01, port a0d.

  • External cache warming process terminated due to timeout prior the kernel shutdown notice:

Sun Feb 13 16:11:41 +0100 [node02: shutdown_thread0: extCache.rw.terminated:notice]: WAFL external cache warming process terminated.
Sun Feb 13 16:11:41 +0100 [node02: shutdown_thread0: extCache.rw.timeout:notice]: WAFL external cache warming process exceeded its maximum allowable time and was aborted.
Sun Feb 13 16:11:41 +0100 [node02: shutdown_thread0: kern.shutdown:notice]: System shut down because : "D-blade Shutdown".

  • Vifmgr unit going offline and back online:

Sun Feb 13 2022 16:10:01 +01:00 [kern_vifmgr:info:6259] A [src/rdb/HAM.cc 1161 (0x80c121200)]: reportLocalOffline: HAM: new goal HAM_GOAL_ACTIVATE
Sun Feb 13 2022 16:10:01 +01:00 [kern_vifmgr:info:6259] Notice: online_status_callback: RDB unit is offline
Sun Feb 13 2022 16:10:01 +01:00 [kern_vifmgr:info:6259] A [src/rdb/HAM.cc 1602 (0x80c120d00)]: _hamThreadFunc: HAM: daemon goal change from HAM_GOAL_NORMALIZE to HAM_GOAL_ACTIVATE or shutdown 0
...
Sun Feb 13 2022 16:11:47 +01:00 [kern_vifmgr:info:6259] A [src/rdb/HAM.cc 1713 (0x80c120d00)]: _achievedGoal: HAM: Entering HA-active.
Sun Feb 13 2022 16:11:47 +01:00 [kern_vifmgr:info:6259] Notice: online_status_callback: RDB unit is online as Master

 

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