ノードのテイクオーバー中にテイクオーバーノードのデータLIFが一時的に切断される

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Category:: ontap-9

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環境

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

問題

ノードのテイクオーバーの実行中にデータLIFをテイクオーバーノードに移動すると、接続が短時間切断されます。

event logは、移動されるLIFに関する通知があります。

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.

カーネルシャットダウン通知の前にタイムアウトが発生したため、外部キャッシュのウォームアッププロセスが終了しました：

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 ユニットがオフラインになり、オンラインに戻る：

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