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WAFL が原因でサーバから LUN に書き込めません メモリが不足しています

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ontap-9
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に適用されます

ONTAP 9.2 以下

問題

  • ノードがオフライン(ハング)で、アグリゲートの状態が不明で ONTAP CLI に応答していません。

::> aggr show
   Info: Node node_name_2 that hosts aggregate aggr0_node_name_2 is offline
       Node node_name_2 that hosts aggregate aggr2_node_name_2 is offline

   Aggregate    Size Available Used% State   #Vols  Nodes       RAID Status
   --------- -------- --------- ----- ------- ------ ---------------- ------------
   ...
   aggr0_node_name_2   -      -    - unknown    - node_name    -
   aggr2_node_name_2   -      -    - unknown    - node_name     -

::> storage failover show
                Takeover
Node       Partner     Possible State Description
-------------- -------------- -------- -------------------------------------
node_name_1    node_name_2    true Connected to node_name
node_name_2    node_name_1    -     Up. Node accessible via HA-IC, but
   cluster access failed
2 entries were displayed.

  • サーバは LUN に書き込むことができず、ルートアグリゲートはオフラインであると認識される。EMS ログの 例:
Sat Jan 09 04:14:35 CET [node_name-01: scsit_lu_1: wafl.memory.statusVeryLowMemory:alert]: WAFL is running very low on memory, with 1454MB remaining.
Sat Jan 09 04:19:35 CET [node_name-01: scsit_lu_0: wafl.memory.statusVeryLowMemory:alert]: WAFL is running very low on memory, with 0MB remaining.
Sat Jan 09 04:57:17 CET [node_name-01: scsit_lu_1: wafl.memory.statusVeryLowMemory:alert]: WAFL is running very low on memory, with 445MB remaining.
  • システムのアップタイムが 300 日を超えています。
Sat Jan 09 01:00:00 CET [node_name-01: statd: kern.uptime.filer:info]:   1:00am up 398 days, 12:12 3 NFS ops, 0 CIFS ops, 0 HTTP ops, 78932960637 FCP ops, 0 iSCSI ops

 

 

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