CIFS クライアント接続がエラー Nblade_CifsOperationTimedOut_1 で失敗する

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Category:: ontap-9

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環境

ONTAP 9
CIFS（SMB）
Windows Active Directory（AD）

問題

CIFS クライアント接続の失敗により、ファイルの削除が失敗します。

EMSログに次のエラーが表示されます：

[Node1: secd: secd.conn.auth.failure:notice]: Vserver (SVM1) could not make a connection over the network to server (ip 10.10.10.1, port 389). Error: Operation timed out (Service: LDAP (Active Directory), Operation: SiteDiscovery).


[Node1: kernel: Nblade_CifsOperationTimedOut_1:error]: params: {'commandName': 'SMB2_COM_SESSION_SETUP', 'suspensionCnt': '1', 'cmdRestartCnt': '0', 'lastCsmError': 'CSM_OK', 'remoteBladeID': '00000000-0000-0000-0000-000000000000', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_NO_FO_ERROR', 'clientIpAddress': '192.168.100.1', 'localIpAddress': '192.168.200.1', 'vserverId': '6', 'dsId': '0', 'vserverName': 'SVM1'}


[Node1: kernel: Nblade_CifsOperationTimedOut_1:error]: params: {'commandName': 'SMB2_COM_SESSION_SETUP', 'suspensionCnt': '2', 'cmdRestartCnt': '0', 'lastCsmError': 'CSM_OK', 'remoteBladeID': 'fed408e3-97bc-11ee-9a5a-d039eab0861c (G1162SV0W3125)', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_NO_FO_ERROR', 'clientIpAddress': '192.168.100.2', 'localIpAddress': '192.168.200.1', 'vserverId': '6', 'dsId': '1025', 'vserverName': 'SVM1'}

SECDログには以下が表示されます：

[kern_secd:info:11334] .------------------------------------------------------------------------------.
[kern_secd:info:11334] |                RPC TOOK TOO LONG:                |
[kern_secd:info:11334] |            RPC used 43 seconds (max is 23)            |
[kern_secd:info:11334] |           and likely caused the client to timeout           |
[kern_secd:info:11334] .------------------------------------------------------------------------------.
[kern_secd:info:11334] |                  RPC SUCCESS:                  |
[kern_secd:info:11334] |            secd_rpc_auth_extended has succeeded            |
[kern_secd:info:11334] |              Result = 0, RPC Result = 0              |
[kern_secd:info:11334] |           RPC received at Mon Oct 27 19:30:54 2025           |
[kern_secd:info:11334] |------------------------------------------------------------------------------'
....omit
[kern_secd:info:11334] | [000.000.514]  ERR  :  RESULT_ERROR_SECD_IN_DISCOVERY:6938 in reserveServer() at src/server_discovery/secd_service_list.cpp:1873
[kern_secd:info:11334] | [000.000.521]  ERR  :  RESULT_ERROR_GENERAL_INVALID_PTR:4 in unlock() at src/include/secd_lock_utils.h:168
[kern_secd:info:11334] | [000.000.528]  debug:  Another thread is doing discovery for vserver 7 { in reserveServer() at src/server_discovery/secd_service_list.cpp:1940 } 
....omit
[kern_secd:info:11334] | [019.151.551]  debug:  Created service key: domain.com  { in makeServiceKey() at src/server_discovery/secd_service_list.cpp:186 }