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具有 ChangeNotify 的 CIFS FlexGroup 无响应

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Category:
ontap-9
Specialty:
perf
Last Updated:

 

适用场景

ONTAP 9.2 或更高版本

问题描述

  • FlexGroup 或 LUN 上会出现多秒的延迟
  • 由于 LUN 无法读取或写入, SAN 通信变得无响应
    • 高延迟与 qos statistics类似:
       Cluster::> qos statistics latency show -node node1 Policy Group Latency Network Cluster Data Disk QoS Max QoS Min NVRAM Cloud FlexCache SM Sync VA -------------------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- -total- 10.44s 10.44s 38.00us 0ms 0ms 0ms 0ms 0ms 0ms 0ms 0ms 0ms policy_group_1 18.03s 18.03s 72.00us 0ms 0ms 0ms 0ms 0ms 0ms 0ms 0ms 0ms 
    • 事件日志消息可能如下所示:
 Mon Aug 09 21:18:15 +0800 [node1: kernel: Nblade.cifsLockStateMismatch:debug]: params: {'pMessage': 'Leaked share lock?'} Mon Aug 09 21:19:38 +0800 [node1: kernel: Nblade_CifsOperationTimedOut_1:error]: params: {'remoteBladeID': '12345678-9012-3456-7890-123456789012 (node1)', 'cmdRestartCnt': '0', 'vserverId': '4', 'commandName': 'SMB2_COM_CREATE', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_NO_FO_ERROR', 'localIpAddress': '10.1.2.3', 'lastCsmError': 'CSM_TIMEOUT', 'clientIpAddress': '10.2.3.4', 'suspensionCnt': '7', 'dsId': '0'} 
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