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在vscan工作负载繁重的情况下、CIFS访问延迟较长、因为AV Connector输入队列已满。

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ontap-9
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nas
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适用场景

  • ONTAP 9
  • ONTAP防病毒连接器(AV连接器) 1.0.4
  • Trend Micro Serverect for Storage 6.0内部版本1119

问题描述

  • 在vscan工作负载繁重的情况下、CIFS访问速度会非常慢、尤其是在运行按需vscan后。
  • 如果CIFS操作因无法在40秒内完成而超时、则会显示以下消息。

Tue Dec 08 11:23:26 CET [Node-01: kernel: Nblade_CifsOperationTimedOut_1:error]: params: {'remoteBladeID': 'xxx-xxxxxxxxxxxx (Node-02)', 'cmdRestartCnt': '0', 'vserverId': '5', 'commandName': 'SMB2_COM_CREATE', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_ERR_OFFBOX_VSCAN_REQD', 'localIpAddress': '1.1.1.1', 'lastCsmError': 'CSM_OK', 'clientIpAddress': '10.10.10.20', 'suspensionCnt': '6', 'dsId': '0'}

  • AV 连接器队列: 即使按需vscan已停止、并且vscan工作负载正在   减少、scanner_stats_pct_input_queue_avg 也会保持较高的使用率(超过90%)。

示例:

:*> statistics show-periodic -interval 10 -object offbox_vscan_server -counter scanner_stats_pct_input_queue_avg|scan_request_timedout|scan_request_pending|scan_request_dispatched|scanner_stats_is_queue_full -instance svm01:xx.xx.xx.xx:sr-2650-04-01
sr-2650-04: offbox_vscan_server.svm01:10.xx.xx.xx:sr-2650-04-01: 6/3/2021 23:26:12
    scan    scan    scan scanner_stats_is scanner_stats_pct_input
   request  request  request       queue          queue  Complete   Number of
 dispatched  pending timedout        full           avg Aggregation Constituents
 ---------- -------- -------- ---------------- ----------------------- ----------- ------------
     58    500     3         0            97   Yes    1
     53    500     0         0            98   Yes    1
     54    500     0         0            98   Yes    1
     64    500     0         0            98   Yes    1
     55    500     0         0            98   Yes    1
     56    500     0         0            98   Yes    1
     63    500     0         0            98   Yes    1
     55    498     2         0            98   Yes    1
     60    500     2         0            98   Yes    1
     91    270    261         0            98   Yes    1
     56    220     50         0            98   Yes    1
     59    220     0         0            98   Yes    1

 

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