由于AV扫描器过载或断开连接、启用vscan后性能较慢
适用场景
- ONTAP 9
- 病毒扫描(Vscan)
- Trend Micro
- Symantec
- Trellix
问题描述
- 延迟列为高、这 在任何存储子系统中均不计算在内
cluster::> qos statistics workload latency show Workload ID Latency Network Cluster Data Disk QoS Max QoS Min NVRAM Cloud FlexCache SM Sync VA --------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- vol1 4040 64.16ms 1.72ms 0ms 57.00us 14.00us 1ms 0ms 1.00us 0ms 0ms 0ms 0ms vol2 6053 49.26ms 1.21ms 35.00us 870.00us 106.00us 0ms 0ms 2.00us 0ms 0ms 0ms 0ms
- 由于Vscan在CIFS中引入了高延迟、性能较慢
示例：
::*> statistics show -object offbox_vscan_server -instance * -counter scan_latency|scan_latency_base -sample-id vscan_test1 -sort-order descending -sort-key scan_latency -max 10
Object: offbox_vscan_server
Instance: ...
Start-time: 3/10/2020 04:56:22
End-time: 3/10/2020 05:58:29
Elapsed-time: 3722s
[...]
Counter Value
-------------------------------- --------------------------------
scan_latency 456294us
scan_latency_base 372867
注意： scan_latency_base 会将发出的请求视为平均值的基础 scan_latency
- 如果CIFS操作因无法在40秒内完全处理而超时、则会出现此消息
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': '10.10.10.10', 'lastCsmError': 'CSM_OK', 'clientIpAddress': '10.10.10.20', 'suspensionCnt': '6', 'dsId': '0'}
- 排除了导致vscan服务器出现显著延迟的网络问题