Slow performance with vscan enabled due to overloaded or disconnected AV Scanner/s
Applies to
- ONTAP 9
- Vscan
- Trend Micro
- Symantec
Issue
- Slow performance / High latency in CIFS, introduced by Vscan.
- Disabling Vscan resolves the latency issue
Mon Dec 20 16:20:54 +0000 [cluster1: kernel: Nblade.vscanNoRegdScanner:error]: For Vserver "svm1", AV Connector running on the AV server "10.xx.xxx.xxx" does not have a registered scan-engine to it. Mon Dec 20 16:20:54 +0000 [cluster1: OffboxVScanTableUpd: Nblade.scannerDisconnected:notice]: Vserver "svm1" disconnected from Vscan server (IP: 10.xxx.xxx.xxx).
- Networking issues have been ruled out