Home > Storage > PowerScale (Isilon) > Product Documentation > Storage (general) > Dell PowerScale: Common AntiVirus Agent Solution > Scenario 1: Performance of scan on close
In this scenario, the client servers generate different sizes of files which are 10 KB, 100 KB, 1 MB, 10 MB, 100 MB, and 200 MB. From a PowerScale perspective, a standard scan profile is applied to ensure that the scan occurs when the file is closed. Regarding the detailed CAVA configuration on PowerScale, see the following profile:
vshen-p21evix-1# isi antivirus cava filters view System
Zone: System
Enabled: Yes
Open-on-fail: Yes
File Extensions: *
File Extension Action: include
Scan If No Extension: No
Exclude Paths: -
Scan-profile: standard
Scan-on-read: No
Scan-on-close: Yes
Scan-on-rename: Yes
Scan Cloudpool Files: No
Figure 8 shows how the number of files scanned per second changes along with the increase of the average file size. With the increased size of the files, the overall trend of the files scanned per second is decreased.
Figure 9 shows the relationship between average file size and the scanning throughput. Theoretically, the results equal the files scanned per second times the average file size in each category. With the increase of file size, the scanning throughput increases. In this case, after it reaches 2 GB/sec, it goes flat.
The average CPU utilization on the PowerScale cluster is stable under 8% no matter the overall scan throughput or various average file sizes. For more details, see Figure 10.