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WHAM Checks and SMB bottleneck

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Hello.

My MVM setup runs monthly vuln scans, full WHAM checks, on groups of 100 windows assets. The batch sizes are set to 32 and the sub-scans to 10. Some of these scans take up to 8 hours to complete.

We noticed that in the first 10 minutes of the scan, after the discovery phase, the FSL scripts per minute for each batch are ~700, the CPU goes up to 25% (4 cores) and the Network occupation goes no further than 33-35%.

After the first 10 minutes the FSL per minute drops slowly to 100-200 and the CPU and Network Bandwidth drop to < 5%. (During this time the TCP retransmission level is null).

The scan engine is a dedicated MVM-3000 (scan engine only).

How can we avoid the FSL drops and why they happen?

Thanks in advance

RD

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Re: WHAM Checks and SMB bottleneck

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Hi RD,

Sometimes this can be attributed to memory throttling.  We'd need to see the logs to be sure.

Can you open a Service Request, connect the daily log, and post the SR # here.

I can have a look at it.

-Cathy

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Re: WHAM Checks and SMB bottleneck

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Hi RD,

Sometimes this can be attributed to memory throttling.  We'd need to see the logs to be sure.

Can you open a Service Request, connect the daily log, and post the SR # here.

I can have a look at it.

-Cathy

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Re: WHAM Checks and SMB bottleneck

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Hello Cathy.

I've PM you with the requested details.

Thanks in advance.

RD

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