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IIS Logs are getting larger

prashantsingh

Hi Team,

I am getting IIS logs around 200-250 MB each day.

Is it due to some issue that needs to be addressed or is it normal ?

Path: C:\inetpub\logs\LogFiles\W3SVC2\

Thanks

Prashant

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Accepted answers

All comments

KMSigma.SWI

The size of the logs is directly connected to the number of people connecting to the web site. I'm personally not a fan of large logs, so I've started changing mine to report hourly instead of daily. It's no performance gain/loss, but it makes the file sizes more manageable when I need to do work.

KMSigma.SWI

Sidebar: I'm also a fan of moving these (and other logs) to a different drive and enable deduplication on the drive. It adds a little bit of overhead on the processor once a day (I've not seen more than 2-4%). My theory is this: most logs are exclusively ASCII or Unicode text and most of those lines are repeated over and over again. Enabling and configuring deduplication on a server is a relatively trivial setup. If you're interested, I can point you to a post with more details.

prashantsingh

Thanks @KMSigma.SWI Could you please share the link of post you mentioned.

KMSigma.SWI

I wrote about how I personally do this two years ago. https://blog.kmsigma.com/2018/10/12/building-my-orion-server-scripting-edition-step-3-1/ You don't need to, nor should you do everything here.