IIS log file compression

Question

IIS log file compression

Henning Svane 26

Hi

I have tried to create a folder where compression is enabled on it's own disk.

The disk is 30GB, but when I save on it, it runs full with less than 30GB uncompressed log files.

Microsoft suggested this to be the way to save log file without use alot of space, but I cannot get it to work.

How can this happen? and what to do?

Regards

Henning

Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2023-02-21T09:38:44.27+00:00
Hi @Henning Svane ,

Do you mean the "compress contents to save disk space" feature enabled on the folder, but failed?

According to the documentation, if a folder already contains a lot of data, it may take some time for the computer to compress its contents. In addition, users in other similar threads have indicated that compression can take hours to days, depending on the amount and type of data.

Are there any related error popups indicating that your compression failed? You can view related events through Event Viewer, and perhaps you can share screenshots after removing all private information, such as domain names and email addresses.

And this guide also provides other ways to mitigate the large disk space consumed by IIS log files, such as:

Move the log folder to the remote system.

Follow the script to delete the old log files.

Delete old log files through the IIS Log File Cleaner.

Hope it helps you!

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread

2 answers

Your answer

Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2023-02-21T09:38:44.27+00:00

Hi @Henning Svane ,

Do you mean the "compress contents to save disk space" feature enabled on the folder, but failed?

According to the documentation, if a folder already contains a lot of data, it may take some time for the computer to compress its contents. In addition, users in other similar threads have indicated that compression can take hours to days, depending on the amount and type of data.

Are there any related error popups indicating that your compression failed? You can view related events through Event Viewer, and perhaps you can share screenshots after removing all private information, such as domain names and email addresses.

And this guide also provides other ways to mitigate the large disk space consumed by IIS log files, such as:

Move the log folder to the remote system.

Follow the script to delete the old log files.

Delete old log files through the IIS Log File Cleaner.

Hope it helps you!

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread

Answer 1

Henning Svane 26

Hi

Thanks for replying.

No I made a new drive only for this purpose to store logs.

First i made the drive as a compressed drive but it behaved not as I expected as after I copied 20 GB uncompressed to the drive it says it was compress to about 8GB but the drive said it was full and show 29,7GB. Then I reformated the drive at made it normal bur the folder compressed to see if that made any difference. And it didnot.

So now my question why can I only store 8GB on a 30GB disk what is all the rest if disk space used for.

I was hoping that I could use all 30GB and not have a over head like this.

My hope is I am doing somthing wrong, but what, as it is quit simple to enable compression.

Hope this explains better.

Regards

Henning

Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2023-02-21T09:38:32.69+00:00

Hi，

Thank you for posting your question on the Microsoft Q&A platform!

Exchange Server is primarily concerned with technical issues related to the management, monitoring, and performance of Exchange Server.

Based on your further description, your issue is more relevant to Windows Server. Therefore, I will add the Windows Server tag so that other Windows server experts can better help solve your problem.

Thanks for your understanding and hope your issue would be resolved soon！

Answer 2

Sorry for dobbel posting.

Hi

Thanks for replying

No I made a new drive only for this purpose to store logs.

First i made the drive as a compressed drive but it behaved not as I expected as after I copied 20 GB uncompressed to the drive it says it was compress to about 8GB but the drive said it was full and show 29,7GB. Then I reformated the drive at made it normal bur the folder compressed to see if that made any difference. And it didnot.

So now my question why can I only store 8GB on a 30GB disk what is all the rest if disk space used for.

I was hoping that I could use all 30GB and not have a over head like this.

My hope is I am doing somthing wrong, but what, as it is quit simple to enable compression.

Hope this explains better.

Regards

Henning

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IIS log file compression

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