Exchange Server virtual Memory

timgreen7077
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Just a quick question. I have a few exchange servers with 12 GB of Ram, and the virtual memory is set to be handled by the OS and it's located on the C: drive. I want to create a new vmdk about 20 GB and move the virtual page file to the new vmdk file, other than the reboot that may be required, can you see any issues with this change. I will manually set the paging on the 20GB drive instead of letting the OS.
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Top Expert 2015
Commented:
Hi timgreen.

Moving the page file will have no impact on the server as a whole, and I always recommend setting the pagefile yourself.

Is there a specific reason you are moving the pagefile to a separate vmdk?

If you are thinking performance, make sure it is created on a separate datastore on different disk. Otherwise you will get no better performance than you already are.
timgreen7077Exchange Engineer
Distinguished Expert 2018

Author

Commented:
i always feel that it's just a good practice and I agree on the different disk. Thanks for the reply

Commented:
Did you set it to be fixed size or use system managed value ?

Please be advised that if the swap file is on other drive, the more will be no memory dump or dump files created then the server crashed.
Top Expert 2015

Commented:
Hi ITSystemsEngineer,

That's not entirely accurate. In older versions (2003) you needed at least a portion of the page file on the system drive. In 2008, you needed to add a registry value pointing the dump file location to the same drive as the page file.

But since 2008 R2, this is no longer required.

You can test the system by doing a manual crash dump, this is done by pressing and holding ctrl then pressing scroll lock twice.

Kind regards

Guy
timgreen7077Exchange Engineer
Distinguished Expert 2018

Author

Commented:
This is being performed on a Windows 2012 server. I did see online that this is no longer needed. Thanks for the assistance.

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