Windows 2008R2 Paging File Issue
I am trying to move the pagefile onto a dedicated disk but, after moving the paging file and rebooting, a message pops up stating it has created a temporary paging file. Here is what I have configured, please advise if there is anything I have missed: Windows 2008R2 SP1 with 20GB of memory. It is to be used as RDS Session Host. B:\ is for the paging file C:\ is the System Drive Because I wanted to keep dump files, in case of system errors, I set the following within registry: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\CrashControl REG_SZ: DedicatedDumpFile Value: B:\DedicatedDumpFile.sys DWORD: DumpFileSize Value: 2060MB DWORD: IgnorePagefileSize Value: 1 Under Virtual memory settings, B:\ is configured for the paging file custom set to maximum size. C:\ drive is set to none. But, as I stated, every time I log on I get a message stating a temporary paging file was created on the C:\ drive which is not what I want. Can anyone help? Regards Mark
May 2nd, 2012 11:48am

A:\ and B:\ drive are set for floppy disk drives, may be that is why you are facing the issue, try changing the drive letter to D:\ or something elseThanks and Regards, Mukesh. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.
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May 2nd, 2012 1:27pm

I am trying to move the pagefile onto a dedicated disk but, after moving the paging file and rebooting, a message pops up stating it has created a temporary paging file. Here is what I have configured, please advise if there is anything I have missed: Windows 2008R2 SP1 with 20GB of memory. It is to be used as RDS Session Host. B:\ is for the paging file C:\ is the System Drive Because I wanted to keep dump files, in case of system errors, I set the following within registry: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\CrashControl REG_SZ: DedicatedDumpFile Value: B:\DedicatedDumpFile.sys DWORD: DumpFileSize Value: 2060MB DWORD: IgnorePagefileSize Value: 1 Under Virtual memory settings, B:\ is configured for the paging file custom set to maximum size. C:\ drive is set to none. But, as I stated, every time I log on I get a message stating a temporary paging file was created on the C:\ drive which is not what I want. Can anyone help? Regards Mark You would likely to get an error message " a temporary paging file was created " when there is not enough free space on drives. Also, its not suggested to completely remove paging file from C drive, instead you might want to split paging file on two different drives. You might come across unforeseen issues on OS if there is NO paging file set on C drive. Here is what I follow for setting paging file on servers; hope that info helps For WS 2003, C drive should have 40 GB disk irrespective of OS version and platform. C drive should have 4GB page file. For WS 2008/R2, C drive should have 66 GB disk irrespective of OS version and platform. C drive should have 6GB page file. As a best practice, you need to set page file 1.5 Times the RAM available on any Windows Servers. For instance, Say, you have 16 GB RAM on a server, 1.5 times the RAM 16 GB = 24 GB; you need to set 24 GB Page file on the Server. Now, how would you ditribute the page file ? Here is the way, You need create a separate Drive and split the Page file (other than the preset page file on C drive) For WS 2003, C drive already has 4 GB, now on a newly created drive set 20GB page file (i.e. 24 -4=20 GB), make sure you have at least 25 GB Drive to accomodate 20GB page file. For WS 2008/2, C drive already has 6 GB, now on a newly created drive set 18 GB page file (i.e. 24 -6=18 GB), make sure you have at least 23 - 25 GB Drive to accomodate 18GB page file. A UNIVERSE without WINDOWS is CHAOS ! This posting is provided "AS IS" with no warranties or guarantees and confers no rights. About Me ?
May 2nd, 2012 2:10pm

Thanks for reply Mukesh, I was under impression that drive letters A & B coudl now be used by Windows 2008R2 (& Windows 7). Maybe I was wrong? regards Mark
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May 2nd, 2012 2:54pm

Hi Santosh, Thanks for responding. I was under impression the paging file could now be kept on a completely different drive & that the issue with no paging file on the system drive, because of system errors, was resolved using the registry values that I mentioned I had used (see KB969028 ). As such shouldn't my setup with the dedicated dump file, sized at 2060MB for kernel dumps, work without the need to temporarily create a paging file on the system drive? Regards Mark
May 2nd, 2012 3:04pm

I was under impression that drive letters A & B coudl now be used by Windows 2008R2 (& Windows 7). -- As far as I know, drive letters have NO impact on paging files. You can use any free drive letters including A:\ and B:\ As such shouldn't my setup with the dedicated dump file, sized at 2060MB for kernel dumps, work without the need to temporarily create a paging file on the system drive? -- Memory dump files are by default will be created in %SystemRoot% (%SystemRoot%\MEMORY.DMP), this has no relation with paging file on C drive. You may disable paging file on C drive however, that is not recommended as I mentioned in my earlier reply. Also, please refer following articles to know more about memory dumps How to generate a kernel or a complete memory dump file in Windows Server 2008 and Windows Server 2008 R2 http://support.microsoft.com/kb/969028 How to use the DedicatedDumpFile registry value to overcome space limitations on the system drive when capturing a system memory dump http://blogs.msdn.com/b/ntdebugging/archive/2010/04/02/how-to-use-the-dedicateddumpfile-registry-value-to-overcome-space-limitations-on-the-system-drive-when-capturing-a-system-memory-dump.aspx A UNIVERSE without WINDOWS is CHAOS ! This posting is provided "AS IS" with no warranties or guarantees and confers no rights. About Me ?
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May 2nd, 2012 3:58pm

Hi Mukesh, I've had the time to change the drive letter for the paging file disk. Changed it to E:\, amended the registry settings I made to refer to E:\ and rebooted. I no longer get the message about temporarily creating a paging file. It would seem that Windows 2008R2 does not like putting the paging file on the B:\ drive. Thanks for the advice. Regards Mark
May 2nd, 2012 4:32pm

Hi Mukesh, I've had the time to change the drive letter for the paging file disk. Changed it to E:\, amended the registry settings I made to refer to E:\ and rebooted. I no longer get the message about temporarily creating a paging file. It would seem that Windows 2008R2 does not like putting the paging file on the B:\ drive. Thanks for the advice. Regards Mark I tried to reproduce the issue by moving paging file to B drive. Rebooted my test server ( 2008 R2 running on a VM ) couple times however, didn't get any errors. Perhaps, keeping memory dump file on B drive using registry entry must have caused the issue. Anyways, Good to know that, issue has been resolved :) A UNIVERSE without WINDOWS is CHAOS ! This posting is provided "AS IS" with no warranties or guarantees and confers no rights. About Me ?
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May 2nd, 2012 4:41pm

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