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Swap file on Windows Server VM guest sizing

Posted on 2014-11-03
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Last Modified: 2014-11-04
Hi,

My VMFS data store is currently hosted on the Flash Storage array so the disk performance is not a problem to handle the load of 25 up to 30 VMs per VMFS data store.

So does the Windows swap file (pagefile.sys) still required to be created 1.5x of the total vRAM assigned on the C:\ for all Windows Server VMs ?
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Andrew Hancock (VMware vExpert / EE MVE) earned 500 total points
ID: 40420731
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by:Senior IT System Engineer
ID: 40420742
yeah, my initial understanding is that pagefile.sys is required for the crash dump to be created, hecne I cannot even move the pagefile.sys into a different drive.

but as for disk space utilization, it was set as 1.5x from the default assigned vRAM by my predecessor.
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LVL 118
ID: 40420745
1.5x is a myth, as well as disable it!

See the Articles!

1.5x came from Admins, see-ing originally Windows set it to 1.5x times memory, on older OSes, and old habits die hard it IT, because people do not want to research and admit, they are wrong!
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by:Senior IT System Engineer
ID: 40420756
haha... this is happening on the new company I work on. so all of the Windows Server 2008 R2 terminal servers RDS around 25035 VMs they all have this large file on their C: drive.

My initial thought is that let the system manage the size and do not disable it, because when the page file is disabled then there will be no crash dump created.

So is there any way to turn it off in bulk? or does it require VM reboot to shrink the size?
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LVL 118
ID: 40420770
You must change, and reboot the server, to change the pagefile because it's written to disk at OS start!
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