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Unswapping swapped mem in Vsphere 6.0

03 Jun

An interesting article from yellow bricks on an undocumented feature in Vsphere 6.0 to allow you to swap out memory after contention is long gone. Previously, you either had to power cycle or vmotion your VM to get back memory into RAM.

http://www.yellow-bricks.com/2016/06/02/memory-pages-swapped-can-unswap/

However, my advice is always to avoid over-commit of memory as the last resort and manage the size your VM to avoid over-commit whenever possible. Ballooning and memory swapping into disk is one of the most performance hit activities that can happen to your environment compared or over-committing on CPU.

 

 

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Posted by on June 3, 2016 in vmware

 

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