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vMarkusK1985
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Hi,

I thinks that’s the normal behavior and not a Bottleneck.

I tried today a SnapShot with memory on a really fast Array and a Host without any Bottlenecks.

VM had 4 GB Memory in Idle State.

Task took about 2.5 minutes

If the snapshot includes the memory option, the ESX host writes the memory of the virtual machine to disk.

Note: The virtual machine is stunned throughout the duration of time the memory is being written. The length of time of the stun cannot be pre-calculated, and is dependent on the performance of the disk that has issue and the amount of memory being written. ESXi/ESX 4.x and later have shorter stun times when memory is being written. For more information, see
Taking a snapshot with virtual machine memory stuns the virtual machine while the memory is written ...
.

https://mycloudrevolution.com | https://twitter.com/vMarkus_K | https://github.com/vMarkusK

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