The following steps detail how to enable vSAN to provision the Virtual Machine Swap files as thin. vSAN Sparse Swap Files allow you to conserve space in the vSAN datastore by only consuming vSAN storage as the swap gets used i.e instead of leaving as default thick swap files which means for example when you create a VM with 32GB of memory this results in the creation of a 32GB virtual swap file (.vswp) unless of course you have configured reservations. You can see how quickly your vSAN datastore could fill if there are many hundreds of VM’s created in this default manner.
Steps to to enable provisioning of virtual machine swap files on vSAN as thin:
From the vSphere Client
1. In the Navigator, click Hosts and Clusters and expand the entire cluster tree.
2. Select the first host in the clsuter.
3. Click the Configure tab->System->Advanced System Settings.
4. Click the Edit button. Continue reading