From the vsphere web client home click policies and profiles vm storage policies.
Vsan storage policy change.
By changing the policy as demonstrated in the video you can simply increase the stripe width for all virtual machines.
To edit the policy you must have the storage policy privileges that include the view and update privileges.
You cannot apply the default storage policy to non vsan datastores such as nfs or a vmfs datastore because the default virtual machine storage policy is compatible with any vsan datastore in the vcenter server you can move your virtual machine objects provisioned with the default policy to any vsan datastore in the vcenter server.
Click create a new storage policy select the capabilities.
It is actually really straight forward.
You can change the default storage policy for a selected virtual volumes or vsan datastore.
If you configure the object space reservation then reservation will be done on the vsan datastore for the specified object or the vm on which this policy is assigned.
On the vm storage policies tab click the storage policy you want to change.
Prerequisites verify that the vm storage policy you want to assign as the default policy to the vsan datastore meets the requirements of virtual machines in the vsan cluster.
Click the virtual machine whose policy you want to modify.
Vsan 6 7 update 3 and later manages policy changes to reduce the amount of transient space consumed across the cluster.
You can change the default storage policy for a selected vsan datastore.
Virtual san fails to provision a virtual machine when the policy requirements are not met but it successfully creates the user defined storage policy.
Transient capacity is generated when vsan reconfigures objects for a policy change.
How vsan manages policy changes.
When editing the policy you cannot change the name of the policy or the vsan storage provider specification.
The vsan default policy only applies to vsan datastores.
Another scenario is when an existing storage policy that is assigned to one or more vms is modified.
When you modify a policy the change is accepted but not applied immediately.
You can see the list of virtual machines that use this storage policy.
Click the vms tab and click virtual machines.
Because the managed storage policy for non elastic vsan clusters varies based on cluster size adding or removing hosts will trigger a storage policy reconfiguration if it changes the size of the cluster so that it requires a different policy.
For virtual volumes and vsan datastores vmware provides storage policies that are used as the default during the virtual machine provisioning.
Create a new policy go to vm storage policies.
In both cases vsan will use additional capacity to make the necessary changes to components to comply with the assigned storage policy.
The policy is editable.
In the vsphere web client.
