Add multiple datastores to a service level

You can edit a datastore tier and select multiple hypervisor datastores to add them to this service level.

To add multiple datastores to a tier:

Go to Infrastructure → Private → select datacenter → Datastore tiers
Select a datastore tier
Click the + add button in the Datastores pane on the right
From the popup list, select the Datastores to add
Click Add

Troubleshooting

Generally, you cannot add datastores with managed VMs deployed on them to a datastore tier
Exception: if a datastore with managed VMs deployed on it does not have a tier (e.g. as a result of datastore synchronization), you can assign it to a tier and the platform will automatically assign all disks to that tier

You can also add datastore tiers to services levels when you create or edit a hypervisor. See Compute in Datacenters