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See Manage datastore service levels with datastore tiers
To display datastore tiers for hypervisor storage service levels:
Go to Infrastructure → Private
Select a datacenter
Go to Servers view → Datastore tiers
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To manage the datastores of the hypervisor in tiers:
Go to Servers
Edit the hypervisor
To display a list of enterprises with access to a datastore tier, edit the tier and go to Enterprise access.