Administrator Guide

VASA Provider Restrictions

The following restrictions apply to the VASA provider:

• The Unisphere Central VASA provider can be registered to only one vCenter Server.

• All ESXi and vCenter Server requests to the VASA provider are mapped to a single Unisphere Central user.

• The VASA provider does not support user-defined storage profiles. Only default system-defined storage profiles can be used in VM

Storage Policies.

You can register the VASA provider on a vCenter server, and manage it from the Servers view of Storage Center.

• When initially registering a vCenter Server in the Unisphere Central client, select the Register VASA Provider checkbox.

• For a vCenter Server that is already registered in the in the Unisphere Central client, select Edit Settings and then select the

Unregister a VASA Provider

Unregister a VASA provider to remove it from vCenter.

Prerequisites

CAUTION: The VASA provider must be unregistered before you initiate any of these tasks:

• Any action related to uninstallation, migration, upgrade, reinstalling of Unisphere Central on same host with same IP

address

• Uninstalling Unisphere Central with the intention of reinstalling on another host

• Changing the Unisphere Central FQDN

• Changing the Unisphere Central IP address

Unregistering VASA will affects control plane operations on virtual volume VMs and datastores which are in use. It does

not affect data transfer between an ESXi host and the respective SAN storage.

Unregistering the VASA provider results in powered-off VVol VMs being shown as inaccessible and datastores as

inactive. To avoid prolonged control plane down time, minimize the period where the VASA provider remains

unregistered. After re-reregistration, there could be a delay for powered-off VMs and datastores to recover from being

inaccessible and inactive respectively.

Steps

1. Click the Servers view.

2. Select the Servers folder in the Servers pane.

3. Right-click the icon for the vCenter Server, and select Edit Settings.

The Edit VMware vCenter Server Settings dialog box opens.

4. Click Unregister VASA Provider.

5. Click OK.

Using Unisphere Central Certificates With VASA Provider

When you run the Register VASA Provider wizard, the URL of the VASA provider is automatically generated. This URL identifies the

host on which the

Data Collector is installed. The host is identified as either an IP address or Fully-Qualified Domain Name (FQDN).

Depending on how you installed or upgraded Unisphere Central or if you changed the host for the Data Collector, you might need to take

additional steps to update the certificates.

New Installation of Dell Unisphere Central

If Unisphere Central is registered with a name lookup service such as DNS server or Active Directory server, Unisphere Central certificates

are generated based on its FQDN. Any IP address changes do not affect certificates. If you change the FQDN, Unisphere Central must be

manually restarted if it is a Windows-based installation. It is automatically rebooted for the Virtual Appliance installation. If you were using

the VASA provider before the IP changes, you must unregister and then register VASA Provider manually.

Storage Center Administration