Administrator Guide

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.
Upgrade of Dell Unisphere Central
In Dell Unisphere Central, certificates are based on IP addresses. After an upgrade to Dell Unisphere Central, the existing
certificates remain unchanged. If you need to modify the IP address of the host, the certificates need to be updated as
described in the following table:
IP Change Action Required
IP changes on Windows-based Unisphere
Central
If Unisphere Central is not registered with a name lookup service such
as DNS server or Active Directory, then Unisphere Central and VASA
certificates are based on the IP address of the Windows host. Before the
IP address of the Windows host is changed, you must first unregister the
VASA Provider. Then modify the IP address of the Windows host. Then
manually restart Unisphere Central to regenerate certificates based on the
new IP address. After the restart, you must re-register the VASA Provider.
IP changes on the Virtual Appliance On a Dell Unisphere Central Virtual Appliance, network changes such as IP
address happen through the Unisphere Central and hence Unisphere Central
is aware of the changes. You must first unregister and the VASA Provider,
then make the changes to the IP address. After the changes are done,
Unisphere Central restarts itself to regenerate certificates based on the new
IP address. You then must re-register the VASA Provider.
Switch from an IP Address to an FQDN on Dell
Unisphere Central
To switch the certificates to use the FQDN instead of the IP address of
the host, you must first unregister and the VASA Provider. Then register
the Unisphere Central host with a name lookup service. Then configure
the networking properties on the host. Then follow the Dell Unisphere
Central procedure for deleting existing certificates and restart the Unisphere
Central. After the restart, re-register the VASA Provider.
FQDN changes on Windows or Virtual Appliance If certificates are already using FQDN and you want to change the FQDN,
unregister VASA Provider first. Then make changes to the name lookup
service or Unisphere Central host (or both) for the new FQDN. Then follow
the old procedure for deleting certificates and restart Storage Manager.
Re-register VASA Provider after Unisphere Central is running.
NOTE: Failure to unregister the VASA Provider before making changes
in name lookup service results in initialization errors on vCenter for
certain services and causes VASA registration to fail.
Switching from FQDN to IP Address on
DellUnisphere Central
If you want to stop using FQDN and go back to using IP addresses,
unregister the VASA Provider first. Then make changes to the name lookup
service or Unisphere Central host (or both) to remove FQDN configuration.
Restart Unisphere Central for the changes to take effect and register VASA
Provider again.
NOTE: Failure to unregister the VASA Provider before making changes
in name lookup service results in initialization errors on vCenter for
certain services and causes VASA registration to fail.
Storage Center Administration 81