Data Domain Gateway Systems
35
Troubleshooting and Maintenance
Troubleshooting and Maintenance
This section covers the following:
•
“Troubleshooting Installation Problems”
•
“Recover from External Storage Array Controller Failure”
•
“Disconnecting the Fibre Channel”
Troubleshooting Installation Problems
Problems during installation (or the loss of access to a configured LUN) cause the Data Domain
system to stop booting and display a troubleshooting menu with the title of
System
Misconfigured
. Possible problems are:
•
The card is faulty.
•
The cables are not properly connected.
•
If the Data Domain system is in a switch zone, the zone may not have the correct WWNs for
the ports on the card. You can get the WWNs from the name server for the switch. The name
server logs the WWN of all attempted logins. If switch zoning is the problem, update zoning
with the new WWNs and boot the Data Domain system again.
Call Data Domain Technical Support for further troubleshooting.
Recover from External Storage Array Controller Failure
If an external storage array controller fails, the LUNs can be presented to the Data Domain
Gateway system by another controller.
Use the following procedure:
1.
Shut down the Data Domain Gateway system.
2.
Make changes to the external storage such as switch zoning, LUN trespass, and so on, to
present the LUNs through another storage controller Fibre Channel port. Use the same Host
LUN IDs and a different WWPN.
3.
Follow the steps in this chapter to reinstall.
