HP Fabric Clustering System HP-UX Administrator's Guide, March 2008

Deleting Log Files.................................................................................................................95
Deleting Image Files.............................................................................................................96
Managing Log Files....................................................................................................................97
Event Message Types............................................................................................................97
Understanding the Log Format..................................................................................................97
Uploading Log Files...................................................................................................................97
Uploading Files Using the CLI.............................................................................................97
Administering the System...............................................................................................................98
Switching User Identity..............................................................................................................98
Notifying Users..........................................................................................................................99
Broadcasting Messages to Users...........................................................................................99
Sending Messages to Individual Users.................................................................................99
Creating User Accounts............................................................................................................100
About User Accounts..........................................................................................................100
Understanding Usernames and Passwords........................................................................100
Setting or Changing a Password.........................................................................................100
Displaying User Information..............................................................................................101
Adding New Users.............................................................................................................101
Deleting a User Account.....................................................................................................102
User Account Configuration Commands...........................................................................103
Community Strings ............................................................................................................103
Using DNS Services..................................................................................................................104
About DNS Services............................................................................................................104
Setting Administrative Roles....................................................................................................104
About Roles and Privileges.................................................................................................104
Understanding Permission Levels......................................................................................104
Changing Privilege Access-Levels......................................................................................104
Setting the System Clock..........................................................................................................105
Setting Time Through the CLI............................................................................................106
Setting the NTP Servers to Maintain the System Clock...........................................................106
CLI Procedure.....................................................................................................................106
Rebooting the System...............................................................................................................106
Reboot the System Through the CLI...................................................................................107
7 Monitoring and Troubleshooting..............................................................................109
Diagnosing Problems..........................................................................................................................109
LED Color, Behavior, and Meaning...............................................................................................110
HP Fabric Switch Cluster Connection LEDs............................................................................110
HP Fabric Switch System Status...............................................................................................110
Power Supply Troubleshooting................................................................................................112
Ethernet Management Port LEDs.............................................................................................113
HP Fabric HCA Connection LEDs...........................................................................................113
Determining Whether the HCA or Cable is Faulty.......................................................................115
Determining if the Switch is Faulty...............................................................................................115
Next Steps......................................................................................................................................116
Monitoring and Troubleshooting the HP-UX Host............................................................................116
HP-UX Host Troubleshooting Procedure......................................................................................116
Monitoring and Troubleshooting IPoIB.........................................................................................121
nettl Sample Log Output..........................................................................................................121
Sample IB Logs....................................................................................................................121
Sample IPoIB Logs..............................................................................................................122
Linkloop Command.................................................................................................................123
Known Problems......................................................................................................................123
Monitoring and Troubleshooting the Switch......................................................................................124
6 Table of Contents