User`s guide

3-24
User's Guide
Performing a Domain Memory Dump
The Dump command is used when the Operating System hangs and allows technicians to
diagnose software problems by saving domain memory.
Warning:
The Dump command should only be used if the Operating System is not able to respond to a
standard Power OFF command. The Dump command may result in domain data loss and file
corruption.
The Dump command does not power down domain hardware (automatic warm reboot).
The Operating System must be configured to accept a dump command. Refer to the
applicable documentation delivered with the Operating System for further details.
To perform a domain memory dump:
1. Click Domain Manager to open the Control pane.
2. Select the required domain. If RUNNING is displayed in the Domain Status panel, the
Dump button is accessible.
3. Click Dump to override the Operating System and dump domain core memory which will
be copied to the server hard disk for analysis. The Dump Confirmation dialog opens.
4. Click Yes to confirm the Dump command.
The Dump sequence results in a warm reboot of the domain BIOS, EFI and Operating
System (without closing running applications and saving data).
As the dump sequence progresses, dump steps and domain state are displayed in the
Domain Status panel, as shown in the following table.
Dump States
POWERED ON - LOADING BIOS
BIOS READY - STARTING EFI
EFI STARTED - BOOTING OS
RUNNING
Table 13. Dump states
Once the Dump sequence has been successfully completed, RUNNING is displayed in the
Domain Status panel and the Power Off, Reset and Force Power Off buttons become
accessible.
5. Repeat Steps 2 to 4 for each domain on which you want to perform a memory dump.
Note:
If an error message is displayed in the Domain Status panel, the Dump sequence has failed.
See What To Do if an Incident Occurs, on page 3-42.