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Veritas InfoScale™ 7.4 Installation Guide - Solaris

Last Published: 2019-02-26

Product(s): InfoScale & Storage Foundation (7.4)

Platform: Solaris

Disabling the abort sequence on SPARC systems

The topic applies to VCS.

Most UNIX operating systems provide a method to perform a "break" or "console abort." The inherent problem when you abort a hung system is that it ceases to heartbeat in the cluster. When other cluster members believe that the aborted node is a failed node, these cluster members may begin corrective action.

Keep the following points in mind:

The only action that you must perform following a system abort is to reset the system to achieve the following:
- Preserve data integrity
- Prevent the cluster from taking additional corrective actions
Do not resume the processor as cluster membership may have changed and failover actions may already be in progress.
To remove this potential problem on SPARC systems, you should alias the go function in the OpenBoot eeprom to display a message.

To alias the go function to display a message

At the ok prompt, enter:
```
nvedit
```
Press Ctrl+L to display the current contents of the nvramrc buffer.
Press Ctrl+N until the editor displays the last line of the buffer.

Add the following lines exactly as shown. Press Enter after adding each line.

." Aliasing the OpenBoot 'go' command! "
: go ." It is inadvisable to use the 'go' command in a clustered 
environment. " cr
." Please use the 'power-off' or 'reset-all' commands instead. " 
cr
." Thank you, from your friendly neighborhood sysadmin. " ;

Press Ctrl+C to exit the nvramrc editor.
To verify that no errors exist, type the nvrun command. You should see only the following text:
```
Aliasing the OpenBoot 'go' command!
```
Type the nvstore command to commit your changes to the non-volatile RAM (NVRAM) for use in subsequent reboots.
After you perform these commands, at reboot you see this output:
```
Aliasing the OpenBoot 'go' command! go isn't unique.
```