This chapter provides information about using the Duo system. The Octane2 workstation was designed for a single user. This chapter helps you become aware of some of the idiosyncrasies that arise when two people use the Octane2 workstation simultaneously, and provides you with instructions for specific tasks.
Be sure you have read the README file on the Duo CD that directs you to the location of the release notes. The release notes, in turn, direct you to the correct software and patches, and any other information you may need to know before using the Duo system.
When using the Duo system, keep this information in mind:
Simultaneous use of head 0 and head 1 by users in the same login account is not supported.
System start up, shut down, and warning messages appear only on the primary head, as does the System Maintenance Menu.
When using the Toolchest > Find menu, do not use File QuickFind or Host QuickFind, as these appear simultaneously on both the primary and secondary heads. Instead, use Toolchest > Find > Search For Files.
If a System Administration tool launched from the desktop does not complete a function, despite being supplied with the root password, the same application may currently be running under a second account on the Duo system.
Table 6-1 lists more tasks with Duo-specific instructions.
Table 6-1. Tasks with Duo-Specific Instructions
Task | Instruction |
|---|---|
Determine the head on which you are running | From Toolchest > Desktop select Open UNIX Shell. At the prompt, type printenv DISPLAY. Look for the listing DISPLAY = 0.0 or DISPLAY = 1.0 . Head 0 is the primary head. Head 1 is the secondary head. |
System administration tasks | Use head 0. |
Logging in to a remote system from the secondary head (head 1) | In head 1 Toolchest > Desktop select Open UNIX Shell Log in to the remote system. Type: At the prompt, type: setenv DISPLAY localhost :1 (where localhost is the name of your Octane2 system). The remotely displayed information from the remote host will now display to the secondary head (head 1). Without entering this command, the remotely displayed information would display to the primary head (head 0).
When using rsh, use: (where localhost is the name of your Octane2 system). This command causes the output to appear on head 1.
To run an application on a remote host and display it on head 1, use: (where localhost is the name of your Octane2 system and applicationname is the application you are running). |
Using an icon to launch an application | Launch the application from the head you want to use. The icon always appears on the head from which it was launched. |
Changing a monitor setting | After changing the setting, always log out and then log back in. |
Hot plugging a mouse, keyboard, Spaceball, etc. | Hot plugging any serial device is not supported. (Hot plugging is attaching a device while the system is powered on.) |
Configuring ef0 and ef1 | ef0 and ef1 cannot be configured with the same hostname and IP address even though both interfaces are on the same system. |
Using audio when the Duo system is enabled | Audio is not supported when the Duo system is enabled. Power off the speakers when the Duo system is enabled. |
Using audio when the Octane2 workstation is used as a single seat | Audio is supported when the Octane2 workstation is used as a single seat, and the Duo system is disabled. |
For troubleshooting information about the Octane2 Duo system, see Chapter 7, “Troubleshooting the Duo Upgrade”.