Identifying SPUs [ SPU Switchover/XL User's Guide ] MPE/iX 5.0 Documentation
SPU Switchover/XL User's Guide
Identifying SPUs
To configure a system in the SPU Switchover/XL environment, you must
first name the system and add it to the configuration file.
Adding an SPU
The ASYSTEM command enables you to add systems to the SPU Switchover/XL
environment. For ease of use, it is recommended that you identify the
system by its current network services name (or a variation of it);
however, the selected name can be no more than 8 characters in length.
To identify the system's current name, enter the NMMGR utility:
:NMMGR Return
Home this puts you at the command line
Command: @NODENAME Enter this displays the nodename screen
The local node name is displayed. To exit the NMMGR utility, enter:
Home Q Enter Enter
To name and add a system to the configuration file, ensure that you are
logged on as manager.sys on the home (configuring) system, and perform
the following:
1. Enter the SYSGEN utility:
: SYSGEN Return
2. Enter the SPU facility within SYSGEN:
sysgen> SPU Return
3. From the SPU facility use the ASYSTEM command to name and add the
home system (for example, Alpha) to the configuration:
spu> ASYSTEM SYSTEM=ALPHA Return
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NOTE The system name cannot exceed 8 characters in length.
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4. Enter the following to retain the entries in the configuration
file:
spu> HOLD Return
spu> E Return
sysgen> KEEP Return
Keeping to group CONFIG.SYS
Purge old configuration (yes/no)? Y Return
** Configuration files successfully saved **
sysgen> E Return
5. Log on to the alternate system as manager.sys and follow the above
steps to name and add the alternate system (for example, Beta) to
the configuration file.
Deleting an SPU
The DSYSTEM command enables you to delete systems from the SPU
Switchover/XL environment. You must specify a name that you previously
added with the ASYSTEM command. To delete the system name from the
configuration file, perform the following from the home (configuring)
system:
1. Enter the SYSGEN utility:
: SYSGEN Return
2. Enter the SPU facility within SYSGEN:
sysgen> SPU Return
3. From the SPU facility use the DSYSTEM command to identify and
delete the home system (Alpha) from the configuration:
spu> DSYSTEM SYSTEM=ALPHA Return
The system displays the following message if the system name
specified does not exist:
** Error ** System not in configuration
4. Enter the following to retain the entries in the configuration
file:
spu> HOLD Return
spu> E Return
sysgen> KEEP Return
Keeping to group CONFIG.SYS
Purge old configuration (yes/no)? Y Return
** Configuration files successfully saved **
sysgen> E Return
5. Log on to the alternate system and follow the above steps to
delete the alternate system name (Beta) from the configuration
file.
MPE/iX 5.0 Documentation