OpenVMS Cluster Systems - OpenVMS Systems - HP

Building Large OpenVMS Cluster Systems
9.4 Configuring and Booting Satellite Nodes
Table 9–8 (Cont.) Controlling Satellite Booting
Method Comments
Bring satellites to console prompt on shutdown
Use any of the following methods to halt a satellite so that it halts
(rather than reboots) upon restoration of power.
1 Use the VAXcluster Console System (VCS).
2 Stop in console mode upon Halt or powerup:
For Alpha computers:
>>> (SET AUTO_ACTION HALT)
For VAX 3100 or VAX 4000 series computers:
>>> (SET HALT 3)
For VAX 2000 series computers:
>>> TEST 53
2 ? >>> 3
3 Set up a satellite so that it will stop in console mode when a
HALT instruction is executed according to the instructions
in the following list.
a. Enter the following NCP commands so that a reboot
will load an image that does a HALT instruction:
$ MCR NCP
NCP> CLEAR NODE node LOAD ASSIST PARAMETER
NCP> CLEAR NODE node LOAD ASSIST AGENT
NCP> SET NODE node LOAD FILE -
_ MOM$LOAD:READ_ADDR.SYS
b. Shut down the satellite, and specify an immediate
reboot using the following SYSMAN command:
$ MCR SYSMAN
SYSMAN> SET ENVIRONMENT/NODE=satellite
SYSMAN> DO @SYS$UPDATE:AUTOGEN REBOOT
c. When you want to allow the satellite to boot normally,
enter the following NCP commands so that OpenVMS
will be loaded later:
$ MCR NCP
NCP> SET NODE satellite ALL
9–12 Building Large OpenVMS Cluster Systems
If you plan to use the DECnet Trigger operation, it
is important to use a program to perform a HALT
instruction that causes the satellite to enter console
mode. This is because systems that support remote
triggering only support it while the system is in
console mode.
1. Some, but not all, satellites can be set up
so they halt upon restoration of power or
execution of a HALT instruction rather than
automatically rebooting.
Note: You need to enter the SET commands
only once on each system because the settings
are saved in nonvolatile RAM.
2. The READ_ADDR.SYS program, which is
normally used to find out the Ethernet address
of a satellite node, also executes a HALT
instruction upon its completion.
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