Service manual

3-32 AlphaServer GS80/160/320 Service Manual
Although you can power off a partition using the SCM power off – par x
command, use the SRM power off command because it stops all CPU activity
and leaves QBBs in a quiet, clean state.
Example 3– 18 Power off cpu <n> Command
P00>>> power off cpu 8
powering off CPU 8 (CPU 0 in QBB 2)
P00>>> QBB2 Powering off CPU0
P00>>> scm show csb
.
.
c7 CPU3/SROM T4.2-7 ON
c4 IOR0 ON
32 PSM T04.7 ( 11.23/01:03) T4.2 (09.08) ON SrvSw: NORMAL
32 XSROM T04.7 (11.23/01:55)
c8 CPU0/SROM T4.2-7 OFF
c9 CPU1/SROM T4.2-7 ON
.
.
P00>>>
Example 3– 19 Power on cpu <n> Command
P00>>> power on cpu 8
powering on CPU 8 (CPU 0 in QBB 2)
P00>>> QBB2 Powering on CPU0
P00>>> scm show csb
.
.
c7 CPU3/SROM T4.2-7 ON
c4 IOR0 ON
32 PSM T04.7 ( 11.23/01:03) T4.2 (09.08) ON SrvSw: NORMAL
32 XSROM T04.7 (11.23/01:55)
c8 CPU0/SROM T4.2-7 ON
c9 CPU1/SROM T4.2-7 ON
.
.
P00>>>
The power off cpu 8 command powers off CPU 0 in QBB2. C8 is the csb
address of CPU0 in QBB2 and therefore, cpu 8 is used in the command.
The scm show CPU command shows that the CPU is OFF.
The power on cpu 8 command powers on CPU 0 in QBB2. C8 is the csb
address of CPU0 in QBB2 and therefore, cpu 8 is used in the command.
The scm show CPU command shows that the CPU is ON.