HP-UX Virtual Partitions Administrator's Guide (includes A.03.05 and A.04.05)

vparmodify Error: “-a cpu::1”: One or more unbound CPUs were not
available when virtual partition vpar3 was booted. You must shutdown
the partition to add them.
Although two unbound CPUs are available, their hardware paths are x03 and x04. But the
kernel entries for vpar3 are x06, x07, and x08. Therefore, the command will fail.
The Workaround: Reboot the Target Virtual Partition
Because unbound CPU kernel entries are created when the target partition is booted, you can
reboot the target partition so that kernel entries created correctly reflect the available unbound
CPUs.
In our example, if we want to add an unbound CPU to vpar3, we can reboot vpar3:
vpar3# vparstatus
vpar3# shutdown -r
When vpar3 boots again, its kernel will create the correct entries for the unbound CPUs, which
are now at x03 and x04. The configuration becomes:
vpar4vpar3vpar1
Virtual Partition
x06
x07
x08
x05x01
x02
Paths of Bound CPU(s)
(none)
x03
x04
x06
x07x08
Unbound CPU Kernel Entries
unbound CPUs are now at x03 and x04
Paths of Unbound CPUs
Because the unbound CPUs are at x03 and x04 and the kernel entries for vpar3 are x03 and
x04, the command to add an unbound CPU to vpar3
# vparmodify -a vpar3 -a cpu::1
now will be successful.
Cause 305