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

1600 MB1600 MB
Memory
0.8
1.10
1.2
0.0
0.4
I/O Paths (LBAs)
0.8.0.0.5.00.0.2.0.6.0
Boot Path
1.10.0.0.4.00.0.0.0
LAN
AUTOAUTO
Autoboot
To create and boot using an alternate partition database, perform the following:
1. Create the partition configuration and alternate partition database file.
winona1# vparcreate -p winsim1 -D /stand/vpdb.sim -a cpu::4 -a cpu:::4 -a mem::1600 -a io:0.0 -a io:0.4
-a io:0.0.2.0.6.0:BOOT
winona2# vparcreate -p winsim2 -D /stand/vpdb.sim -a cpu::4 -a cpu:::4 -a mem::1600 -a io:0.8 -a io:1.10
-a io: 1.2 -a io:0.8.0.0.5.0:BOOT
CAUTION: LBAs must be explicitly specified. The examples in this chapter use a
non-nPartitionable system. If using an nPartitionable system, read “Planning, Installing,
and Using vPars with an nPartitionable Server” (page 51).
The alternate partition database file is created if it does not exist.
NOTE: In order to boot from an alternate partition database file, the file must exist in
/stand of the disk from which you will boot the entire server.
2. Shutdown all the virtual partitions and reboot the server:
winona3# vparstatus ; shutdown -hy 0
winona2# vparstatus ; shutdown -hy 0
winona1# vparstatus ; shutdown -hy 0
MON> reboot
3. Interrupt the boot process and boot the Monitor /stand/vpmon specifying the -D alternate
partition database option and the -a autoboot option:
BCH> bo pri
interact with IPL: y
ISL> hpux /stand/vpmon -D /stand/vpdb.sim -a
The Monitor boots, reads the partition database file /stand/vpdb.sim, and copies the
partition configuration information into the Monitor’s memory. The local copy of the partition
database is now /stand/vpdb.sim (the same filename as what was read by the Monitor
at Monitor boot time).
Integrity NOTE: If you issue readdb /stand/vpdb.backup, the file that is actually read
is at /stand/boot.sys/stand/vpdb.backup. The vparcreate command transparently
creates the soft link from /stand/boot.sys/stand/<file> to /stand/<file>.
Therefore, if you backup the database file using the Unix cp command, a ln command also
should be executed to create the soft link. Otherwise it will not be possible to boot from the
backup database file.
Because the local copy is now /stand/vpdb.sim, you do not need to specify the -D
/stand/vpdb.sim option when performing vPars Monitor commands. For example, to
set the static attribute for the partition winsim2, the command is:
winsim2# vparmodify -p winsim2 -S static
168 Monitor and Shell Commands