topic Re: Creating Partitions in Operating System - HP-UX

Creating Partitions

Roger Lavender — Mon, 18 Oct 2004 10:02:19 GMT

I have received a new rp7420 which contains a single partition (0) (genesis probably) with the following:

parstatus -AC results - none unassigned

parstatus -p0 results:

Num=0
Status=Active
#cells=2
#I/O chassis=2
Core cell=cab0,cell1, partition 0

cab0,cell0 active base 2cpu 6GB mem
cab0,cell1 active core 2cpu 6GB mem = Par 0

"IF" I understand the guidance correctly, to create two (2) partitions I should:

# parmodify -p0 -d0 -B
# shutdown -R

then:

# parstatus -AC for info
# parcreate -c1:base:y:ri
# parmodify -p1 -P "Partition 1"
# parmodify -p1 -r0/0
# parmodify -p1 -b 1/0/1/1/0/1/1.6.0
# parstatus -V -p1
# shutdown -r

At this point I should have:

cab0,cell0 active base 2cpu 6GB mem = Par 1
cab0,cell1 active core 2cpu 6GB mem = Par 0

I should see both partitions from MP>CO. Am I anywhere close??? Need confirmation.

Roger

Re: Creating Partitions

melvyn burnard — Mon, 18 Oct 2004 10:12:48 GMT

# parmodify -p0 -d0 -B
This will delete cell 0 from the partition
leaving cell 1 in the partition

# parcreate -c1:base:y:ri
This will try to use cell 1 for the new parttion, change it to use cell 0.

# parmodify -p1 -P "Partition 1"
# parmodify -p1 -r0/0
# parmodify -p1 -b 1/0/1/1/0/1/1.6.0

why not have all of this on your parcreate command line?
parcreate -P "partition 1" -c :base:y:ri \
-r 0/0 -b 1/0/1/1/0/1/1.6.0

making sure that you are using the correct hardware paths. I think you may find that the boot device will actually be 0/0/1/1/0/1/1.6.0

# shutdown -r
You should not need to shutdown the running partion that you are issuing these commands on, just go in via the MP and bo the relevant partition, or add the -B option to the parcreate command.

Re: Creating Partitions

Geoff Wild — Mon, 18 Oct 2004 10:16:34 GMT

Seems close - are you following steps from:

"HP System Partitions Guide"

http://docs.hp.com/hpux/onlinedocs/5990-8170/5990-8170.html

Rgds...Geoff

Re: Creating Partitions

Roger Lavender — Mon, 18 Oct 2004 10:31:31 GMT

Geoff - Yes

burnard -

Bear with me. So, from the active partition:

# parmodify -p0 -d0 -B (remove cell 0)
# parcreate -p1 "Partition 1" -c0:base:y:ri -r0/0 -b 0/0/1/1/0/1/1.6.0
# shutdown -r

The reason I felt I need the "parstatus -AC" was to confirm the boot path - as you noted - prior to actually using it.

Will the existing OS in Partition 0 survive - i.e. be bootable after this?

Roger

Re: Creating Partitions

Roger Lavender — Mon, 18 Oct 2004 10:44:42 GMT

Correction:

# parcreate -P "Partition 1" -c0:base:y:ri -r0/0 -b 0/0/1/1/0/1/1.6.0

Roger

Re: Creating Partitions

melvyn burnard — Mon, 18 Oct 2004 10:52:39 GMT

# parmodify -p0 -d0 -B (remove cell 0)
fine
but you will need to do a shutdown -R to initiate a reconfiguration of the partioin to see that cell 0 has been removed

# shutdown -R 0

The partition should reboot, but watch it via the vfp, to check whether it comes up into BIB mode, in which case issue the BO command from the MP Command Menu

# parcreate -p1 "Partition 1" -c0:base:y:ri -r0/0 -b 0/0/1/1/0/1/1.6.0
# shutdown -r <<<<< Not necessary as this will reboot the current partition, and yoyu do not have to do this

You then need to go back to the MP, check the new partion is there, and possibly boot this if you have not added the -B option to the parcreate command

The other way is to use the parmgr GUI, in /opt/parmgr/bin

This provides a nice graphical environment to allow you to do this