topic Re: VPAR modify in Operating System - HP-UX

VPAR modify

Jatin Kapoor — Sun, 08 Apr 2007 16:40:01 GMT

have a rx8640
N par
i have 4 vpars with 8 slots each
out of the 8 slots 5 have cards in them.
I want to create another Vpar.
But before that i need to remove the empty slots allocated to the 4 vpars so i can use them with the CPU's and memory (New).
What process i need to follow can i use rad -q to remove the slots from the vpar.

Please guide me through.

Re: VPAR modify

melvyn burnard — Sun, 08 Apr 2007 17:35:10 GMT

identify the slots you wish to remove, using rad -q , vparstatus and ioscan.
Then halt one vpar, use vparmodify from another vpar to remove the required slot(s).
Reboot that vpar and verify.
Do the same for each other vpar that has slots assigned that you wish removed.

Re: VPAR modify

Jatin Kapoor — Tue, 10 Apr 2007 03:45:43 GMT

Can you give me exact steps as these are production boxes i need to work on.
I need to remove 2 empty slots from each of the vpars.
will i need to rebuild.
Is there any risk of loosing the vpars

Re: VPAR modify

Hareesh Kumar — Tue, 10 Apr 2007 04:41:46 GMT

Hi Jitin,

You can see the allacocated resources for a Vpar from the vprastatus -v comand output. Then get an idea about the cards which you eant to remove from each vpar and then use the vparmodify command to modify the VPDB.

vparmodify -p -d io:

Contact if you need further assistance.

Re: VPAR modify

Jatin Kapoor — Tue, 10 Apr 2007 06:46:27 GMT

Currently the virtual partitions (VPARs) are configured at the highest level possible so that each VPAR holds everything under a single PCI bus and a single core IO card.
Do you think still the empty slots can be freed after using vparmodify -p -d

Re: VPAR modify

IT_2007 — Tue, 10 Apr 2007 08:19:26 GMT

you can remove unused paths from exisitng vpars using SAM and then use them to create new vpar.

vparmodify can do the trick.

Re: VPAR modify

Jatin Kapoor — Tue, 10 Apr 2007 08:45:18 GMT

let me give the exact scenario.
4 i/o busses, 1 VPAR on each bus.

Bus 0 = vpxx.
Bus 1 = vpxx1.
Bus 2 = vpxx2,
Bus 3 = vpxx3

Each VPAR also has exclusive use of its own core i/o card, which houses a SCSI interface and a 1000-T lan interface used by ODBC connections on . Each VPAR uses 4 out of 8 slots in each bus, with 4 slots free.
Each VPAR has a 1000-T card plugged into the new network switch. This is a cold standby lan which is also used to ignite boot/create the partition.
Each VPAR has a 10GbE card plugged into the new network switch. This is the main database lan.

VPAR configuration allows for individual card slots to be dedicated to a partition, not just the whole bus. Specifying the whole bus was quick and easy for getting the cluster up and running in the first place and allows for expansion of each VPAR.

do you still feel it can be done using vparmodify

Re: VPAR modify

IT_2007 — Tue, 10 Apr 2007 08:51:07 GMT

Jatin,

You can remove IO slot specifying hardware path which is not in use.

vparmodify -p vpar1 -d IO:1/2

means delete 1/2 IO path for vpar1.

It is ok to remove unused IO paths.