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Volume group

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Volume group

What is the correct procedure to add a volume group on VA7410 ?
Vincent Fleming
Honored Contributor

Re: Volume group

A VA7410 has 2 volume groups - no more, no less. You can't configure that.
No matter where you go, there you are.
Uwe Zessin
Honored Contributor

Re: Volume group

Are you both talking about the same thing?

VA7xx0 storage arrays deal with what is called 'redundancy groups'.
When talking about a 'volume group' it is usually a construct at operating system level, although some disk arrays use that term as well.

Re: Volume group

I want somethigs like "What is the correct procedure to remove a volume group?"

but for add a volume group
Uwe Zessin
Honored Contributor

Re: Volume group

Hello Alin,

I'm not a HP-UX administrator, so I can't tell the steps, but I think I have found a useful reference:
Joseph Loo
Honored Contributor

Re: Volume group


u may like to follow this:

what you do not see does not mean you should not believe
Honored Contributor

Re: Volume group

Volume group is nothing to do with VA7xxx.
Once the LUN is created (and assigned) to the host, the host see this LUN as a DISK. Then you have to follow the procedure from OS.

Identify the unused disks.
ioscan -fnC disk (list all the disks).
vgdisplay -v (displays used disks).
Please note if the VA is accesses by more than one host you may see all the disks which used by other systems too. It doesn't mean that all are unused.

pvcreate /dev/rdsk/cxtxdx
mkdir /dev/vgxx
mknod /dev/vgxx/group c 64 0xyy0000
(yy is Vg id, unique within the system)
vgcreate /dev/vgxx /dev/dsk/cxtxdx
lvcreate -L -n /dev/vgxx
newfs -F /dev/vgxx/r
mount /dev/vgxx/ /mount_point
Edit /etc/fstab if you need them always.

You can also do from sam if not familier with LVM comands

Attitude (not aptitude) determines altitude.
Honored Contributor

Re: Volume group


You might have to do a

insf -e

or insf -C disk before the ioscan.

Rest everything looks fine!!!

practice makes a man perfect!!!