HP-UX Reference (11i v3 07/02) - 1M System Administration Commands N-Z (vol 4)

vgcreate(1M) vgcreate(1M)

EXAMPLES

Create a volume group named /dev/vg00 containing two physical volumes with extent size set to 2 MB,

from scratch.

First, create the directory /dev/vg00 with the character special ﬁle called

group.

mkdir /dev/vg00

mknod /dev/vg00/group c 64 0x030000

The minor number for the group ﬁle should be unique among all the volume groups on the system.

It has the format 0xNN0000

, where NN runs from 00 to ff.

Initialize the disks using

pvcreate.

pvcreate /dev/rdsk/c1t0d0

pvcreate /dev/rdsk/c1t2d0

Create the volume group.

vgcreate -s 2 /dev/vg00 /dev/dsk/c1t0d0 /dev/dsk/c1t2d0

Create a volume group named /dev/vg01 that can contain a maximum of three logical volumes,

with extent size set to 8 MB:

vgcreate -l 3 -s 8 /dev/vg01 /dev/dsk/c3t4d0

Create a volume group named /dev/vg00 and a physical volume group named PVG0 with two phy-

sical volumes:

vgcreate -g PVG0 /dev/vg00 /dev/dsk/c1t0d0 /dev/dsk/c2t0d0

Using the PVLinks feature to create a volume group named /dev/vg00 with a physical volume that

can be referenced by two different paths. /dev/dsk/c3t0d0

and /dev/dsk/c4t0d0 refer to

the same physical volume, accessed via different controller hardware paths. In this example,

/dev/dsk/c3t0d0 becomes the

primary link to the physical volume. /dev/dsk/c4t0d0

becomes an alternate link to the physical volume.

vgcreate /dev/vg00 /dev/dsk/c3t0d0 /dev/dsk/c4t0d0