Installation guide

Setting Up I/O Channel Separation
HP-UX version 11.00.03 Mirroring Data 4-9
4. Extend the volume group to include the second physical volume group, lsb1.
To do this, enter
vgextend -g lsb1 vgdata /dev/dsk/c1t2d0 /dev/dsk/c1t3d0
This statement adds a second physical volume group called lsb1 to the
volume group vgdata. lsb1 contains two disks on logical SCSI bus 1,
c1t2d0 and c1t3d0.
5. Create logical volumes with strict physical volume group allocation. To do
this, enter
lvcreate -n data1 -m 1 -s g -L 800 vgdata
This statement creates the data1 logical volume within the vgdata volume
group. data1 (-n data1) has 1 mirror (-m 1), strict physical volume group
allocation (-s g), and a size of 800 MB (-L 800).
The physical extents of each logical extent in the logical volume will be allocated
to disks in different physical volume groups.
For more information about options for lvcreate, see the lvcreate(1M) man page.