find free devices with:
ioscan -funCdisk|grep dsk|awk '{print $1}'|xargs -i pvdisplay {} >/dev/null
note: use the raw device
pvcreate /dev/rdsk/c32t0d3
pvcreate /dev/rdsk/c34t0d3
pvcreate /dev/rdsk/c36t0d3
pvcreate /dev/rdsk/c38t0d3
mkdir /dev/vg_dbback
major number is 64 for lvm find minor number with
ll /dev/vg*/group
mknod /dev/vg_dbback/group c 64 0x040000
create and extend vg
vgcreate -s 32 vg_dbback /dev/dsk/c32t0d3
vgextend vg_dbback /dev/dsk/c34t0d3 /dev/dsk/c36t0d3 /dev/dsk/c38t0d3
find PE from vgdisplay
lvcreate -l 19517 -n lv_rman /dev/vg_dbback
newfs -F vxfs -o largefiles /dev/vg_dbback/rlv_rman
mkdir /rman_tmp
mount /dev/vg_dbback/lv_rman /rman_tmp
rsync -av /rman/* /rman_tmp
rsync -av --exclude='*.arc' /rman/* /rman_tmp
--exclude='*.FOO'