add device called lvdump1
[root@stlam61p]
:/home/root # lvchange -r n /dev/vg00/lvdump1
lvcreate -L <size in MB> -n lvdump1 /dev/vg00
# lvchange -C y /dev/vg00/lvdump1
Logical volume “/dev/vg00/lvdump1” has been successfully changed.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
# crashconf -a /dev/vg00/lvdump1
:/home/root # crashconf -v