HP Hitachi Dynamic Link Manager Software - Manual (Page 235)

3. Creating an HDLM Environment
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/dev/sda1 /boot ext3 defaults 1 2
:
:
5. Update the information about the volume group.
Execute the following command to update the information about the volume
group.
# vgscan
Reading all physical volumes. This may take a while...
Found volume group "VolGroup00" using metadata type lvm2
6. Check the relationship between the volume group and HDLM devices.
Execute the following command to make sure that the physical volumes that make
up the volume group are HDLM devices.