In certain situations you need to know the exact byte size of a volume. Unfortunately the GUI does not provide exact sizing.
This can become a problem when setting up global or metro mirroring. The volume that you are copying the data to has to be the exact
size of the original volume. If it is not, the setup of the mirror will fail.
At this point the only way to figure out the exact size of a volume is through the CLI.
The following command will give you the exact byte size
svcinfo lsvdisk -bytes nameofthevolume