There are several methods used to store data on physical disks.
These methods organize data on the disk so the data can be stored
and retrieved efficiently. The basic method of disk organization
is called formatting. Formatting prepares
the hard disk so that files can be written to and retrieved from
the disk by using a prearranged storage pattern.
Hard disks are formatted, and information stored, in two ways: physical-storage
layout and logical-storage layout. Volume Manager uses the logical-storage
layout method. The types of storage layout supported
by Volume Manager are introduced in this chapter and described in
detail in “Storage Layout”.
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