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, using two
methods: physical-storage layout and logical-storage layout. VxVM uses
the logical-storage layout method. The types
of storage layout supported by VxVM are introduced in this
chapter.
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