This topic contains information logical storage partitions.
When you create a logical volume, you specify its size in megabytes or gigabytes. The system allocates the number of logical partitions that are required to create a logical volume of at least the specified size. A logical partition is one or two physical partitions, depending on whether the logical volume is defined with mirroring enabled. If mirroring is disabled, there is only one copy of the logical volume (the default). In this case, there is a direct mapping of one logical partition to one physical partition. Each instance, including the first, is called a copy.