FlashCopy Logical Drive

A FlashCopy logical drive is a logical point-in-time image of another logical drive, called a base logical drive , in the storage subsystem. A FlashCopy is the logical equivalent of a complete physical copy, but you create it much more quickly than a physical copy and it requires less disk space.

Because a FlashCopy is a host-addressable logical drive, you can perform backups using the FlashCopy while the base logical drive remains online and user-accessible. In addition, you can write to the FlashCopy logical drive to perform application testing or scenario development and analysis.