Removable Storage

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The Removable Storage system is a new technology that enables multiple applications to share local libraries and tape or disk drives, thus providing better storage management functionality. With Removable Storage, you can use stand-alone storage devices; manage online media libraries and robotic changers; and track your removable tapes and disks. Stand-alone devices include CD-ROM, DVD-ROM, tape (4mm, DLT, 8mm, and others), and high-capacity disk drives.

Removable Storage also controls removable media within a single server system. In addition, it performs functions in conjunction with Backup and Remote Storage. A key aspect of Removable Storage is the ability of applications to create media pools that are owned and used by the application.

Storage devices are most often connected to systems by using small computer system interface (SCSI) adapters or integrated device electronics (IDE) interfaces, such as those used with most hard drives. New technologies that provide simpler use and faster throughput, such as Fiber Channel, IEEE 1394, and Intelligent I/O (I2O), are also being used with increasing frequency. Stand-alone devices are most commonly used with single user systems.

Libraries contain multiple drives using CD-ROM, DVD-ROM, magneto-optic (MO) discs, or tape. These are accompanied by robotic controls that provide extensive automation for managing individual pieces of media or storage. The capacities range from a small, three-disc CD-ROM autochanger to a tape or a disc library used with sophisticated applications inside a large corporation. Libraries are most commonly used with servers but are increasingly being attached to single user systems.

Tasks you can perform using Removable Storage include the following:

  • Tracking online and offline media

  • Mounting and dismounting media

  • Inserting and ejecting media to and from a library

  • Viewing the state of media and libraries

  • Creating media pools and setting media-pool properties

  • Setting security parameters for media and media pools

  • Performing library inventories

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Your backup software must be compatible with Removable Storage to make use of these features.