US Robotics 7931 Betriebsanweisung PDF herunterladen (Seite 274)

250 Sun StorageTek SAM Archive Configuration and Administration Guide • Version 4, Update 6, 04/07

RAID Redundant array of independent disks. A disk technology that uses several

independent disks to reliably store files. It can protect against data loss from a

single disk failure, can provide a fault-tolerant disk environment, and can

provide higher throughput than individual disks.

recycler A Sun StorageTek SAM utility that reclaims space on cartridges that is

occupied by expired archive copies.

release priority The priority according to which a file in a file system is released after being

archived. Release priority is calculated by multiplication of various weights of

file properties and then summation of the results.

releaser A Sun StorageTek SAM component that identifies archived files and releases

their disk cache copies, thus making more disk cache space available. The

releaser automatically regulates the amount of online disk storage according to

high and low thresholds.

remote procedure call See RPC.

removable media file A special type of user file that can be accessed directly from where it resides on

a removable media cartridge, such as magnetic tape or optical disk cartridge.

Also used for writing archive and stage file data.

robot The portion of an automated library that moves cartridges between storage

slots and drives. Also called a transport.

round-robin A data access method in which entire files are written to logical disks in a

sequential fashion. When a single file is written to disk, the entire file is written

to the first logical disk. The second file is written to the next logical disk, and

so on. The size of each file determines the size of the I/O.

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US Robotics 7931 Betriebsanweisung Seite 274