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Scalar 24 Installation and Operation Guide 75

Sequential Sequential mode is used with host software applications that recognize tape

drives, but do not recognize a library media changer. In this mode, the

library (not the host application software) keeps track of the tape locations

and manages the insertion and removal of tape media to the drives. When

a backup is preformed using Sequential mode, data is written to the tapes

in the order they are stored in the library.

If you are operating in Sequential mode, your library will not be recognized

by a host. You must use the Command menu to start and stop this mode.

If you set your mode to Sequential, you will need to configure the sequential

options. For more information on configuring sequential options, see

Sequential

on page 106.

LUN LUN mode is used with host software applications that recognize the

Medium Changer Logical Unit presented by a tape drive with LUN-1

capability. It is the capability of a tape drive to present both a SCSI

Streaming device on Logical Unit Number 0 (LUN-0) as well as a SCSI

Medium Changer device on LUN-1, that allows an application to

communicate with and control both devices by using a single path to the

drive. This capability is independent of the physical transport layer, and

allows more than one control path to library.

Selection Description/Result

1 From the Setup menu, highlight and

press .

Configures library operational access modes.

2 Press and to select Mode.

3 Press to move to the next field.

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Quantum Scalar 24 Spezifikationen Seite 83