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5157/5157 ACL S-Series Subsystems Installation/ Users Guide

Configuring and Operating the 5157 Tape Drive

4-2

cartridge are 20.0 GB, 35.0 GB with compression off, or 70.0 GB

with compression on.

Using DLTtape III tape the density defaults to 10.0 GB non-

compressed. The only selections for this cartridge are 2.6 GB, 6.0

GB, 10.0 GB with compression off, or 20.0 GB with compression

on.

Using DLTtape IIIxt the density defaults to 15.0 GB non-

compressed or 30.0 GB compressed.

Using the DLTtape IV tape density can be selected by using any

of the following:

1. On all read operations and all write append operations, the

recorded density is the density to be used.

2. On a Write from BOT, the tape density may be changed by:

• The Density Select button-using the Density Select button

always overrides a host selection.

• A programmable Host Selection via the operating system.

(The Density Override indicator is off, indicating automatic

or host density selection.)

• Non-compressed Default density 35.0 GB and 70.0 GB

Compression (assuming the Density Select button or the

host selection was not used.)

4.2.2 How to Select Density

To select density with the 5157 tape drive:

1. Load the tape in the drive. The yellow Tape in Use indicator

blinks while the tape loads and calibrates.

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Hp NonStop G-Series Manuel d'utilisateur Page 55