IBM RS/6000 7025 manual General Information for 4.0GB 4-mm Tape Drive, DDS2

General Information for 4.0GB 4-mm Tape Drive

The 4.0GB 4-mm tape drive is a streaming tape drive that is used to:

Ÿ Save and restore system data files.

Ÿ Archive important records.

ŸDistribute operating system software upgrades.

The 4-mm tape drive can be attached to any system using a single-ended interfac meeting the Small Computer System Interface ll (SCSI-ll) Standard ANSI

X3.131-199X Rev. 10h.

The 4-mm tape drive has the following features:

Ÿ Capacity of 4.0 GB

per

cartridge.

8

GB

is

typical

with data

compression

and

DDS2

data

cartridges.

The

actual capacity

per

cartridge

varies

depending

on

the

application and

the

type

of

data

cartridge

being

used.

Ÿ

Data

transfer

rate

is 400 KBps.

800

KBps is

typical

with

data

compression.

Note: Data compression activated is the default setting from the factory. Dat

compression

is

usually

controlled by the application software.

Ÿ

Read and

write of

DDS tape cartridges in 2.0 GB per cartridge format.

Ÿ

A status

light

that

indicates when

it

is

time to clean

the

tape path.

ŸInternal diagnostics that are activated when the 4 mm Diagnostic Cartridge is

inserted and loaded into the drive.

ŸMedia recognition system: only data grade media can be written with this tape drive.

The 4-mm tape	drive uses a 4-mm	data cartridge for	saving	and restoring	your
system data.	The 4-mm tape drive	writes and reads	only 4-mm	Digital Data	Storage
(DDS or	DDS2) cartridges.

Chapter 2. Using the System2-31Unit