Exabyte EXB-8205 Betriebsanleitung PDF herunterladen (Seite 348)

EEPROM

option

Definition Possible values Default

value

Option is

set to...

Ignore

illegal

density

changes

Controls the reporting of

errors if you attempt to

change the Density Code

whenthetapeisnot

positioned at LBOT. This

option controls whether an

error is reported if the

Density Code selected

does not agree with the

current tape format. (See

page 10-17 for information

about the Density Code.)

NO – Report an error if an illegal

density change is attempted and the

tape is not at LBOT.

YES – Do not report an error if an

illegal density change is attempted and

the tape is not at LBOT. However, the

write density will not be changed.

NO

Default

density

reporting

code

Controls the reporting of

00h for the Density Code

in MODE SENSE—see

page 10-17.

NORMAL – The CTS should never

report 00h for the Density Code;

instead, it should report the actual tape

format. Setting the Density Code in

MODE SELECT to 00h will select the

default tape format for the CTS.

00h – The CTS should report 00h for

the Density Code instead of the actual

default tape format. Note that this

option does not affect how the Density

Code in MODE SELECT functions.

NORMAL

True areal

density

selection

Controls whether Density

Codes 8Ch and 90h can

be used for the tape format

in MODE SELECT and

MODE SENSE.

See page A-25 for more

information.

EXB-8500 – Density codes 8Ch and

90h are legal for both MODE SELECT

and MODE SENSE.

SCSI-2 – 8500c format is selected by

setting the Density Code to 15h and the

DCE bit to 1. 8200c format is selected

by setting the Density code to 14h and

the DCE bit to 1. MODE SENSE

echoes these settings for each format.

EXB-8500

Legal

non-LBOT

density

Controls which Density

Code is legal when a

MODE SELECT command

is issued and the tape is

not at LBOT.

When the tape is at LBOT,

the Density Code in MODE

SELECT selects the

default write format for the

CTS.Whenthetapeisnot

at LBOT, the tape format

cannot be changed, and

the Density Code must

match either the tape’s

actual format or the default

write density, depending

on this option.

See page A-28 for more

information.

WRITE – When the tape is not at

LBOT, the MODE SELECT Density

Code must match the default write

density, which may or may not reflect

the tape’s actual format.

READ –WhenthetapeisnotatLBOT,

the MODE SELECT Density Code

must match the actual format of the

tape, which may or may not reflect the

default write density. Echoing the

Density Code returned by MODE

SENSE in a subsequent MODE

SELECT command will always work.

WRITE

A-12

EXB-8205 and EXB-8505

(Standard and XL)

510503

Appendix A EEPROM Options

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