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Dell TL2000 User Manual

Page 237

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Table

C-2.

LTO

Tape

Drive

Sense

Data

(continued)

Byte

Bit

Address

or

Name

7

6

5

4

3

2

1

0

65

Last

Error

FSC

66

67

Last

Error

Flag

Data

68

69

LPOS

Region

70-85

ERP

Summary

Information

86-89

Product

Revision

Level:

YMDV

(as

defined

in

Standard

Inquiry;

this

is

also

known

as

the

Code

Level)

90-95

Reserved

(0)

The

descriptions

below

serve

only

as

an

overview

of

sense

reporting

in

the

tape

drive.

This

tape

drive

conforms

to

all

sense

field

reporting

as

specified

in

the

SCSI

standards.

Note:

1.

The

Error

Code

field

(Byte

0)

is

set

to

70h

to

indicate

a

current

error,

that

is

one

associated

with

the

most

recently

received

command.

It

is

set

to

71h

to

indicate

a

deferred

error

which

is

not

associated

with

the

current

command.

2.

The

segment

number

(Byte

1)

is

zero

since

the

Copy,

Compare,

and

Copy

and

Verify

commands

are

not

supported.

3.

The

File

Mark

flag

(Byte

2,

bit

7)

is

set

if

a

Space,

Read,

or

Verify

command

did

not

complete

because

a

file

mark

was

read.

4.

The

End

of

Media

(EOM)

flag

(Byte

2,

bit

6)

is

set

if

a

Write

or

Write

File

Marks

command

completed

in

the

early

warning

area.

Spacing

into

BOM

also

causes

this

flag

to

be

set.

It

is

also

set

on

an

attempt

to

read

or

space

past

EOD,

or

if

an

attempt

is

made

to

space

into

Beginning

of

Media.

5.

The

Illegal

Length

Indicator

(ILI)

flag

(Byte

2,

bit

5)

is

set

if

a

Read

or

Verify

ended

because

a

block

was

read

from

tape

that

did

not

have

the

block

length

requested

in

the

command.

6.

The

Information

Bytes

(Bytes

3-5)

are

only

valid

if

the

Valid

flag

is

set.

This

occurs

only

for

current

errors

and

not

for

deferred

errors.

7.

The

Field

Replaceable

Unit

field

(Byte

14)

is

set

to

either

zero

or

to

a

non-zero,

vendor-specific

code

indicating

which

part

of

the

drive

is

suspected

of

causing

the

failure.

8.

The

Clean

(CLN)

flag

(Byte

21,

bit

3)

is

set

if

the

drive

needs

cleaning

and

clear

otherwise.

9.

The

Volume

Label

Fields

Valid

(VolValid)

bit

(Byte

21,

bit

0)

is

set

if

the

Volume

Label

being

reported

is

valid.

10.

The

Volume

Label

field

(Bytes

22-28)

reports

the

volume

label

if

a

cartridge

is

loaded

in

the

drive

and

Volume

Label

Fields

Valid

is

set.

11.

The

Current

Wrap

field

(Byte

29)

reports

the

physical

wrap

of

the

tape.

The

least

significant

bit

reflects

the

current

physical

direction.

A

0

Appendix

C.

Sense

Data

C-13