Initialize element status with range (37h), Initialize, Element – Dell PowerVault TL2000 User Manual

Page 17: Status, With, Range, 37h)

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INITIALIZE

ELEMENT

STATUS

WITH

RANGE

(37h)

The

INITIALIZE

ELEMENT

STATUS

WITH

RANGE

command

shall

cause

the

media

changer

to

check

the

specified

elements

for

volume

status

and

any

other

relevant

status.

This

command

enables

the

initiator

to

get

a

quick

response

from

a

Read

Element

Status

command

that

may

follow,

and

is

useful

after

a

power

failure,

if

tape

medium

has

been

changed

by

an

operator,

or

if

subsystem

configuration

has

changed.

Bit

7

6

5

4

3

2

1

0

Byte

0

Operation

Code

(37h)

1

LUN

Reserved

Fast

Range

2

(MSB)

Starting

Element

Address

3

(LSB)

4

Reserved

5

Reserved

6

(MSB)

Number

of

Elements

7

(LSB)

8

Reserved

9

Control

Field

descriptions:

Range:

A

Range

bit

of

zero

indicates

that

all

element

addresses

shall

be

checked

and

that

the

Starting

Element

Address

and

Number

of

Elements

fields

are

ignored.

A

Range

bit

of

one

indicates

that

the

series

of

elements

beginning

at

the

specified

Starting

Element

Address

for

the

specified

Number

of

Elements

shall

be

checked.

If

the

Number

of

Elements

field

is

zero,

the

range

checked

shall

start

with

the

Starting

Element

Address

and

continue

through

the

last

element

address

on

the

unit.

Fast:

A

Fast

bit

of

one

indicates

that

the

specified

elements

shall

be

scanned

for

media

presence

only.

A

Fast

bit

of

zero

indicates

that

the

specified

elements

shall

be

scanned

for

all

relevant

status.

Element

Address:

When

the

Range

bit

is

set

this

field

specifies

the

starting

element

address

of

the

scan

for

the

Initialize

Elements

with

Range

command.

When

the

Range

bit

is

not

set

the

information

in

this

field

is

ignored.

Number

of

Elements:

When

the

Range

bit

is

set

this

field

specifies

the

number

of

elements

to

scan

during

the

Initialize

Elements

with

Range

command.

The

number

of

cartridges

to

scan

should

not

exceed

the

maximum

number

of

available

storage

slots

taking

in

account

the

starting

Element

Address

field.

When

the

Range

bit

is

not

set

the

information

in

this

field

is

ignored.

Chapter

3.

Supported

SCSI

Commands

3-3

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