Procedures for isolating cru problems, Isolating a power supply problem, Procedures – Dell TL2000 User Manual

Page 162: Isolating, Problems, Power, Supply, Problem, 250w, With

background image

code

reader

and

positional

emitter

pulse

count

after

the

prism

detection

retry

count

is

exhausted.

If

several

prisms

are

missing

or

damaged

or

if

the

accessor

prism

sensor/emitter

is

inoperable,

initialization

and/or

inventory

functions

can

take

a

prolonged

amount

of

time

to

complete

due

to

the

lengthy

retry

recovery

procedure.

If

the

library

is

taking

an

extended

amount

of

time

to

initialize,

to

perform

an

inventory

or

even

move

a

cartridge

within

the

library,

the

magazines

prism

integrity

should

be

verified

prior

to

exchanging

a

library

component.

This

situation

can

be

noted

by

the

ACTIVITY

line

on

the

Operator

Panel

posting

Recovery.

Prism

integrity

verification

can

be

done

by

releasing

the

magazines

and

inspecting

the

cell

prisms.

Normal

initialization

or

inventory

time

for

a

2U

library

once

the

picker

mechanism

starts

its

operation

should

be

approximately

1

to

2

minutes.

For

a

4U

library,

2

to

3

minutes.

A

single

missing

or

damaged

prism

can

add

1

to

2

minutes.

If

the

accessor

tray

sensor/emitter

is

inoperable,

or

several

prisms

are

missing

or

damaged,

initialization

or

inventory

could

exceed

30

minutes

or

longer.

Refer

to

Troubleshooting

table

“Cartridge

Movement

Problems”.

Procedures

for

Isolating

CRU

Problems

Isolating

a

Power

Supply

Problem

a77ug136

1

3

4

6

2

5

Figure

7-1.

A

250w

power

supply

with

LEDs

7-8

Dell

PowerVault

TL2000

Tape

Library

and

TL4000

Tape

Library

User's

Guide