IBM B50 manual Display/Alter Sector, Vpd

new drive, the service aid aborts if the number of bad blocks being reassigne reaches a threshold.

The

procedure

for using this service aid requires

that

both the

old

and

new

d

installed in

or

attached

to

the

system

with

unique

SCSI

addresses.

This

requires

that

the

new disk

drive

SCSI

address

must be

set

to

an

address

that

is

not

c

in use and the drive be installed in an empty location. If

there

are

no

empty

locations,

then

one of the other drives must be removed. Once the copy is

complete, only one drive may remain installed. Either

remove the target drive to

return

to

the

original

configuration, or

perform

the

following

procedure

to

complete

the

replacement

of the old drive with the new drive.

1. Remove

both

drives.

2.

Set

the

SCSI address

of

the

new

drive

to

the

SCSI

address of the old dri

3.

Install

the

new

drive

in

the

old

drive's

location.

4.

Install

any

other

drives

that

were

removed

into

their

original

location.

To prevent problems that may occur when running this service aid from disk, it is suggested that this service aid be run from the diagnostics that are loaded f removable media when possible.

Display/Alter Sector

This

selection

allows

the

user

to

display

and alter information on a

disk sector.

must

be

used

when

using

this

service

aid

because inappropriate modification

to

some disk sectors may result

in

total

loss

of all data on the disk.

Sectors

are

addressed by

their decimal

sector number. Data is displayed both

in

hex

and i

ASCII. To

prevent

corrupted

data from being incorrectly corrected,

the

service

does

not

display

information

that

cannot

be

read correctly.

Display

Configuration

and

Resource

List

This

service

aid

displays the

item

header

only

for

all

installed

resources. Use

service aid

when

there

is

no

need

of

seeing the

VPD. (No

VPD

is

displayed.)

Display

Firmware Device

Node

Information

This

task

displays

the

firmware

device

node

information

that

appears

on

CHRP

platforms.

The

format

of

the

output

data may

not

be

the same between

different

levels

of

the

AIX operating system. It is intended to gather more information ab

individual

or

particular

devices

on

the

system.

Chapter 9. Introducing Tasks and Service9-13Aids