IBM 8479 Hardware Maintenance Manual - Page 38

Utilities, Format, Attention

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v SCSI Disk Utilities Select this choice to view the SCSI IDs that are assigned to each device or to format a SCSI device. To use the utility program, select a drive from the list. Read the on-screen instructions carefully before making a selection. Note: If you press Ctrl+A before the selected drives are ready, an Unexpected SCSI Command Failure screen might appear. Restart the server and watch the SCSISelect messages as each drive starts. After the drive that you want to view or format starts, press Ctrl+A. v Format Disk Attention: The Low-Level Format program erases all data and programs. Select this choice to perform a low-level format on a hard disk drive. Depending on the hard disk drive capacity, the Low-Level Format program could take up to two hours. Use the Low-Level Format program: - When you are installing software that requires a low-level format. - When you get recurring messages from the diagnostic tests directing you to run the Low-Level Format program on the hard disk drive - As a last resort before replacing a failing hard disk drive Note: If the server has a PCI RAID adapter installed, refer to the RAID adapter documentation for instructions for performing low-level formats on hard disk drives attached to the adapter. To start the Low-Level Format program: 1. If the hard disk drive is working, make a backup copy of all the files and programs on the hard disk drive. (See the operating system information for instructions.) 2. Select Format Disk; then, follow the instructions on the screen. Note: Hard disk drives normally contain more tracks than their stated capacity (to allow for defective tracks). A message appears on the screen if the defect limit is reached. If this happens, replace the hard disk drive. 30 xSeries 200 Type 8479 and xSeries 200VL Type 8481: Hardware Maintenance Manual

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v
SCSI
Disk
Utilities
Select
this
choice
to
view
the
SCSI
IDs
that
are
assigned
to
each
device
or
to
format
a
SCSI
device.
To
use
the
utility
program,
select
a
drive
from
the
list.
Read
the
on-screen
instructions
carefully
before
making
a
selection.
Note:
If
you
press
Ctrl+A
before
the
selected
drives
are
ready,
an
Unexpected
SCSI
Command
Failure
screen
might
appear.
Restart
the
server
and
watch
the
SCSISelect
messages
as
each
drive
starts.
After
the
drive
that
you
want
to
view
or
format
starts,
press
Ctrl+A.
v
Format
Disk
Attention:
The
Low-Level
Format
program
erases
all
data
and
programs.
Select
this
choice
to
perform
a
low-level
format
on
a
hard
disk
drive.
Depending
on
the
hard
disk
drive
capacity,
the
Low-Level
Format
program
could
take
up
to
two
hours.
Use
the
Low-Level
Format
program:
–
When
you
are
installing
software
that
requires
a
low-level
format.
–
When
you
get
recurring
messages
from
the
diagnostic
tests
directing
you
to
run
the
Low-Level
Format
program
on
the
hard
disk
drive
–
As
a
last
resort
before
replacing
a
failing
hard
disk
drive
Note:
If
the
server
has
a
PCI
RAID
adapter
installed,
refer
to
the
RAID
adapter
documentation
for
instructions
for
performing
low-level
formats
on
hard
disk
drives
attached
to
the
adapter.
To
start
the
Low-Level
Format
program:
1.
If
the
hard
disk
drive
is
working,
make
a
backup
copy
of
all
the
files
and
programs
on
the
hard
disk
drive.
(See
the
operating
system
information
for
instructions.)
2.
Select
Format
Disk
;
then,
follow
the
instructions
on
the
screen.
Note:
Hard
disk
drives
normally
contain
more
tracks
than
their
stated
capacity
(to
allow
for
defective
tracks).
A
message
appears
on
the
screen
if
the
defect
limit
is
reached.
If
this
happens,
replace
the
hard
disk
drive.
30
xSeries
200
Type
8479
and
xSeries
200VL
Type
8481:
Hardware
Maintenance
Manual