IBM 8649 Hardware Maintenance Manual - Page 56

Working, hot-swap, drives

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Notes: 1. To minimize the possibility of damage to the hard disk drives when you are installing a hard disk drive in a rack model, install the server in the rack before installing the hard disk drives. 2. You do not have to turn off the server to install hot-swap drives in the hot-swap drive bays. However, you must turn off the server when performing any steps that involve installing or removing cables. Working with hot-swap drives The hot-swap drives are attached to a hot-swap hard disk drive backplane. The backplane is a printed circuit board behind the drive bays. For more information about drive bays and drive installation, see "Installing internal drives" on page 44. The low voltage differential (LVD) SCSI hot-swap hard disk drive backplane supports a maximum of six slim-high, hot-swap hard disk drives. Each hot-swap drive that you plan to install must be mounted in a hot-swap-drive tray. The drive must have a Single Connector Attachment (SCA) connector. Hot-swap-drive trays come with hot-swap drives. Each hot-swap drive has two indicator LEDs (see the User's Guide on the IBM xSeries Documentation CD). If the amber hard disk drive status LED for a drive is lit continuously, that drive is faulty and requires replacement. When the hard disk drive status LED indicates a drive fault, you can replace the drive without turning off the server. For increased security, the hot-swap drives and filler panels are locked in the server by the hot-swap lock bar. The hot-swap lock bar cannot be released, allowing installation and removal of the hot-swap drives and filler panels, unless the key lock on the server side cover is unlocked. Note: All drives being used in the server should have the same speed rating: mixing speed ratings will cause all drives to operate at the lower speed. The hard disk drives that are connected to the standard backplane are attached to channel A. Notes: 1. Table 5 on page 48 lists the SCSI identifiers (IDs) for the standard LVD SCSI backplane and hard disk drives. 2. Cable identifiers are printed on the cables that come with your server and options. Use these identifiers to connect the cables to the correct connectors. 3. For additional information about cabling, see "Cabling an optional SCSI adapter" on page 43 and "System-board option connectors" on page 91 46 IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

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Notes:
1.
To
minimize
the
possibility
of
damage
to
the
hard
disk
drives
when
you
are
installing
a
hard
disk
drive
in
a
rack
model,
install
the
server
in
the
rack
before
installing
the
hard
disk
drives.
2.
You
do
not
have
to
turn
off
the
server
to
install
hot-swap
drives
in
the
hot-swap
drive
bays.
However,
you
must
turn
off
the
server
when
performing
any
steps
that
involve
installing
or
removing
cables.
Working
with
hot-swap
drives
The
hot-swap
drives
are
attached
to
a
hot-swap
hard
disk
drive
backplane
.
The
backplane
is
a
printed
circuit
board
behind
the
drive
bays.
For
more
information
about
drive
bays
and
drive
installation,
see
“Installing
internal
drives”
on
page
44.
The
low
voltage
differential
(LVD)
SCSI
hot-swap
hard
disk
drive
backplane
supports
a
maximum
of
six
slim-high,
hot-swap
hard
disk
drives.
Each
hot-swap
drive
that
you
plan
to
install
must
be
mounted
in
a
hot-swap-drive
tray.
The
drive
must
have
a
Single
Connector
Attachment
(SCA)
connector.
Hot-swap-drive
trays
come
with
hot-swap
drives.
Each
hot-swap
drive
has
two
indicator
LEDs
(see
the
User’s
Guide
on
the
IBM
xSeries
Documentation
CD).
If
the
amber
hard
disk
drive
status
LED
for
a
drive
is
lit
continuously,
that
drive
is
faulty
and
requires
replacement.
When
the
hard
disk
drive
status
LED
indicates
a
drive
fault,
you
can
replace
the
drive
without
turning
off
the
server.
For
increased
security,
the
hot-swap
drives
and
filler
panels
are
locked
in
the
server
by
the
hot-swap
lock
bar.
The
hot-swap
lock
bar
cannot
be
released,
allowing
installation
and
removal
of
the
hot-swap
drives
and
filler
panels,
unless
the
key
lock
on
the
server
side
cover
is
unlocked.
Note:
All
drives
being
used
in
the
server
should
have
the
same
speed
rating:
mixing
speed
ratings
will
cause
all
drives
to
operate
at
the
lower
speed.
The
hard
disk
drives
that
are
connected
to
the
standard
backplane
are
attached
to
channel
A.
Notes:
1.
Table
5
on
page
48
lists
the
SCSI
identifiers
(IDs)
for
the
standard
LVD
SCSI
backplane
and
hard
disk
drives.
2.
Cable
identifiers
are
printed
on
the
cables
that
come
with
your
server
and
options.
Use
these
identifiers
to
connect
the
cables
to
the
correct
connectors.
3.
For
additional
information
about
cabling,
see
“Cabling
an
optional
SCSI
adapter”
on
page
43
and
“System-board
option
connectors”
on
page
91
46
IBM
xSeries
225
Types
8649:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide