IBM 8671 Hardware Maintenance Manual - Page 80

Working, Ultra320, Hot-Swap, Expansion, option

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15. If you have other options to install or remove, do so now; otherwise, go to "Installing the server bezel and left-side cover (tower model)" on page 100 or "Installing the server bezel and top cover (rack configuration)" on page 103. Working with the 3-Pack Ultra320 Hot-Swap Expansion option Your server contains hardware that enables you to replace a failed hard disk drive without turning off the server. Therefore, you have the advantage of continuing to operate your system while a hard disk drive is removed or installed. These drives are known as 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 74. The low voltage differential (LVD) SCSI hot-swap hard disk drive backplane supports a maximum of six slim-high, hot-swap hard disk drives. If you install the 3-Pack Ultra320 Hot-Swap Expansion option, you can attach up to three additional drives. All of these drives must be LVD hard disk drives that operate at 320 MB per second or lower. The optional 3-Pack Ultra320 Hot-Swap Expansion Kit contains a hot-swap hard disk drive backplane that you install adjacent to the standard hot-swap hard disk drive backplane. It also includes the SCSI cable you need to install the option. Your server supports a maximum of two hot-swap drive backplanes. Note: All drives being used in the server should have the same throughput speed rating: mixing speed ratings might cause all drives to operate at the lower throughput speed. Do the following to configure the channels on the two SCSI backplanes: v You can configure each SCSI channel (bus) independently. This is the typical backplane configuration. In this configuration: - The hard disk drives that are connected to the standard backplane are attached to channel A. - The hard disk drives that are connected to the 3-Pack Ultra320 Hot-Swap Expansion option backplane are attached to channel B. Notes: 1. The standard LVD SCSI backplane is also known as the SCSI backplane or the hot-swap hard disk drive backplane. 2. The SCSI backplane that comes with the 3-Pack Ultra320 Hot-Swap Expansion Kit is also known as the 3-Pack backplane. 3. Table 8 on page 112 lists the SCSI identifiers (IDs) for the standard LVD SCSI backplane and hard disk drives. Table 9 on page 112 lists the SCSI IDs for the 3-Pack backplane and hard disk drives. 4. 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. For example, the hard disk drive cables are labeled "HDD option." 5. For information about other options and using the 3-Pack Ultra320 Hot-Swap Expansion option, see the documentation that comes with the option kit. 6. For additional information about cabling, see "Cabling example for a ServeRAID controller" on page 66 and "Cabling the server" on page 106. 7. The SCSI cables that come with your server can only be used with the integrated SCSI controller with RAID capabilities. If a RAID controller other than the ServeRAID-5i is installed, you must use SCSI cables that are compatible 70 xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide

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15.
If
you
have
other
options
to
install
or
remove,
do
so
now;
otherwise,
go
to
“Installing
the
server
bezel
and
left-side
cover
(tower
model)”
on
page
100
or
“Installing
the
server
bezel
and
top
cover
(rack
configuration)”
on
page
103.
Working
with
the
3-Pack
Ultra320
Hot-Swap
Expansion
option
Your
server
contains
hardware
that
enables
you
to
replace
a
failed
hard
disk
drive
without
turning
off
the
server.
Therefore,
you
have
the
advantage
of
continuing
to
operate
your
system
while
a
hard
disk
drive
is
removed
or
installed.
These
drives
are
known
as
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
74.
The
low
voltage
differential
(LVD)
SCSI
hot-swap
hard
disk
drive
backplane
supports
a
maximum
of
six
slim-high,
hot-swap
hard
disk
drives.
If
you
install
the
3-Pack
Ultra320
Hot-Swap
Expansion
option,
you
can
attach
up
to
three
additional
drives.
All
of
these
drives
must
be
LVD
hard
disk
drives
that
operate
at
320
MB
per
second
or
lower.
The
optional
3-Pack
Ultra320
Hot-Swap
Expansion
Kit
contains
a
hot-swap
hard
disk
drive
backplane
that
you
install
adjacent
to
the
standard
hot-swap
hard
disk
drive
backplane.
It
also
includes
the
SCSI
cable
you
need
to
install
the
option.
Your
server
supports
a
maximum
of
two
hot-swap
drive
backplanes.
Note:
All
drives
being
used
in
the
server
should
have
the
same
throughput
speed
rating:
mixing
speed
ratings
might
cause
all
drives
to
operate
at
the
lower
throughput
speed.
Do
the
following
to
configure
the
channels
on
the
two
SCSI
backplanes:
v
You
can
configure
each
SCSI
channel
(bus)
independently.
This
is
the
typical
backplane
configuration.
In
this
configuration:
–
The
hard
disk
drives
that
are
connected
to
the
standard
backplane
are
attached
to
channel
A.
–
The
hard
disk
drives
that
are
connected
to
the
3-Pack
Ultra320
Hot-Swap
Expansion
option
backplane
are
attached
to
channel
B.
Notes:
1.
The
standard
LVD
SCSI
backplane
is
also
known
as
the
SCSI
backplane
or
the
hot-swap
hard
disk
drive
backplane.
2.
The
SCSI
backplane
that
comes
with
the
3-Pack
Ultra320
Hot-Swap
Expansion
Kit
is
also
known
as
the
3-Pack
backplane.
3.
Table
8
on
page
112
lists
the
SCSI
identifiers
(IDs)
for
the
standard
LVD
SCSI
backplane
and
hard
disk
drives.
Table
9
on
page
112
lists
the
SCSI
IDs
for
the
3-Pack
backplane
and
hard
disk
drives.
4.
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.
For
example,
the
hard
disk
drive
cables
are
labeled
“HDD
option.”
5.
For
information
about
other
options
and
using
the
3-Pack
Ultra320
Hot-Swap
Expansion
option,
see
the
documentation
that
comes
with
the
option
kit.
6.
For
additional
information
about
cabling,
see
“Cabling
example
for
a
ServeRAID
controller”
on
page
66
and
“Cabling
the
server”
on
page
106.
7.
The
SCSI
cables
that
come
with
your
server
can
only
be
used
with
the
integrated
SCSI
controller
with
RAID
capabilities.
If
a
RAID
controller
other
than
the
ServeRAID-5i
is
installed,
you
must
use
SCSI
cables
that
are
compatible
70
xSeries
235
Type
8671:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide