IBM 17011RS Maintenance Manual - Page 23

iSCSI, controller, Notes, Power, supply

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Power supplies iSCSI RAID controllers with three Gb Ethernet connectors Figure 5. DS300 storage subsystem model 2RD rear view iSCSI RAID controller The DS300 storage subsystem models come with one iSCSI RAID controller. There is a filler panel in the right RAID controller bay (side B), which must remain in place to maintain proper cooling. The DS300 storage subsystem model 1RL contains one iSCSI RAID controller with one 1 Gb/sec (gigabit per second) Ethernet input connector for data and management and eight LEDs. Notes: 1. Make sure that you always install a power supply above a controller. 2. The RAID controller in model 1RL does not contain a cache battery. The DS300 storage subsystem model 1RS contains one iSCSI RAID controller with one 1 Gb/sec Ethernet input connector for management, two 1 Gb/sec Ethernet input connectors for data, and 12 LEDs. The DS300 storage subsystem model 2RD contains two iSCSI RAID controller with one 1 Gb/sec Ethernet input connector for management, two 1 Gb/sec Ethernet input connectors for data, and 12 LEDs. Each RAID controller also contains a cache battery to maintain cache data in the event of a power failure. For more information, see "Cache memory and RAID controller battery" on page 12. Power supply The DS300 storage subsystem comes with either one or two hot-swap power supplies. Each unit is a self-contained power supply with three integral cooling fans, a power switch, and two status LEDs. If the storage subsystem comes with only one power supply, there is a filler panel in the right power supply bay (side B). The filler panel must remain in place to maintain proper cooling. Note: If storage subsystem model 1RL has only one power supply installed, both the RAID controller and the power supply must be installed in side A. Chapter 2. IBM TotalStorage DS300 storage subsystem type 1701 (models 1RL, 1RS, 2RD) 9

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iSCSI
RAID
controller
The
DS300
storage
subsystem
models
come
with
one
iSCSI
RAID
controller.
There
is
a
filler
panel
in
the
right
RAID
controller
bay
(side
B),
which
must
remain
in
place
to
maintain
proper
cooling.
The
DS300
storage
subsystem
model
1RL
contains
one
iSCSI
RAID
controller
with
one
1
Gb/sec
(gigabit
per
second)
Ethernet
input
connector
for
data
and
management
and
eight
LEDs.
Notes:
1.
Make
sure
that
you
always
install
a
power
supply
above
a
controller.
2.
The
RAID
controller
in
model
1RL
does
not
contain
a
cache
battery.
The
DS300
storage
subsystem
model
1RS
contains
one
iSCSI
RAID
controller
with
one
1
Gb/sec
Ethernet
input
connector
for
management,
two
1
Gb/sec
Ethernet
input
connectors
for
data,
and
12
LEDs.
The
DS300
storage
subsystem
model
2RD
contains
two
iSCSI
RAID
controller
with
one
1
Gb/sec
Ethernet
input
connector
for
management,
two
1
Gb/sec
Ethernet
input
connectors
for
data,
and
12
LEDs.
Each
RAID
controller
also
contains
a
cache
battery
to
maintain
cache
data
in
the
event
of
a
power
failure.
For
more
information,
see
“Cache
memory
and
RAID
controller
battery”
on
page
12.
Power
supply
The
DS300
storage
subsystem
comes
with
either
one
or
two
hot-swap
power
supplies.
Each
unit
is
a
self-contained
power
supply
with
three
integral
cooling
fans,
a
power
switch,
and
two
status
LEDs.
If
the
storage
subsystem
comes
with
only
one
power
supply,
there
is
a
filler
panel
in
the
right
power
supply
bay
(side
B).
The
filler
panel
must
remain
in
place
to
maintain
proper
cooling.
Note:
If
storage
subsystem
model
1RL
has
only
one
power
supply
installed,
both
the
RAID
controller
and
the
power
supply
must
be
installed
in
side
A.
Power supplies
iSCSI RAID controllers with
three Gb Ethernet connectors
Figure
5.
DS300
storage
subsystem
model
2RD
rear
view
Chapter
2.
IBM
TotalStorage
DS300
storage
subsystem
type
1701
(models
1RL,
1RS,
2RD)
9