Cabling, Ds4100, Redundant – IBM Partner Pavilion DS4100 User Manual
Page 142: Loop
In
the
existing
DS4100
configuration
already
includes
two
DS4000
EXP100s.
The
dashed
lines
show
you
how
to
add
a
third
DS4000
EXP100
to
the
configuration.
To
add
the
new
DS4000
EXP100
shown
in
you
would
perform
the
following
steps:
1.
Verify
that
the
existing
configuration
is
powered
on
and
is
in
optimal
state.
Use
the
DS4000
Storage
Manager
client
to
correct
any
problems
before
proceeding.
2.
Unpack
the
new
DS4000
EXP100
and
mount
it
in
the
proper
position
on
the
rack
cabinet.
3.
Make
the
fibre-channel
connection
marked
1
in
(drive
loop
B).
Then
power
on
the
new
DS4000
EXP100
and
verify
that
it
is
recognized
by
the
DS4000
Storage
Manager
software
GUI.
4.
Make
the
fibre-channel
connection
marked
2
in
5.
Make
the
fibre-channel
connection
marked
3
in
(drive
loop
A).
6.
Use
the
DS4000
Storage
Manager
client
to
verify
the
ESM
firmware
version
of
the
new
EXP100.
v
If
the
ESM
firmware
version
of
the
new
DS4000
EXP100
is
version
953x
or
lower,
disconnect
the
new
DS4000
EXP100
and
contact
IBM
support,
your
IBM
reseller,
or
your
IBM
representative
for
assistance.
v
If
the
ESM
firmware
version
of
the
new
EXP100
is
version
9554
or
higher,
but
does
not
match
exactly
the
ESM
firmware
version
of
the
DS4000
EXP100s
that
were
already
installed
in
the
DS4100
configuration,
then
refer
to
the
procedures
for
resolving
ESM
firmware
mismatches
in
the
IBM
TotalStorage
DS4000
EXP100
Expansion
Unit
Installation,
User’s,
and
Maintenance
Guide.
Drive enclosures
group 1
Drive loop A
Drive loop B
Drive loop C
Storage server
Drive Expansion
Port A
New DS4000 EXP100
First DS4000 EXP100
Drive loop A
Fibre Channel
interface cables
Drive loop B
F
interface cables
ibre Channel
Input
Input
Output
Output
2
1
3
f10ug047
Second DS4000 EXP100
Drive Expansion
Port B
Figure
78.
Cabling
the
DS4100
to
a
redundant
loop
110
IBM
TotalStorage
DS4100
Storage
Server:
Installation,
User’s,
and
Maintenance
Guide