Using
EXP810
storage
expansion
enclosures
The
section
provides
instructions
on
how
to
connect
one
group
of
four
EXP810
storage
expansion
enclosures
in
a
redundant
drive
loop.
Instructions
for
how
to
connect
a
second
group
of
four
EXP810
storage
expansion
enclosures
in
a
redundant
drive
loop
are
also
included
in
this
procedure.
In
addition,
this
procedure
is
also
applicable
when
you
have
any
number
of
enclosures,
up
to
the
maximum
number
that
can
be
attached
in
the
redundant
drive
loop
pair.
To
complete
this
procedure,
you
will
need
two
fiber-optic
cables
per
storage
expansion
enclosure.
Attention:
Handle
and
install
fiber-optic
cables
properly
to
avoid
degraded
performance
or
loss
of
communications
with
devices.
Do
not
overtighten
the
cable
straps
or
bend
the
cables
to
a
diameter
of
less
than
76
mm
(3
in.)
or
a
radius
less
than
38
mm
(1.5
in.)
Connecting
EXP810
in
a
redundant
pair
of
drive
loop
This
procedure
describes
how
to
cable
16-drive
EXP810
storage
expansion
enclosure
together
in
a
redundant
pair
of
drive
loops.
1.
Connect
the
first
two
storage
expansion
enclosures
to
drive
loop
A,
as
shown
in
Figure
50
on
page
67.
Starting
with
the
first
storage
expansion
enclosure,
connect
a
fiber-optic
cable
from
port
1B
on
the
ESM
A
board
to
port
1A
on
the
ESM
A
board
in
the
second
(next)
storage
expansion
enclosure.
d4300_41b
Loop A
Loop B
Figure
49.
Connecting
redundant
EXP100,
EXP700,
or
EXP710
drive
loops
to
the
DS4300
66
IBM
TotalStorage
DS4300
Fibre
Channel
Storage
Subsystem:
Installation,
User’s,
and
Maintenance
Guide
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Summary of Contents for TotalStorage DS4300 Turbo
Page 2: ......
Page 219: ......
Page 220: ...Part Number 42D3300 Printed in USA GC26 7722 02 1P P N 42D3300...
