Connecting
storage
expansion
enclosures
in
a
loop
with
FAStT
EXP500s
(DS4000
EXP700
only)
You
can
connect
both
FAStT
EXP500
and
DS4000
EXP700
storage
expansion
enclosures
to
FAStT200,
FAStT500,
DS4400,
and
DS4500
storage
servers.
The
DS4300
does
not
support
the
FAStT
EXP500.
Use
and
to
determine
the
number
of
storage
expansion
enclosures
that
you
can
connect
to
a
DS4000
storage
server
redundant
loop
(drive
loop
pair).
Attention:
You
cannot
mix
the
DS4000
EXP710
with
FAStT
EXP500s
in
a
drive
loop
with
any
storage
server.
In
addition,
with
a
DS4000
storage
server
that
supports
redundant
drive
loops
(such
as
the
DS4400
and
DS4500),
if
a
DS4000
EXP710
is
included
in
one
drive
loop,
no
FAStT
EXP500s
can
be
present
in
the
other
drive
loop
(because
the
storage
server
does
not
support
mixed
drive
loop
speeds).
If
you
are
intermixing
FAStT
EXP500s
and
DS4000
EXP700s,
it
is
strongly
recommended
that
you
do
not
cable
the
FAStT
EXP500
and
DS4000
EXP700
EXP700
EXP700
EXP710
EXP710
0 0
e
xp71unacc1b
Figure
39.
Unacceptable
intermixed
DS4000
EXP700
and
DS4000
EXP710
loop
configuration
50
IBM
TotalStorage
DS4000
EXP700
and
EXP710
Storage
Expansion
Enclosures:
Installation,
User’s,
and
Maintenance
Guide
Summary of Contents for TotalStorage FAStT EXP700
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