storage
expansion
enclosure
models
in
the
same
redundant
drive
loop
pair.
Instead,
you
should
cable
the
FAStT
EXP500
storage
expansion
enclosures
together
using
one
pair
of
redundant
drive
loops,
and
you
should
the
DS4000
EXP700
storage
expansion
enclosures
together
using
the
other
pair
of
redundant
drive
loops.
Note:
You
might
need
to
purchase
two
additional
drive
mini
hubs
to
implement
this
cabling
scheme.
If
you
are
intermixing
FAStT
EXP500s
and
DS4000
EXP700s,
your
drive
loop
configuration
must
meet
the
following
requirements:
v
The
maximum
Fibre
Channel
transfer
speed
in
all
of
the
DS4000
EXP700s
must
be
set
to
1
Gbps
because
the
maximum
FC
transfer
speed
of
the
IBM
FAStT
EXP500
storage
expansion
enclosures
is
1
Gbps.
Otherwise,
a
drive
channel
mini
hub
data
rate
mismatch
error
will
be
generated.
v
The
maximum
Fibre
Channel
transfer
speed
in
all
the
DS4000
Storage
Server
drive-side
mini
hubs
must
be
set
to
1
Gbps.
Attention:
If
you
change
the
DS4000
EXP700
storage
expansion
enclosure
or
DS4500
Storage
Server
enclosure
link
speed
setting,
you
must
power-cycle
the
storage
server.
See
the
applicable
IBM
TotalStorage
DS4000
Storage
Server
User’s
Guide
for
the
proper
DS4000
configuration
power-down
and
power-up
sequences.
For
more
information,
see
the
IBM
TotalStorage
DS4000
Hard
Drive
and
Storage
Expansion
Enclosure
Installation
and
Migration
Guide
.
shows
the
number
of
FAStT
EXP500
and
DS4000
EXP700
storage
expansion
enclosures
that
you
can
connect
to
one
FAStT500,
DS4400,
or
DS4500
storage
server.
In
addition,
it
shows
the
maximum
number
of
hard
disk
drives
that
are
supported
in
each
configuration.
Table
14.
DS4000
EXP700
configurations
with
the
FAStT500,
DS4400,
and
DS4500
Storage
server
1
Number
of
FAStT
EXP500
storage
expansion
enclosures
Number
of
DS4000
EXP700
storage
expansion
enclosures
Maximum
number
of
hard
disk
drives
1-FAStT500
or
1-DS4400
or
1-DS4500
9
1
104
8
2
108
7
3
112
6
3
102
5
4
106
4
5
110
3
6
114
2
6
104
1
7
108
0
8
112
1
Running
DS4000
Storage
Manager
9.1
and
firmware
version
05.21.xx.xx
or
higher.
For
more
information,
see
shows
the
number
of
FAStT
EXP500
and
DS4000
EXP700
storage
expansion
enclosures
that
you
can
connect
to
one
FAStT200
HA
(dual
RAID
controllers).
In
addition,
it
shows
the
maximum
number
of
hard
disk
drives
that
are
supported
in
each
configuration.
Chapter
2.
Installing
and
cabling
the
storage
expansion
enclosure
51
Summary of Contents for TotalStorage FAStT EXP700
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