Table
9.
Storage
expansion
enclosure
configurations
for
DS4300
dual-controller
Turbo
models
only
(continued)
EXP100
EXP700
EXP710
EXP810
Notes:
1.
Only
when
the
EXP700
is
upgraded
to
an
EXP710
with
the
DS4000
EXP700
Models
1RU/1RX
Switched-ESM
Option
Upgrade
Kit
.
2.
If
there
are
no
drives
in
the
DS4300
subsystem
internal
drive
slots
and
the
only
enclosures
connected
are
EXP100s,
up
to
eight
EXP100
storage
expansion
enclosures
can
be
connected
to
the
DS4300
when
using
the
special
DS4300
NVSRAM
file
to
disable
the
DS4300
internal
drive
slots.
This
is
the
only
configuration
where
eight
14
drive
storage
expansion
enclosures
can
be
attached
to
the
DS4300.
3.
If
there
are
no
drives
in
the
DS4300
subsystem
internal
drive
slots
and
the
only
enclosures
connected
are
EXP810s,
up
to
seven
EXP810
storage
expansion
enclosures
can
be
connected
to
the
DS4300
when
using
the
special
DS4300
NVSRAM
file
to
disable
the
DS4300
internal
drive
slots.
This
is
the
configuration
where
seven
16
drive
storage
expansion
enclosures
can
be
attached
to
the
DS4300.
DS4000
storage
expansion
enclosure
models
can
be
mixed
in
the
same
pair
of
redundant
drive
loops.
Table
10
shows
whether
an
existing
storage
expansion
enclosure
within
a
DS4300
redundant
drive
loop
can
support
the
addition
of
new
storage
expansion
enclosures
of
another
model
type.
Table
11
on
page
50
lists
possible
14-drive
(EXP710/EXP100)
and
16-drive
(EXP810)
storage
expansion
enclosure
intermix
combinations,
as
well
as
total
number
of
drives
for
each
combination
for
a
DS4300
dual
controller
Turbo
model.
Note:
Since
the
maximum
number
of
drives
that
can
be
supported
in
the
DS4300
dual
controller
Turbo
models
redundant
drive
loop
pair
is
112,
IBM
does
not
support
the
use
of
partially
filled
drive
enclosures
when
intermixing
storage
expansion
enclosures
of
different
drive
slot
capacities
to
prevent
the
possibility
of
going
over
the
maximum
of
112
drives
in
a
drive
loop.
Intermixing
drive
expansion
enclosures
with
different
a
number
of
drive
slots
will
reduce
the
maximum
number
of
drives
that
can
be
configured
in
a
redundant
drive
loop
pair,
as
shown
in
Table
11
on
page
50.
Table
10.
Support
for
new
storage
expansion
enclosures
within
a
DS4300
drive
loop
Existing
EXP
drive
expansion
enclosure
in
drive
loop
New
EXP
drive
expansion
enclosure
1
EXP100
EXP700
EXP710
EXP810
(FC
or
SATA)
EXP100
Yes
3
Yes
3,
6
Yes
3,
4,
6
Yes
5,
6
EXP700
Yes
3,
6
Yes
2
Yes
4
No
7
EXP710
Yes
3,
4,
6
Yes
4
Yes
4
Yes
5,
6,
8
EXP810
(FC
or
SATA)
Yes
5,
6
No
7
Yes
5,
6,
8
Yes
5,
6,
8
Chapter
3.
Cabling
the
storage
subsystem
49
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Summary of Contents for TotalStorage DS4300 Turbo
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