Справочник Пользователя для IBM Partner Pavilion DS4100
connections
for
expanding
the
DS4100
storage
capacity
to
SATA
hard
drives
in
external
DS4000
EXP100
storage
expansion
units.
Currently,
the
only
DS4000
storage
expansion
unit
model
that
can
be
attached
to
the
DS4100
base
storage
server
is
the
DS4000
EXP100.
Do
not
connect
other
DS4000
storage
expansion
units
(such
as
the
DS4000
EXP700
or
DS4000
EXP710)
to
the
DS4100
base
storage
server.
Please
contact
your
IBM
support
representative
for
information
about
the
availability
of
future
support
for
connecting
other
DS4000
storage
expansion
unit
models.
Note:
You
must
make
fibre
channel
connections
from
the
host
server
fibre
channel
HBA
ports
to
both
controllers
in
the
DS4100
base
storage
server
to
ensure
full
host-side
redundancy.
Attention
To
ensure
proper
operation
when
connecting
DS4000
EXP100
expansion
units
to
the
DS4100
base
storage
server,
you
must
verify
that
the
DS4000
EXP100
ESM
firmware
level
is
at
level
9554
or
later.
If
the
ESM
firmware
level
is
lower
than
9554,
disconnect
the
DS4000
EXP100
and
contact
IBM
support,
your
IBM
reseller,
or
your
IBM
representative
for
assistance.
About
the
DS4100
single-controller
storage
server
The
DS4100
single-controller
storage
server
(Machine
Type
1724,
Model
1Sx,
where
x
represents
an
upper-case
alphanumeric
character)
is
a
rack-mountable
storage
server
that
comes
with
one
RAID
controller,
one
power
supply,
and
two
cooling
units.
It
supports
up
to
fourteen
hot-swap
internal
disk
drive
slots,
which
support
over
3.5
TB
of
storage
capacity
when
using
250
GB
SATA
disk
drives.
External
cables
and
small
form-factor
pluggable
(SFP)
modules
connect
the
storage
server
to
the
host
server
fibre
channel
HBA
ports.
Notes:
1.
The
DS4100
single-controller
storage
server
does
not
support
storage
capacity
expansion
using
external
DS4000
EXP100
expansion
units
(or
any
other
models
of
DS4000
storage
expansion
units).
In
addition,
it
does
not
offer
RAID
controller
and
drive
loop
redundancy.
2.
The
cache
in
the
controller
of
the
DS4100
single-controller
storage
server
is
used
for
read
operations
only.
No
write
operations
will
be
cached.
The
following
limitations
apply
to
this
release
of
the
DS4100
single-controller
storage
server.
v
All
factory-delivered
DS4100
RAID
controllers
are
shipped
with
a
recent
version
of
controller
firmware
loaded
on
the
RAID
controller,
but
that
firmware
version
might
not
match
precisely
the
firmware
version
the
RAID
controller
you
need
to
replace.
When
you
replace
the
RAID
controller
in
the
DS4100
single-controller
storage
server,
if
the
firmware
version
of
the
replacement
RAID
controller
is
determined
to
be
incompatible
with
the
configuration
database
during
the
boot
process,
the
DS4100
single-controller
storage
server
will
enter
a
Stop
State
and
will
not
allow
any
DS4000
Storage
Manager
operations
to
be
performed.
In
this
case,
you
must
manually
upgrade
or
downgrade
the
replacement
RAID
controller
firmware
to
match
the
version
required
by
the
configuration
database.
See
2
IBM
TotalStorage
DS4100
Storage
Server:
Installation,
User’s,
and
Maintenance
Guide