Справочник Пользователя для IBM Partner Pavilion DS4100
v
The
DS4100
single-controller
storage
server
does
not
support
automatic
firmware
updates.
All
firmware
upgrades
and
downgrades
for
the
DS4100
single-controller
storage
server
must
be
performed
manually,
as
described
in
v
All
DS4100
single-controller
storage
server
controller
firmware
updates
must
be
performed
off-line.
v
You
cannot
upgrade
from
the
DS4100
single-controller
storage
server
to
the
DS4100
base
storage
server.
Please
contact
your
IBM
reseller
or
representative
for
the
possible
availability
of
such
support
in
the
future.
Fibre
channel
defined
Fibre
channel
technology
is
outlined
in
the
SCSI-3
Fibre
Channel
Protocol
(SCSI-FCP)
standard.
Fibre
channel
is
a
high-speed
data
transport
technology
that
is
used
for
mass
storage
and
networking.
Using
a
fibre-channel
arbitrated
loop
(FC-AL),
more
than
100
fibre-channel
devices
1
can
be
supported,
compared
to
15
small
computer
system
interface
(SCSI)
devices.
The
connection
from
the
DS4100
base
storage
server
to
the
DS4000
EXP100
drive
expansion
enclosure
ports
or
fibre
channel
host
bus
adapter
ports
is
a
2
Gb
fibre-channel
device
that
supports
data
transfer
rates
up
to
200
MBps
half-duplex
and
400
MBps
full-duplex
on
optical
interfaces.
SATA
defined
The
Serial
Advanced
Technology
Attachment
(SATA)
interface
offers
increased
data
rate
performance
over
Parallel
Advanced
Technology
Attachment
(ATA),
while
maintaining
the
benefits
of
ATA.
SATA
is
designed
to
overcome
the
performance
barriers
that
have
been
forecasted
for
current
parallel
technologies
while
maintaining
the
cost-efficiency
of
Parallel
ATA.
SATA
specifications
allow
for
thinner,
more
flexible
cables,
and
lower
pin
counts.
It
also
enables
easier,
more
flexible
cable
routing
management
and
the
use
of
smaller
connectors
than
is
possible
with
the
existing
Parallel
ATA
technology.
The
Serial
ATA
Working
Group
introduced
the
first
SATA
specification,
Serial
ATA
1.0,
in
2001
(http://www.serialata.org).
Product
updates
You
should
download
the
latest
version
of
the
DS4000
Storage
Manager
host
software
and
the
DS4000
storage
server
controller
firmware
and
drive
firmware
(and,
if
you
are
connecting
DS4000
EXP100
expansion
units
to
the
DS4100
base
storage
server
storage
server,
the
DS4000
EXP100
ESM
firmware,
and
the
DS4000
EXP100
disk
drive
firmware)
at
the
time
of
the
initial
installation
and
when
product
updates
become
available.
To
be
notified
of
important
product
updates,
you
must
first
register
at
the
IBM
Support
and
Download
Web
site:
1. For
the
DS4100,
each
drive
is
considered
to
be
a
device
in
a
fibre-channel
loop,
even
though
the
DS4100
drive
interface
is
SATA
(not
fibre
channel).
The
DS4000
EXP100
ESM
and
the
DS4100
controller
and
SATA
hard
drive
interposer
convert
SATA
interface
protocol
to
fibre
channel
protocol.
Chapter
1.
Introduction
3