Updating hard disk drive and adapter microcode, Updating, Hard – IBM Ultra320 User Manual
Page 32: Disk, Drive, Adapter, Microcode, Configuring, Pci-x, Dual
Updating
Hard
Disk
Drive
and
Adapter
Microcode
Disk
drives
attached
to
this
RAID
adapter
must
contain
the
latest
microcode
level.
Microcode
updates
for
hard
disk
drives
attached
to
the
PCI-X
Dual
Channel
Ultra320
SCSI
RAID
Adapter
are
handled
automatically
by
the
iprupdate
utility,
which
executes
each
time
the
system
is
booted,
or
manually
by
the
iprconfig
utility.
The
iprupdate
utility
will
only
automatically
update
microcode
to
adapters
and
devices
if
it
is
determined
that
they
are
not
at
the
minimum
supported
level
of
microcode.
The
latest
microcode
level
for
your
drive
model
and
PCI-X
Dual
Channel
Ultra320
SCSI
RAID
Adapter
may
be
shipped
as
part
of
the
Linux
distribution.
If
an
update
or
replacement
is
needed,
the
latest
microcode
can
be
obtained
from
the
pSeries
microcode
Web
site:
http://techsupport.services.ibm.com/server/mdownload/download.html.
If
you
downloaded
new
microcode
from
the
Web
site,
follow
the
instructions
in
the
Readme
on
the
Web
site
to
install
it.
If
there
are
no
instructions
available,
install
it
as
follows:
1.
If
necessary,
log
in
as
root
user.
2.
Install
the
rpm
package
by
typing:
rpm
-ivh
–-ignoreos
scsi.0051.rpm
Press
Enter.
3.
Update
the
microcode
based
on
your
kernel
type:
If
you
are
using
a
2.4
based
kernel,
type:
iprupdate
Press
Enter.
Once
the
microcode
update
has
completed,
you
are
finished.
If
you
are
using
a
2.6
based
kernel,
type:
iprconfig
Press
Enter
and
go
to
the
next
step.
4.
If
you
are
using
a
2.6
based
kernel,
choose
the
Download
microcode
menu
option
and:
v
Select
the
adapters
and
devices
you
wish
to
update
v
For
each
selected
device,
select
the
microcode
image
you
wish
to
download
Configuring
the
PCI-X
Dual
Channel
Ultra320
SCSI
Adapter
The
PCI-X
Dual
Channel
Ultra320
SCSI
Adapter
permits
up
to
320
MB/s
operation
with
LVD
devices
on
a
wide
bus.
With
single-end
(SE)
devices,
it
can
run
up
to
40
MB/s.
The
maximum
speed
and
bus
width
are
automatically
negotiated
based
on
the
characteristics
of
the
attached
device.
You
can
use
iprconfig
to
control
speed
and
bus
width
for
devices
as
described
in
the
following
sections.
Limit
Adapter
Speed
Using
the
Maximum
SCSI
Bus
Speed
in
MB/s
The
default
maximum
adapter
speed
is
320
MB/s
for
LVD
mode
and
40
MB/s
for
SE
mode.
If
you
are
not
successful
running
at
these
speeds,
you
can
reduce
the
adapter
speed
by
changing
the
Maximum
Bus
Throughput.
Note:
The
device
driver
will
default
to
80
MB/s
on
the
2.4
kernel
until
the
iprupdate
utility
runs
and
160
MB/s
on
the
2.6
kernel
until
the
iprinit
utility
is
run.
After
the
utilities
complete,
higher
speeds
will
be
attempted.
These
utilities
are
configured
to
run
automatically
each
time
the
system
is
booted.
To
limit
adapter
speed,
do
the
following:
1.
At
the
command
prompt,
type
iprconfig
,
and
press
Enter.
20
PCI-X
Dual
Channel
Ultra320
SCSI
RAID
Adapter:
Installation
and
Using
Guide