IBM JS20 Hardware Maintenance Manual - Page 65

Recovery, system, firmware, using, service, Starting, backup, image

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Note: If the system hangs or is non-responsive after starting the system, go to "Startup problems" on page 152. If the blade server hangs, you can force the blade server to start the backup image by using the code page jumper (J14). Recovery of system firmware code using service aids Linux on pSeries service aids for hardware diagnostics are available for customers who have installed and are running Linux. Users can install these free diagnostics tools for effective diagnosis and repair of the system in the rare instance when a system error occurs. This service aid toolkit provides the key tools required to take advantage of the inherent pSeries hardware RAS functions as outlined in the Linux on pSeries RAS Whitepaper available from http://techsupport.services.ibm.com/server/ Linux_on_pSeries/images/Linux_RAS.pdfsuch as first failure data capture and error log analysis. With the toolkit installed, problem determination and correction is greatly enhanced and the likelihood of an extended system outage is reduced. The Linux service aids for hardware diagnostics are separate from the operating system installation and are available for download from the following Web site: http://techsupport.services.ibm.com/server/lopdiags/. Note: The Update_Flash command can only be performed if the Linux service tools have been installed on the JS20 blade server. Starting the backup image To force the blade server to start the backup image, complete the following steps: Note: Do not perform these steps if the system error code 20D00902 has already occurred on the blade server. 1. Turn off the blade server and remove it from the BladeCenter unit (see "Removing the blade server from the BladeCenter unit" on page 73). 2. Open the blade server cover (see "Opening the blade server cover" on page 74). 3 2 1 System firmware code page jumper (J14) 3. Locate jumper J14 (system firmware code page jumper) on the system board. 4. Remove jumper J14 from pins 1 and 2, and reinstall on Pins 2 and 3 of J14 to enable system firmware recovery mode. Chapter 7. Diagnostics 55

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Note:
If
the
system
hangs
or
is
non-responsive
after
starting
the
system,
go
to
“Startup
problems”
on
page
152.
If
the
blade
server
hangs,
you
can
force
the
blade
server
to
start
the
backup
image
by
using
the
code
page
jumper
(J14).
Recovery
of
system
firmware
code
using
service
aids
Linux
on
pSeries
service
aids
for
hardware
diagnostics
are
available
for
customers
who
have
installed
and
are
running
Linux.
Users
can
install
these
free
diagnostics
tools
for
effective
diagnosis
and
repair
of
the
system
in
the
rare
instance
when
a
system
error
occurs.
This
service
aid
toolkit
provides
the
key
tools
required
to
take
advantage
of
the
inherent
pSeries
hardware
RAS
functions
as
outlined
in
the
Linux
on
pSeries
RAS
Whitepaper
available
from
Linux_on_pSeries/images/Linux_RAS.pdfsuch
as
first
failure
data
capture
and
error
log
analysis.
With
the
toolkit
installed,
problem
determination
and
correction
is
greatly
enhanced
and
the
likelihood
of
an
extended
system
outage
is
reduced.
The
Linux
service
aids
for
hardware
diagnostics
are
separate
from
the
operating
system
installation
and
are
available
for
download
from
the
following
Web
site:
Note:
The
Update_Flash
command
can
only
be
performed
if
the
Linux
service
tools
have
been
installed
on
the
JS20
blade
server.
Starting
the
backup
image
To
force
the
blade
server
to
start
the
backup
image,
complete
the
following
steps:
Note:
Do
not
perform
these
steps
if
the
system
error
code
20D00902
has
already
occurred
on
the
blade
server.
1.
Turn
off
the
blade
server
and
remove
it
from
the
BladeCenter
unit
(see
“Removing
the
blade
server
from
the
BladeCenter
unit”
on
page
73).
2.
Open
the
blade
server
cover
(see
“Opening
the
blade
server
cover”
on
page
74).
System firmware code
page jumper (J14)
3
2
1
3.
Locate
jumper
J14
(system
firmware
code
page
jumper)
on
the
system
board.
4.
Remove
jumper
J14
from
pins
1
and
2,
and
reinstall
on
Pins
2
and
3
of
J14
to
enable
system
firmware
recovery
mode.
Chapter
7.
Diagnostics
55