The
media
subsystem
provides
space
for
up
to
three
media
devices
(diskette
drive,
CD-ROM
drive,
and
optional
tape
drive
or
DVD-RAM)
in
the
front
and
two
additional
optional
devices
in
the
rear.
Hardware
Management
Console
(HMC)
The
Hardware
Management
Console
(HMC)
supports
your
system
with
features
that
allow
you
to
manage
configuration
and
operation
of
partitions
in
a
system,
as
well
as
add
and
remove
hardware
without
interrupting
system
operation.
In
this
book,
a
system
that
is
managed
by
the
HMC
is
referred
to
as
the
managed
system
.
The
HMC
uses
its
serial
connection
to
the
managed
system
to
perform
various
functions.
The
HMC’s
main
functions
include
the
following:
v
Creating
and
maintaining
a
multiple
partition
environment
v
Detecting,
reporting,
and
storing
changes
in
hardware
conditions
v
Acting
as
a
service
focal
point
for
service
representatives
to
determine
an
appropriate
service
strategy
Partitioning
the
system
is
similar
to
partitioning
a
hard
drive.
When
you
partition
a
hard
drive,
you
divide
a
single
hard
drive
so
that
the
operating
system
recognizes
it
as
a
number
of
separate
hard
drives.
The
same
holds
true
for
the
HMC’s
partitioning
capabilities,
except
the
HMC
allows
you
to
divide
the
system’s
processors,
memory,
and
I/O.
On
each
of
these
divisions,
you
can
install
an
operating
system
and
use
each
partition
as
you
would
a
separate
physical
machine.
This
division
of
system
resources
is
called
a
logical
partition
.
The
objective
of
partitioning
is
to
provide
users
with
the
capability
to
split
a
single
system
into
several
independent
systems,
each
capable
of
running
applications
in
multiple,
independent
environments
simultaneously.
For
example,
partitioning
makes
it
possible
for
a
user
to
run
a
single
application
using
different
sets
of
data
on
separate
partitions,
as
if
it
were
running
independently
on
separate
physical
systems.
Service
representatives
use
Service
Focal
Point
(SFP),
an
application
that
runs
on
the
HMC,
to
start
and
end
their
service
calls.
SFP
provides
service
representatives
with
the
serviceable
event,
vital
product
data
(VPD),
and
diagnostic
information.
The
HMC
is
a
closed
system.
Additional
applications
cannot
be
installed
on
the
HMC.
All
the
tasks
needed
to
maintain
the
platform,
the
underlying
operating
system,
and
the
HMC
application
code
are
available
by
using
the
HMC’s
management
applications.
Partition
Standby
and
Full
System
Partition
Power-On
Options
Booting
your
system
in
partition
standby
is
markedly
different
from
booting
your
system
in
a
traditional
single-machine
full
system
partition.
In
partition
standby,
the
system
sets
aside
system
memory
for
partition
management.
Partition
Standby
Memory
Issues
Unique
issues
are
associated
with
assigning
memory
to
each
partition
created
in
partition
standby.
In
partition
standby,
the
HMC
allocates
a
portion
of
each
assigned
memory
block
to
the
system.
Each
partition
requires
a
minimum
of
1
gigabyte
(GB)
of
system
memory.
When
you
start
creating
partitions,
the
system
sets
aside
256
megabytes
(MB)
of
contiguous
memory
for
its
own
use,
and
allocates
another
256
MB
of
contiguous
memory
for
each
16
GB
allocated.
Page
Table
Memory
Usage:
Partition
page
tables
are
additional
memory
required
for
a
partition
to
operate,
and
is
in
addition
to
the
total
logical
memory
size
of
a
partition.
The
partition
table
is
outside
of
a
partition’s
accessible
memory.
The
partition
page
table
must
be
constructed
with
contiguous
real
system
memory
segments.
Use
the
following
table
to
help
you
keep
track
of
the
system’s
page-table
memory
usage:
Chapter
1.
Reference
Information
3
Summary of Contents for eserver pSeries 690
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Page 228: ...Step 1527 5 Call your next level of support 212 Eserver pSeries 690 Service Guide...
Page 362: ...Step 1545 15 Call for support This ends the procedure 346 Eserver pSeries 690 Service Guide...
Page 381: ...Step 154A 14 Turn off the power Chapter 3 Maintenance Analysis Procedures 365...
Page 430: ...414 Eserver pSeries 690 Service Guide...
Page 798: ...782 Eserver pSeries 690 Service Guide...
Page 923: ...L3 Cache Shorts Test Step 4 Chapter 9 Removal and Replacement Procedures 907...
Page 924: ...L3 Cache Shorts Test Step 5 908 Eserver pSeries 690 Service Guide...
Page 926: ...L3 Cache Shorts Test Step 2 910 Eserver pSeries 690 Service Guide...
Page 928: ...L3 Cache Shorts Test Step 4 912 Eserver pSeries 690 Service Guide...
Page 929: ...L3 Cache Shorts Test Step 5 Chapter 9 Removal and Replacement Procedures 913...
Page 1055: ...7040 Model 681 Media Subsystem 1 2 3 4 5 6 7 8 9 10 Chapter 10 Parts Information 1039...
Page 1057: ...Power and SCSI Cables to the Media Subsystem 1 2 3 5 4 6 Chapter 10 Parts Information 1041...
Page 1061: ...Power Cabling Chapter 10 Parts Information 1045...
Page 1090: ...1074 Eserver pSeries 690 Service Guide...
Page 1094: ...1078 Eserver pSeries 690 Service Guide...
Page 1122: ...1106 Eserver pSeries 690 Service Guide...
Page 1124: ...1108 Eserver pSeries 690 Service Guide...
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Page 1134: ...Printed in U S A February 2004 SA38 0589 05...