Defining
Devices
to
a
Subset
of
Logical
Partitions:
You
can
limit
I/O
device
access
from
LPs
to
I/O
devices
assigned
to
shared
channels
by
using
IOCP
or
HCD
to
specify
device
candidate
lists.
By
defining
devices
attached
to
a
control
unit
to
a
subset
of
LPs,
you
can
manage
which
LPs
will
attempt
to
establish
logical
paths
to
the
control
unit
through
a
shared
channel.
If
you
define
no
devices
to
a
control
unit
from
a
particular
LP,
the
shared
channel
associated
with
the
LP
will
not
attempt
to
establish
a
logical
path.
However,
if
there
is
at
least
one
device
defined
to
the
control
unit
for
the
shared
channel
associated
with
a
particular
LP,
the
shared
channel
for
the
LP
will
attempt
to
establish
a
logical
path
to
the
control
unit
for
the
LP.
In
LP
access
to
a
series
of
3174s
is
managed
through
use
of
the
device
candidate
lists
for
the
I/O
devices
attached
to
the
control
units.
The
shared
ESCON
channel
will
attempt
to
establish
only
one
logical
path
to
each
of
the
3174s
even
though
5
LPs
share
the
channel.
This
is
useful
because
the
3174
in
non-SNA
mode
only
supports
one
logical
path.
In
the
example,
the
channel
only
attempts
to
establish
a
logical
path
for
LP1
to
the
3174
defined
as
control
unit
10
because
only
LP1
has
a
device
defined
to
that
control
unit.
Similarly,
only
LP2
can
access
the
3174
defined
as
control
unit
11,
only
LP3
can
access
the
3174
defined
as
control
unit
12,
only
LP4
can
access
the
3174
defined
as
control
unit
13,
and
only
LP5
can
access
the
3174
defined
as
control
unit
14.
Partial
IOCP
Deck
for
the
Configuration:
The
following
is
a
partial
IOCP
deck
for
the
example
in
CHPID
PATH=30,SHARED
CNTLUNIT
CUNUMBR=10,PATH=30
IODEVICE
ADDRESS=VVVV,CUNUMBR=10,PART=LP1
CNTLUNIT
CUNUMBR=11,PATH=30
IODEVICE
ADDRESS=VVVV,CUNUMBR=11,PART=LP2
CNTLUNIT
CUNUMBR=12,PATH=30
IODEVICE
ADDRESS=VVVV,CUNUMBR=12,PART=LP3
CNTLUNIT
CUNUMBR=13,PATH=30
IODEVICE
ADDRESS=VVVV,CUNUMBR=13,PART=LP4
CNTLUNIT
CUNUMBR=14,PATH=30
IODEVICE
ADDRESS=VVVV,CUNUMBR=14,PART=LP5
2-16
PR/SM
Planning
Guide
Содержание Z9
Страница 1: ...System z9 Processor Resource Systems Manager Planning Guide SB10 7041 03...
Страница 2: ......
Страница 3: ...System z9 Processor Resource Systems Manager Planning Guide SB10 7041 03...
Страница 12: ...x PR SM Planning Guide...
Страница 18: ...xvi PR SM Planning Guide...
Страница 26: ...xxiv PR SM Planning Guide...
Страница 43: ...ZVSE ZVM Figure 1 1 Characteristics of Logical Partitions Chapter 1 Introduction to Logical Partitions 1 17...
Страница 54: ...1 28 PR SM Planning Guide...
Страница 126: ...2 72 PR SM Planning Guide...
Страница 195: ...Figure 3 23 Security Page Image Profile Chapter 3 Determining the Characteristics of Logical Partitions 3 69...
Страница 220: ...4 8 PR SM Planning Guide...
Страница 232: ...5 12 PR SM Planning Guide...
Страница 250: ...B 16 PR SM Planning Guide...
Страница 266: ...D 10 PR SM Planning Guide...
Страница 272: ...X 6 PR SM Planning Guide...
Страница 273: ......
Страница 274: ...Printed in USA SB10 7041 03...