location
of
an
8-byte
area
into
which
you
have
placed
the
name
of
the
high
level
index
of
the
control
volume
to
be
disconnected.
HOW
TO
CATALOG
A
DATA
SEr
You
catalog
a
data
set
by
using
the
CATALOG
and
CAMLST
macro-
instructions.
All
inde*
leve~s
required
to
catalog
the
data
set
must
exist
in
the
catalog,
or
an
exceptional
return
code
is
set.
You
must
build
a
complete
volume
list
in
main
storage.
This
volume
list
consists
of
volume
pointers
for
all
volurres
on
which
the
data
set
is
stored.
The
first
two
bytes
of
the
list
indicate
the
number
of
volume
pointers
that
follow.
Each
12-byte
volume
pointer
consists
of
a
4-byte
device
code,
a
6-byte
volume
serial
number,
and
a
2-byte
data
set
sequence
number.
The
sequence
number
is
always
zero
for
'direct-access
volumes.
(Device
codes
are
contained
in
Appendix
B
of
this
chapter.)
Example:
In
the
following
example,
the
data
set
named
A.B.C
is
cataloged
under
an
existing
index
structure
A.B.
The
data
set
is
stored
on
two
volumes.
r---------T----------T---------~---------------------------------------,
I Name I
Operation
I
Operand
I
~---------+----------+-------------------------------------------------~
I I
CATA:LOG
I
ADDABC
CATALOG
DATA
SET
A.B.C.
THE
I
, I
Check
Exceptional
Returns
INDEX
STRUCTURE
A.B.
EXISTS I
I
ADDABC
I
CAMLST
I CAT,DSNAME"VOLUMES I
I
DSNAME
I
DC
,
CL6'A.B.C'
ONE
BLANK
FOR
DELIMITER I
I
VOLUMES
I
DC
I H
,.
2'
TWO
VOLUMES
I
I ,
DC
,
X'30002001'
2311
DISK
STORAGE
I
, ,
DC
,
CL6'000014'
VOLU~E
SERIAL
NUMBER
,
, I
DC
, H'
0'
DATA
SET
SEQUENCE
NUMBER
I
, I
DC
I
X'30002001'
2311
DISK
STORAGE
I
, ,
DC
I
CL6'000015'
VOLUME
SERIAL
NUMBER
I
, ,
DC
,
H'O'
SEQUENCE
NUMBER
,
L
_________
~
__________
~
_________________________________________________
J
The
CATALOG
macro-instruction
points
to
the
CAMLST
macro-instruction.
CAT,
the
first
operand
of
CAMLST,
specifies
that
a
data
set
be
cataloged.
DSNAME,
the
second
operand,
specifies
the
main
storage
location
of
an
area
into
which
you
have
placed
the
fully
qualified
name
of
the
data
set
to
be
cataloged.
VOLUMES,
the
fourth
operand,
specifies
the
main
storage
location
of
the
volume
list
you
have
built.
HOW
TO
REMOVE
DATA
SET
REFERENCES
FROM
THE
CATALOG
You
remove
data
set
references
from
the
catalog
by
using
the
CATALOG
and
CAMLST
macro-instructions.
Example:
In
the
following
example,
references
to
data
set
A.B.C
are
removed
from
the
catalog.
r---------T-----------T-------------------------------------------------,
'Name
I
Operation,
Operand
I
~---------+----------+-------------------------------------------------~
I I
CATALOG
I
REMOVE
REMOVE
REFERENCES
TO
DATA
I
I I
Check
Exceptional
Returns
SET
A.B.C
FROM
THE
CATALOG
I
I
REMOVE
I
CAMLST
I
UNCAT,DSNAME
I
I
DSNAME
I
DC
I
CL6'A.B.C'
ONE
BLANK
FOR
DELIMITER I
L
_________
~
___________
~
_________________________________________________
J
The
CATALOG
macro-instruction
points
to
the
CAMLST
macro-instruction.
UNCAT,
the
firs·t
cperand
of
CAMLST,
specifies
that
references
to
a
data
Maintaining
the
Catalog
and
the
Volurre
Table
of
Contents
17
To Next Page
Loading...
Need help?
General