SAS(R) 9.1.3 Companion for z/OS

Obs in First Data Page
is the number of data records in the first data page.
Procedures under z/OS CONTENTS Procedure 307
The DIRECTORY option lists several host-specific data library attributes at the
beginning of PROC CONTENTS output. The following output shows the directory
information that is listed by the following code:
proc contents data=test._all_ directory;
run;
Output 16.5 Engine/Host Dependent Information
CONTENTS PROCEDURE
-----Directory-----
Libref: TEST
Engine: V9
Physical Name: USERID.TEST.TESTLIB
Unit: DISK
Volume: TST810
Disposition: OLD
Device: 3380
Blocksize: 6144
Blocks per Track: 7
Total Library Blocks: 105
Total Used Blocks: 28
Total Free Blocks: 77
Highest Used Block: 28
Highest Formatted Block: 35
Members: 2
# Name Memtype Indexes
_________________________
1 TEMP DATA
2 XYZ DATA
The following list explains these data library attributes:
Total Library Blocks
is the total number of blocks that are currently allocated to the data library. This
value equals the sum of Total Used Blocks and Total Free Blocks. It also equals
Blocks per Track multiplied by the number of tracks that are currently allocated to
the data library. The current number of allocated cylinders or tracks can be found
in the DSINFO window, or in ISPF panel 3.2. These windows show what the
allocation was the last time the data library was closed.
Total Used Blocks
is the total number of library blocks that currently contain valid data. It equals
the sum of the directory blocks and all the data blocks that are associated with
existing members.
Total Free Blocks
is the total number of currently allocated library blocks that are available for use
by members or as extra directory blocks. This count includes any data blocks that
were previously associated with members that have been deleted.
Highest Used Block
is the number of the highest relative block in the data library that currently
contains either directory information or data for an existing member.