>From MXG NEWSLTRS:
5. SAS Note SN-V9-017038 reports that SAS V9.1.3 with Service Pack 4
and with that Hot Fix can use DSNTYPE=LARGE datasets under z/OS 1.7
and later for bound SAS data libraries on disk.
DSNTYPE=LARGE z/OS datasets can occupy more than 64K tracks on a
single volume, so those datasets can fill all available tracks on
the largest volumes (54GB) that are currently available, reducing
the number of volumes for large SAS data libraries.
To create a "direct access bound library that resides in a DSNTYPE=
LARGE data set", you must externally allocate the library data set
with the DSNTYPE=LARGE parameter:
// EXEC MXGSASV9
//LARGEDB DD DSN=YOUR.DSNTYPE.LARGE,DISP=(,CATLG),UNIT=SYSDA,
// SPACE=(CYL,(5000,5000)),DSNTYPE=LARGE
Nov 7, 2007 update: Prior to z/OS 1.7, there was an IBM limit of
64K tracks when the I/O access method was EXCP, but IBM removed that
limit in 1.7, and the SAS Hot Fix above revised SAS EXCP code so the
DSNTYPE=LARGE can be fully exploited.
Barry
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