5. Maintenance › 5.16 SAS Configuration Options Used by CA MICS › 5.17.4 CA MICS Support of PDSEs

5.17.4 CA MICS Support of PDSEs

With the exclusion of the LOAD library as discussed earlier,
existing CA MICS complex and unit level partitioned data sets
(PDSes) can be MANUALLY converted to partition data
set-extended data sets (PDSEs).

The CA MICS installation jobs as well as the Optional Product
Installation jobs have been modified to allocate the
installation (complex) data sets as either partitioned or
partitioned-extended data sets by the use of a user specified
parameter.  The default is still PDS format.

The PSYyymmL job has been modified such that it recognizes a
PDSE data set.  Currently during the maintenance unload job,
the PSP libraries generally get deleted and reallocated for
one or both of the following two reasons:

o  Insufficient directory blocks on the PDS to support the
   additional unloaded members

o  Insufficient space allocated to the PDS to support the
   additional unloaded members

If during the maintenance unload job a library is identified
as a PDSE, the directory blocks will no longer be
interrogated to determine whether or not to delete and
reallocate the PSP library.  Only insufficient space will
result in deletion and allocation of a new PSP data set.

Any data sets already converted to PDSE format will be
reallocated in the same format.  In addition, the PSP refresh
processes have all been enhanced to allow specification of
the data set type.  Any libraries that get reallocated will
use this parameter to determine data set format (PDS or
PDSE).   The default is PDS format.