SMS enhancements for z/OS V2R1

In z/OS® V2R1, SMS introduces these enhancements:

Exploiting clusters and extent pools in SMS volume selection: SMS improves volume selection to exploit clusters and extent pools. SMS now prefers volumes that are in the same cluster when:

Allocating or extending a multi-volume data set if the accessibility attribute is CONTINUOUS or CONTINUOUS PREFERRED
Allocating the target data set for the data set fast replication function.

When allocating a striped data set, SMS now attempts to allocate the stripes across separate extent pools.

Providing accurate space statistics: You can now use a VARY SMS command to update space statistics in the ACDS for a pool storage group or a DASD volume.

Providing an option to suppress SMS messages: SMS provides a new keyword in the IGDSMSxx PARMLIB member that allows an installation to suppress specific SMS messages.

Providing an option to guarantee that a PDS is created: SMS provides a new keyword in the IGDSMSxx PARMLIB member and SETSMS command that allow you to direct SMS to honor any value for DSNTYPE that specifies that a PDSE is to be allocated, regardless of whether directory blocks have been requested.