SMS allows you to define a management class and to specify that this management class is the default management class. Thus, any SMS data set that is not assigned to a management class by the automatic class selection routine uses the attributes specified in the default management class.
If you do not specify a default management class, DFSMShsm generates its own default by using the default values for all of the management class attributes. Thus, in the absence of a specified default management class, DFSMShsm uses the following values for any SMS-managed data set for which a management class is not assigned.
| Management Class Attribute | Default Value |
|---|---|
| EXPIRE AFTER DAYS NON-USAGE | NOLIMIT |
| EXPIRE AFTER DATE/DAYS | NOLIMIT |
| PARTIAL RELEASE | N |
| PRIMARY DAYS NON-USAGE | 2 |
| LEVEL 1 DAYS NON-USAGE | 60 |
| # GDG ELEMENTS ON PRIMARY | no default |
| ROLLED-OFF GDS ACTION | no default |
| BACKUP FREQUENCY | 1 |
| NUMBER OF BACKUP VERS (Data Set Exists) | 2 |
| NUMBER OF BACKUP VERS (Data Set Deleted) | 1 |
| RETAIN DAYS ONLY BACKUP VER (Data Set Deleted) | 60 |
| RETAIN DAYS EXTRA BACKUP VERS | 30 |
| ADMIN OR USER COMMAND BACKUP | BOTH |
| AUTO BACKUP | Y |
| BACKUP COPY TECHNIQUE | S |
| CLASS TRANSITION | BLANK |
| TRANSITION COPY TECHNIQUE | STD |
| SERIALIZATION ERROR EXIT | NONE |