Hi, We have (some) datasets with an expiration date (EXPDT), but we want to remove those EXPDTs in order to have the datasets managed by ONLY the MGMTCLASS 'Retention Limit'. I know the rules by which 'Retention Limit' *CAN* co-exist with & work together with the 'Expiration Attributes' RETPD or EXPDT. (They are explained in SC26-7402-02 zOS V1R5.0 DFSMSdfp Storage Administration Reference on page 68-69.) So we might play with 'Retention Limit', but we can't & don't want to do so. Changing the MGMTCLASS 'Retention Limit' might/would have to much impact on the other (non-EXPDT) datasets. Changing such a MGTCLASS attribute is absolutely forbidden. By death penalty. :( * With IDCAMS ALTER TO(date)|FOR(days) you can 'alter' the retention period (of course!) & hence update the expiration date in the catalog, and, for SMS-managed data sets, change the expiration date in the format-1 DSCB; but you can *NOT* 'delete' it as far as I know. At least not via an officially supported way. * Do you know (other) means to get rid of the expiration date in catalogs or format-1 DSCBs? Jan
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