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zFS data sets cannot be provided via ddnames. To obtain the zFS data set names, USLIST and USLRM allocate and parse the Universal Broker's configuration member, UBRCFG00, for the UNIX_DB_DATA_SET and UNIX_SPOOL_DATA_SET options. If these options are not found, USLIST and USLRM assume that HFS data sets are being used and refer to the UNVDB and UNVSPOOL ddnames for the HFS data set names.
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