After the stand-alone dump program is properly created on a DASD residence volume, it resides in the SYS1.PAGEDUMP.Vvolser data set. To ensure that the stand-alone dump program is available and processes successfully, do not delete the data set or move it to another volume or pack. To protect the stand-alone dump program in SYS1.PAGEDUMP.Vvolser, use a password or a security product, such as RACF®. If the data set is not protected, unauthorized users can read the dump data in SYS1.PAGEDUMP.Vvolser. Also consider protecting the stand-alone dump output dump data sets from unauthorized reading.
See z/OS Security Server RACF Security Administrator's Guide for more information about protecting a data set.