Hervey, Refer to this section of the DFSMSdfp Storage Administration book and those which follow it http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/dgt2s2a0/6.3.1?SHELF=EZ2ZO213&DT=20110609182050#HDREXPIRE
You need both the management class expiration attributes and the expiration and last ref values for the data set to decide the answer, and hsm takes the decision each time space management is run. Mike Wood ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN