Hello Willie, The delete/define can take place before or after. The latter is recommended just in case the repro/mergcat has issues. Its best to make sure the datasets associated with the lever are not in use at the time. It would be even better to lock the catalog before and unlock when the mergcat completes. Locking the catalog will prevent access to the catalog while you are performing maintenance. Before locking the catalog it is best to make sure little to no access is anticipated against the catalog.
The following products have features which making a repro/mergcat operation go smoothly. Some even have restart/backout capabilities. MainStar's Catalog Recovery Plus (CR+) Dino-Software's T-REX EMC Softwork's Catalog Solutions Terry Traylor charlesSCHWAB TIS Mainframe Storage Management Remedy Queue: tis-hs-mstg (602) 977-5154 WARNING: All email sent to or from this address will be received by the Charles Schwab corporate e-mail system and is subject to archival and review by someone other than the recipient. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of willie bunter Sent: Thursday, June 07, 2007 8:13 AM To: IBM-MAIN@BAMA.UA.EDU Subject: REPRO MERGECAT Good Day To all, I will be performing a catalog clean up. I will be doing a REPRO MERGECAT. My question is will that process delete the alias or do I need to delete the alias before I redefine it? Below is my jcl: //MERGECAT EXEC PGM=IDCAMS,REGION=4M,TIME=1440,COND=(0,NE) //* //DD1 DD VOL=SER=PROX1,UNIT=SYSALLDA,DISP=SHR // DD VOL=SER=PROX2,UNIT=SYSALLDA,DISP=SHR //CATIN DD DSN=UCAT.PROM,DISP=SHR //CATOUT DD DSN=UCAT.PROD,DISP=SHR //SYSPRINT DD SYSOUT=* //SYSIN DD * REPRO - INFILE(CATIN) - OUTFILE(CATOUT) - LEVEL(ZWA6PW) - MERGECAT - FILE(DD1) /* //* REDEFINE ALIAS TO POINT TO OUTPUT CATALOG //* //******************************************************** //* //DEFALIAS EXEC PGM=IDCAMS,REGION=4M,TIME=1440,COND=(0,NE) //* //SYSPRINT DD SYSOUT=* //SYSIN DD * DEL ZWA6PW ALIAS DEF ALIAS(NAME(ZWA6PW) RELATE(UCAT.PROD)) /* Thanks in advance. --------------------------------- Be a PS3 game guru. Get your game face on with the latest PS3 news and previews at Yahoo! Games. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html