Hi Dennis, You should be able to use FASTCPK (Compaktor) to release the space in the HFS file down to the HWM of used blocks.
The JCL would be similar to: //RELEASE EXEC PGM=FDRCPK,REGION=0M //SYSPRINT DD SYSOUT=* //SYSMAP DD SYSOUT=* //SYSUDUMP DD SYSOUT=* //SYSIN DD * CPK TYPE=RLSE SELECT DSN=OMVS.CPAC.ZOSAR1.JV390,RLSE=TRK /* If you want to leave some free space, then add a %FREE= with the percentage to leave free. SELECT DSN=OMVS.CPAC.ZOSAR1.JV390,RLSE=TRK,%FREE=nn Any questions, please give us a call. Joseph Butz [email protected] Innovation Data Processing -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Dennis McCarthy Sent: Tuesday, April 21, 2009 1:06 PM To: [email protected] Subject: Decreasing an HFS Environment: Testing z/OS 1.9 I use FDR to copy my HFS file systems when doing maintenance. I was able to successfully copy them (JV390, JAVA64V5 and JAVA64V6) to a larger size, but now that I see I've over allocated then, I want to copy again to a smaller size. They are currently 25,000 tracks each with a max of 16% used. Pre- allocation of even 10,000 tracks results in an "INSUFFICIENT SPACE" error message: FDR111** VOL=HFSZ01,DSN=OMVS.CPAC.ZOSAR1.JV390 HAS INSUFFICIENT SPACE ALLOCATED - 010000 TRACKS FDR111** NUMBER OF TRACKS NECESSARY=025000 FDR111** EXTENT CYL=01112 TRK=08,CYL=02199 TRK=04 FDR111** EXTENT CYL=02308 TRK=01,CYL=02887 TRK=13 FDR326** COPY ENDED WITH NO DATA SETS COPIED VOL=HFSZ01 If I allow FDR to allocate, it will attempt to get the 25,000 tracks, and I don't have the space on DASD. As an absolute last resort, I can get another pack, but I'd rather not. Suggestions? Regards, Dennis ---------------------------------------------------------------------- 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
