In z/OS R9 the Binder rejects request to write to a PDS that has non-RECFM U, unless RECFM=U is explicitly overriden. This behavior now matches the behavior for PDSEs. So if you try to link into your JCL PDS you won't damage it.
z/OS V1 R9 BINDER 14:48:52 TUESDAY JULY 8, 2008 BATCH EMULATOR JOB(DSS06ZSK) STEP(JS002 ) PGM= IEWL PROCEDURE(L ) IEW2278I B352 INVOCATION PARAMETERS - NORENT IEW2735S DA0F OUTPUT DATA SET FOR DDNAME SYSLMOD HAS INVALID RECORD FORMAT. RECFM=U IS REQUIRED. IEW2008I 0F03 PROCESSING COMPLETED. RETURN CODE = 12. Very Nice! Best Regards, Sam Knutson, GEICO System z Performance and Availability Management mailto:[EMAIL PROTECTED] (office) 301.986.3574 "Think big, act bold, start simple, grow fast..." ==================== This email/fax message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of this email/fax is prohibited. If you are not the intended recipient, please destroy all paper and electronic copies of the original message. ---------------------------------------------------------------------- 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