Problem:
Is Mainframe Access compatible with z/OS 1.4 running 64-bit?
Resolution:
Yes.
If you are running MFA 2.0 PTF 7 or MFA 3.0, you should not have any problems with 64-bit. They are written using 31-bit addressing that is compatible with IBM s 64-bit implementation.
The version of MFA can be determined by looking at the MFA started task job log. You will see something like...
J E S 2 J O B L O G -- S Y S T E M C S I A -- N O D
05.33.09 STC00976 ---- FRIDAY, 16 JUL 2004 ----
05.33.09 STC00976 IEF695I START MFAMAS WITH JOBNAME MFAMAS IS ASSIGNED TO U
05.33.09 STC00976 $HASP373 MFAMAS STARTED
05.33.09 STC00976 IEF403I MFAMAS - STARTED - TIME=05.33.09
05.33.10 STC00976 MFA302I.MFAMAS.MFARSC00 / ATTACHING VTAM PROCESSOR
05.33.10 STC00976 MFA302I.MFAMAS.MFARSC00 / ATTACHING MFATCQOE TCP/IP DIRECT PR
05.33.10 STC00976 MFA110I.MFAMAS.MFAFSQ00 / VTAM PROCESSOR ACTIVE USING VTAMAPP
05.33.10 STC00976 MFA303I.MFAMAS.MFARSC00 / MFA/MVS V2.01 - PTF 2001PTF7 COPYRIGH
... the last line here details the version and any ptf applied - in this case PTF7.
As for z/OS 1.4, we have not tested directly with this version. We had z/OS 1.2 on our mainframe and have recently upgraded to z/OS 1.5 and have not experienced any issues with either version. Several of our customers are running with z/OS 1.4 and none have reported problems.
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