George, You may need a copy of the MVS Companion soon. When you allocate a dataset on MVS you have to give it a disposition (what to do with it when you close it). The default is often to throw it away. There are also options for how big to make it, and where to put it. Some of these options are site-specific. You are likely to want a libname statement like:

LIBNAME MYSET 'MYID.XXX.YYY' DISP=(NEW,CATLG) SPACE=(TRK,(15,1),RLSE);

This allocates a new dataset of 15 tracks (with 15 tracks of expansion room) and catalogs it (so you can find it again). On subsequent use you can omit SPACE, but you will want to code DISP=OLD to get write access or DISP=SHR for shared access.

Regarding the ISPF error, I suspect you start in SPF, then load SAS under that. If so, you may have to quit SAS (the BYE command) rather than shelling out (the X command). There have been tips posted here on SAS-L regarding better integration of SAS and ISPF--they sound cool but I have not had time to follow up.

Good luck! Tim Berryhill - Contract Programmer and General Wizard TWB2@PGE.COM or http://www.aartwolf.com/twb.html Frequently at Pacific Gas & Electric Co., San Francisco The correlation coefficient between their views and my postings is slightly less than 0 ----------------------[Reply - Original Message]----------------------

Sent by:"GC" <guoro_ch@ALCOR.CONCORDIA.CA> Hi, SAS experts,

I have recently move to MVS TSO environment and have difficult in using <SNIP>