Ted, Sorry Ted. I did not you there.
The choice was to remove SYSIGGV2 from MIM or convert the reserve for the RECON datasets to a Global ENQ. We chose the latter and the problem never happened again. This was actually a fairly common problem for IMS sites after converting SYSIGGV2 reserves with MIM or GRS. Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of > Ted MacNEIL > Sent: Friday, January 22, 2010 11:46 AM > To: [email protected] > Subject: Re: [IBM-MAIN] SHARING USER CATALOGS WITHOUT GRS > > >I must respectfully disagree with the idea that shared DASD using Reserve > constitutes risk of any magnitude, and eventually will lead to deadly > embraces. > > I respectfully disagree with your disagreement. > There used to be a major issue with SYSVTOC/SYSVVDS, User Cats & IXVTOCs. > > The 'fix' from IBM was SYNCHRES=YES as a GRS parm. > This came out with OS/390 V2R7, but didn't work properly for a couple of > releases. > IIRC, NO is still the default and, in that case, the deadly embrace is still a > possibility. > > It has nothing to do with MIM, since local ENQ/RES are still handled by GRS. > MIM, in this case, is just the propagator of globals, just as GRS is. > > - > Too busy driving to stop for gas! > > ---------------------------------------------------------------------- > 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
