http://www-01.ibm.com/support/docview.wss?uid=swg21178068
If the shared library cache is not big enough, then z/OS will revert to normal storage use and the load module will be loaded into the broker address space. [That would mean multiple copies of the programs.] http://publib.boulder.ibm.com/infocenter/cicsts/v2r3/index.jsp?topic=/com.ibm.cics.ts23.doc/dfht3/dfht3gl.htm Tuning the z/OS shared library region The shared library region is a z/OS feature that enables address spaces |to share dynamic link library (DLL) files. This feature enables your CICS |regions to share the DLLs that are needed for JVMs, rather than each region |having to load them individually. This can greatly reduce the amount of real |storage used by MVS, and the time it takes for the regions to load the files. The storage that is reserved for the shared library region is allocated |in each CICS region when the first JVM is started in the region. (This might |be the master JVM that initializes the shared class cache.) The amount of |storage that is allocated is controlled by the SHRLIBRGNSIZE parameter in |z/OS, which is in the BPXPRMxx member of SYS1.PARMLIB. The minimum is 16MB, |and the z/OS default is 64MB. You can tune the amount of storage that is allocated |for the shared library region by investigating how much space you actually |need, bearing in mind that other applications besides CICS might be using |the shared library region, and adjusting the SHRLIBRGNSIZE parameter accordingly. [deleted] Bring up your normal workload on the z/OS system, then issue |the command D OMVS,L to display the library statistics. [deleted] On Sat, Oct 29, 2011 at 10:46 PM, Lizette Koehler <stars...@mindspring.com> wrote: > Tonight I got a message of BPXI039I for the SHRLIBRGNSIZE being 100% for the > value of 67108864 > > Now it tells me to raise this value with a SETOMVS or SET OMVS. However, is > there a way to see what is consuming this resource? And how to determine > how to safely raise the value if necessary? > > I want to make sure we have sufficient resources to raise it up. > > Thanks > > Lizette -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
