To minimize the chance of such a problem, avoid temporarily stopping more than one system at a time. If your operators regularly issue VARY GRS(sysname),QUIESCE for a system before stopping it, you can avoid any recovery problems related to temporarily stopped systems. See Operating the ring complex for additional information about operating a global resource serialization complex.

To use ring acceleration, specify ACCELSYS on all systems. ACCELSYS(2) provides the maximum performance benefits. Global resource serialization rejects an ACCELSYS value that is less than 2 or greater than 99. The operator must re-IPL with a valid value, or specify GRS=NONE to continue with the IPL. Specifying a value greater than the number of systems in the complex turns ring acceleration off. The default is ACCELSYS(99), which turns ring acceleration off. You can change the ACCELSYS value to tune enqueue response time. See ACCELSYS value for more information.