Manual restart

The operator actions assume a fully-connected four-system complex. Assume that SYS1 failed and that SYS2 detected the failure. Assume also that GRSCNFxx specified RESTART(NO) and REJOIN(NO) for all systems.

On SYS2, the following messages appear:

    
  ISG023E GLOBAL RESOURCE SERIALIZATION HAS BEEN DISRUPTED - GLOBAL
          RESOURCE REQUESTORS WILL BE SUSPENDED
  ISG025E SYSTEM SYS2 UNABLE TO INITIATE AUTORESTART PROCESSING - THIS
          SYSTEM IS NOT AUTHORIZED

These messages indicate that an error has disrupted ring processing, and that the system is not authorized to restart the complex automatically. All active systems become inactive; any task that tries to obtain or free a global resource is suspended. Message ISG023E and message ISG025E appear on all of the other systems in the complex.
Tasks suspended while waiting for resources will quickly affect throughput on all systems; it is therefore imperative that an operator start recovery immediately.