Chapter 4. Continuous availability and manageability
135
operation on the remaining stable hardware. This prevents the same faulty hardware from
affecting system operation again, and the repair action is deferred to a more convenient, less
critical time.
Persistent deallocation functions include:
Processor
Memory
Deconfigure or bypass failing I/O adapters
Figure 4-2 shows the ASMI window.
Figure 4-2 ASMI Auto Power Restart setting
Dynamic processor deallocation
Dynamic processor deallocation enables automatic deconfiguration of processor cores when
patterns of recoverable errors, for example correctable errors on processor caches, are
detected. Dynamic processor deallocation prevents a recoverable error from escalating to an
unrecoverable system error, which could result in an unscheduled server outage. Dynamic
processor deallocation relies on the service processor’s ability to use FFDC-generated
recoverable error information to notify the POWER Hypervisor when a processor core
reaches its predefined error limit. Then, the POWER Hypervisor, in conjunction with the
operating system, redistributes the work to the remaining processor cores, deallocates the
offending processor core, continues normal operation, and can revert from simultaneous
multiprocessing to uniprocessor processing.
Note:
The auto-restart (reboot) option has to be enabled from the Advanced System
Manager interface (ASMI) or from the Operator Panel.
Содержание Power 595
Страница 2: ......
Страница 120: ...108 IBM Power 595 Technical Overview and Introduction...
Страница 182: ...170 IBM Power 595 Technical Overview and Introduction...
Страница 186: ...174 IBM Power 595 Technical Overview and Introduction...
Страница 187: ......