186 IBM eServer zSeries 900 Technical Guide
Minimized overhead of duplexing during mainline operation via hardware-assisted
serialization and synchronization between the primary and secondary structure updates
Maximized availability in failure scenarios by providing a rapid failover to the unaffected
structure instance of the duplexed pair, with very little disruption to the ongoing execution
of work by the exploiter and applications
System-managed duplexing rebuild provides robust failure recovery capability via the
redundancy of duplexing, and low exploitation cost via system-managed, internalized
processing. Structure failures, CF failures, or losses of CF connectivity can be handled by:
1. Hiding the observed failure condition from the ...