H06.03 Release Version Update Compendium

H06.03 Release Version Update Compendium—540008-002
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1 H06.03 Overview
This section provides an overview to the H06.03 RVU:
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NonStop Advanced Architecture
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Operational Differences Between Systems Running H-Series and G-Series
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Application Differences Between the H-Series and G-Series RVUs
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Networking Differences Between the H-Series and G-Series RVUs
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Major New Features for H06.03
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SUT-Based Products Migrating to H-Series
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SUT-Based Products Not Migrating to H-Series
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IPs Available at H06.03
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IPs Not Migrating to H-Series
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IPs That Become SUT Products on H-Series
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Preparation, Planning, and Migration
NonStop Advanced Architecture
HP Integrity NonStop NS-series systems employ a unique method for achieving fault
tolerance in a symmetrical multiprocessor (SMP) environment: the modular NonStop
advanced architecture (NSAA). NSAA utilizes standard Intel® Itanium® SMP
microprocessors without cycle-by-cycle lock-stepping. Instead, two or three
microprocessors run the same instruction stream concurrently in a loose lockstep
process. In loose lockstep:
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Each microprocessor runs at its own clock rate.
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Results of each command execution are compared on processor output to the
ServerNet fabric.
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Error recovery and minor indeterminate processing results from one
microprocessor do not cause output comparison errors.
For details, see the NonStop NS-Series Planning Guide.
The H-series RVUs of the HP NonStop operating system run on the new Intel Itanium
microprocessor that implements the Itanium architecture. H-series RVUs support
Integrity NonStop NS-series servers and provide application-level binary compatibility
and full data compatibility with all previous HP NonStop systems (except those
applications that are converted to native MIPS RISC instructions or that contain calls to
certain PRIV procedures, both of which must be recompiled). This new architecture
creates major changes in compiling applications, in hardware, and in site preparation.