NonStop S-Series Planning and Configuration Guide (G06.29+)

System Components
HP NonStop S-Series Planning and Configuration Guide—523303-021
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Configurations of Memory Units
Compatibility of PMF CRUs
Permanent Coexistence of Enclosures in a System
The NonStop S-series model number of an enclosure is determined by the pair of
PMF CRUs installed in the enclosure. These enclosures can coexist permanently
within a system:
•
S7000 only
•
S7400, S7600, and S7800 can coexist
•
S7600, S7800, and S7800B can coexist
•
S70000, S72000, and S74000 can coexist
•
S72000, S74000, S76000, S78000, S86000, and S88000 can coexist
PMF CRU Compatibility within an Enclosure
Best practices require that both PMF CRUs within an enclosure should have the same
model number and contain the same memory size. An application outage can occur if:
•
The processor and I/O do not run at equivalent speeds
•
The PMF CRU that can sustain the higher transaction rate is taken off line or fails
when it is near maximum utilization.