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2-2 SPARC Enterprise M8000/M9000 Servers Overview Guide • December 2010
The M8000 server, M9000 server, and the M9000 server with expansion cabinet take
advantage of system scalability by supporting up to 16, 32, or up to 64 CPU
modules, respectively.
CPU modules running at different clock frequencies can be used in a single system.
The latest CPUs can therefore be installed when improved processing performance is
required.
The SPARC64 VII processor extends the 64-bit integer multiply-accumulate
operation function and the hardware barrier function.
The SPARC64 VII+ processor expands the capacity of L2 cache memory to 12MB.
Note – To make maximum use of the 12MB L2 cache memory, it is necessary to use
a certain type of CMU (CMU_C) and mount the CPU modules which consist entirely
of the SPARC64 VII+ processors. If the CPU modules of different frequencies are
mixed on CMU_C, the usable L2 cache memory is 6MB. Also, if you use other types
of CMU (CMU_A or CMU_B) and mount the CPU modules which consist entirely of
the SPARC64 VII+ processors, the usable L2 cache memory is to 6MB.
The type of CMU which has been mounted on the server can be confirmed by using
the showhardconf command. For details of the showhardconf command, see the
SPARC Enterprise M3000/M4000/M5000/M8000/M9000 Servers XSCF Reference Manual.
2.1.1.1 Mounted Processors and CPU Operational Modes
The M8000/M9000 servers can mount the SPARC64 VI processors, the SPARC64 VII
processors, the SPARC64 VII+ processors, or a mix of those different types of
processors. This section applies only to M8000/M9000 servers that run SPARC64 VII
or SPARC64 VII+ processors.
Note – Supported firmware and Oracle Solaris OS will vary based on the processor
type. For details, see the latest version of the Product Notes (for XCP version 1100 or
later) for your server.