Sun Fire 15K

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The Sun Fire 15K is an enterprise-class server computer from Sun Microsystems. General availability was in January 2002; the last to be shipped was in May 2005. It has been superseded by the Sun Fire E25K.

The Sun Fire 15K supports up to 106 processors, either UltraSPARC IIIs (up to 1.2 GHz) or UltraSPARC IVs (up to 1.35GHz). Maximum physical RAM per system is 576 GB. A maximum of 72 PCI I/O slots are available.

The system can be divided into a maximum of 18 secure independent domains, each of which is a separate machine with its own filesystems, root password and can run different versions of the Solaris operating system. Administrators can dynamically change the assignment of RAM and processors to the different domains to meet changes in business needs. In addition, the 15K contains two system controllers (duplicated for redundancy), which are Solaris systems used to manage the 15K and perform tasks such as booting and shutting down domains and assigning CPUs and RAM to domains. The 15K contains minimal storage in itself (only system controller boot disks); it is connected to a separate enterprise storage system such as a Sun StorEdge 99xx model.