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Sun Fire 15K
The Sun Fire 15K (codenamed ''Starcat'') was an enterprise-class server computer from Sun Microsystems based on the SPARC V9 processor architecture. It was announced on September 25, 2001 in New York City, superseding the Sun Enterprise 10000. General availability was in January 2002; the last to be shipped was in May 2005.
The Sun Fire 15K supported up to 106 UltraSPARC III processors (up to 1.2 GHz), or 72 UltraSPARC IVs (up to 1.35 GHz) installed across 18 system boards (''Uniboards'', containing CPU sockets and RAM slots). With the UltraSPARC III, Sun supported up to 17 dual-socket "MaxCPU" processor cards in place of I/O mezzanine cards, a configuration not supported with UltraSPARC IV. 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 the ability to run different versions of Solaris. The E15k, along with other enterprise Sun servers, has the Dynamic Reconfiguration feature: administrators could 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 embedded SPARC computers running Solaris and used to manage the 15K and perform tasks such as booting and shutting down domains and assigning Uniboards to domains. The 15K contains minimal storage in itself (only system controller boot disks); it is connected via SAN to a separate storage array.
==Sun Fire 12K==
The Sun Fire 12K (codenamed ''Starkitty''), was a reduced configuration version of the 15K, introduced in April 2002. It supported a maximum of 52 processors, and was intended to fill a position in Sun's server product line between the 15K and the Sun Fire 6800.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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