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Midrange Servers: UltraSPARC IV+/IV Processor-based Systems
High-End Servers: UltraSPARC IV+/IV Processor-based Systems

Midrange Servers: UltraSPARC IV+/IV Processor-based Systems

Product Specifications	Sun Fire V490	Sun Fire V890	Sun Fire E2900	Sun Fire E4900	Sun Fire E6900
CPUs	Up to 4	Up to 8	Up to 12	Up to 12	Up to 24
Processor	UltraSPARC IV+, IV	UltraSPARC IV+, IV	UltraSPARC IV+, IV	UltraSPARC IV+, IV	UltraSPARC IV+, IV
Clock speed	Up to 2.1 GHz	Up to 2.1 GHz	Up to 1.95 GHz	Up to 1.95 GHz	Up to 1.95 GHz
Uniboards or CPU/Memory Boards	Up to 2 dual processor/ memory modules	Up to 4 dual processor/ memory modules	Up to 3 CPU/memory boards*	Up to 3 Uniboard slots	Up to 6 Uniboard slots
I/O Slots	6 PCI	9 PCI	6 PCI-X	16 PCI-X	32 PCI-X
Maximum Memory	Up to 64 GB	Up to 128 GB	Up to 192 GB	Up to 192 GB	Up to 384 GB
Domains (fault isolated)	1	1	1	1-2	1-4
Operating System (Minimum version)	2.1 GHz + 1.8 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.5 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.35 GHz UltraSPARC IV: Solaris 8 2/04, Solaris 9 4/04, and Solaris 10 3/05	2.1 GHz + 1.8 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.5 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.35 GHz UltraSPARC IV: Solaris 8 2/04, Solaris 9 4/04, and Solaris 10 3/05	1.95 GHz + 1.8 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.5 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.35GHz UltraSPARC IV processors: Solaris 8 2/04, Solaris 9 4/04, and Solaris 10 3/05	1.95 GHz + 1.8 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.5 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.35GHz UltraSPARC IV processors: Solaris 8 2/04, Solaris 9 4/04, and Solaris 10 3/05	1.95 GHz + 1.8 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.5 GHz UltraSPARC IV+ processors: Solaris 9 9/05 and Solaris 10 3/05 HW1 1.35GHz UltraSPARC IV processors: Solaris 8 2/04, Solaris 9 4/04, and Solaris 10 3/05
Server Virtualization/ Partitioning	Solaris Containers	Solaris Containers	Solaris Containers	Dynamic System Domains, Solaris Containers	Dynamic System Domains, Solaris Containers

*The Sun Fire E2900 server CPU/memory board is common, and therefore interchangeable, with the Sun Fire V1280 server. However, these boards are not identical to and thus not inter-changeable with the Sun Fire E4900-E25K server Uniboard technology.

* Mix and Match of USIV and USIV+ processors excludes 2.1GHzprocessors

High-End Servers: UltraSPARC IV+/IV Processor-based Systems

Product Specifications	Sun Fire E20K	Sun Fire E25K
CPUs	Up to 36	Up to 72
Processor	UltraSPARC IV+/IV	UltraSPARC IV+/IV
Clock speed	Up to 1.95 GHz	Up to 1.95 GHz
Uniboards or CPU/Memory Boards	Up to 9 Uniboard Slots	Up to 18 Uniboard Slots
PCI-X	36 hot-swappable PCI+-X	72 hot-swappable PCI+-X
Maximum Memory per domain	576 GB	1.15 TB
Maximum Storage (all Sun Fire data center servers support external storage)	250+ TB	250+ TB
Domains (fault isolated)	Up to 9	Up to 18
Operating System	Solaris 9 U8, Solaris 10 3/05	Solaris 9 U8, Solaris 10 3/05
Server Virtualization/Partitioning	Dynamic System Domains Solaris Containers	Dynamic System Domains Solaris Containers

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