Введение
Серия Unix-рабочих станций и серверов Sun 4 — это серия Unix-рабочих станций и серверов, разработанная и выпущенная компанией Sun Microsystems в 1987 году. Первые модели серии Sun 4 были построены на базе шины VMEbus, как и более ранняя серия Sun 3, но использовали микропроцессоры на основе собственной RISC-архитектуры SPARC V7 от Sun вместо процессоров семейства 68k, применявшихся в предыдущих моделях Sun. Sun 4/280 известен как базовая система, использованная для создания первого прототипа RAID.
Series of Unix workstations and servers
Sun 4 is a series of Unix workstations and servers produced by Sun Microsystems, launched in 1987. The original Sun 4 series were VMEbus based systems similar to the earlier Sun 3 series, but employing microprocessors based on Sun's own SPARC V7 RISC architecture in place of the 68k family processors of previous Sun models. Sun 4/280 was known as base system that was used for building of first RAID prototype.
Sun 4 is a series of Unix workstations and servers produced by Sun Microsystems, launched in 1987. The original Sun 4 series were VMEbus based systems similar to the earlier Sun 3 series, but employing microprocessors based on Sun's own SPARC V7 RISC architecture in place of the 68k family processors of previous Sun models. Sun 4/280 was known as base system that was used for building of first RAID prototype.
Архитектура Sun-4
Архитектура Sun 4 относится к архитектуре на основе VME, описанной выше, и использовалась в моделях Sun 4/100, 4/200, SPARCserver 300 и SPARCserver 400. Поддержка Sun 4 была включена в SunOS 3.2 и более поздних версиях, а также в Solaris 2.1–2.4. OpenBSD и NetBSD также поддерживают архитектурные семейства Sun 4. Впоследствии было разработано несколько вариантов архитектуры Sun 4, которые использовались в более поздних компьютерных системах, выпускаемых Sun и другими производителями. К ним относятся:
The Sun 4 architecture refers to the VME based architecture described above and used in the Sun 4/100, 4/200, SPARCserver 300 and SPARCserver 400 ranges. Sun 4 support was included in SunOS 3.2 onwards and Solaris 2.1 to 2.4. OpenBSD and NetBSD also will run on the Sun 4 architecture families. Several variations on the Sun 4 architecture were subsequently developed and used in later computer systems produced by Sun and other vendors. These comprised:
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C, предположительно, от Campus – кодовое название первой модели Sun 4c, SPARCstation 1). Этот настольный вариант рабочей станции/сервера начального уровня заменил 32-битную шину расширения SBus вместо VME и представил новую конструкцию MMU. Поддерживается SunOS 4.0.3c и Solaris 2.0–7.
The Sun 4 architecture refers to the VME based architecture described above and used in the Sun 4/100, 4/200, SPARCserver 300 and SPARCserver 400 ranges. Sun 4 support was included in SunOS 3.2 onwards and Solaris 2.1 to 2.4. OpenBSD and NetBSD also will run on the Sun 4 architecture families. Several variations on the Sun 4 architecture were subsequently developed and used in later computer systems produced by Sun and other vendors. These comprised:
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4e. Гибридная архитектура Sun 4c/VME, используемая во встроенном контроллере SPARCengine 1 (Sun 4/E) VME. Эта плата была первоначально разработана компанией Force Computers и лицензирована Sun. Поддерживается SunOS 4.0.3e и 4.1e, а также Solaris 2.1–2.4.
The Sun 4 architecture refers to the VME based architecture described above and used in the Sun 4/100, 4/200, SPARCserver 300 and SPARCserver 400 ranges. Sun 4 support was included in SunOS 3.2 onwards and Solaris 2.1 to 2.4. OpenBSD and NetBSD also will run on the Sun 4 architecture families. Several variations on the Sun 4 architecture were subsequently developed and used in later computer systems produced by Sun and other vendors. These comprised:
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4m. Изначально многопроцессорный вариант Sun 4, основанный на шине модулей процессора MBus, представленной в серии SPARCserver 600MP. Позже архитектура Sun 4m также включала в себя однопроцессорные системы, не использующие MBus, такие как SPARCstation 5, с процессорами архитектуры SPARC V8. Поддерживается SunOS 4.1.2 и более поздних версий, а также Solaris 2.1–9. Поддержка сервера SPARCserver 600MP была прекращена после Solaris 2.5.1.
The Sun 4 architecture refers to the VME based architecture described above and used in the Sun 4/100, 4/200, SPARCserver 300 and SPARCserver 400 ranges. Sun 4 support was included in SunOS 3.2 onwards and Solaris 2.1 to 2.4. OpenBSD and NetBSD also will run on the Sun 4 architecture families. Several variations on the Sun 4 architecture were subsequently developed and used in later computer systems produced by Sun and other vendors. These comprised:
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4d (D от Dragon – кодовое название SPARCcenter 2000). Высокопроизводительная многопроцессорная архитектура, основанная на межсоединении процессоров XDBus, масштабируемая до 20 процессоров. Единственными системами Sun 4d, выпущенными Sun, были серии SPARCserver 1000 и SPARCcenter 2000. Cray CS6400 также номинально являлся машиной Sun 4d (sun4d6), хотя для его работы требовалась специальная версия Solaris. Поддерживается Solaris 2.2–8.
The Sun 4 architecture refers to the VME based architecture described above and used in the Sun 4/100, 4/200, SPARCserver 300 and SPARCserver 400 ranges. Sun 4 support was included in SunOS 3.2 onwards and Solaris 2.1 to 2.4. OpenBSD and NetBSD also will run on the Sun 4 architecture families. Several variations on the Sun 4 architecture were subsequently developed and used in later computer systems produced by Sun and other vendors. These comprised:
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4u (U от UltraSPARC). Этот вариант представил 64-битную архитектуру процессора SPARC V9 и межсоединение процессоров UPA, впервые использованные в серии Sun Ultra. Поддерживается 32-битными версиями Solaris, начиная с версии 2.5. Первый 64-битный релиз Solaris для Sun4u – Solaris 7. Поддержка UltraSPARC I была прекращена после Solaris 9. Solaris 10 поддерживает реализации Sun4u от UltraSPARC II до UltraSPARC IV.
The Sun 4 architecture refers to the VME based architecture described above and used in the Sun 4/100, 4/200, SPARCserver 300 and SPARCserver 400 ranges. Sun 4 support was included in SunOS 3.2 onwards and Solaris 2.1 to 2.4. OpenBSD and NetBSD also will run on the Sun 4 architecture families. Several variations on the Sun 4 architecture were subsequently developed and used in later computer systems produced by Sun and other vendors. These comprised:
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4u1. Иногда используется для обозначения 64-путевой многопроцессорной серверной архитектуры Sun Enterprise 10000 (Starfire). Starfire поддерживается Solaris 2.5.1 и более поздних версий.
The Sun 4 architecture refers to the VME based architecture described above and used in the Sun 4/100, 4/200, SPARCserver 300 and SPARCserver 400 ranges. Sun 4 support was included in SunOS 3.2 onwards and Solaris 2.1 to 2.4. OpenBSD and NetBSD also will run on the Sun 4 architecture families. Several variations on the Sun 4 architecture were subsequently developed and used in later computer systems produced by Sun and other vendors. These comprised:
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4us. Вариант Sun 4u, используемый в системах Fujitsu PRIMEPOWER на базе процессоров SPARC64 V.
The Sun 4 architecture refers to the VME based architecture described above and used in the Sun 4/100, 4/200, SPARCserver 300 and SPARCserver 400 ranges. Sun 4 support was included in SunOS 3.2 onwards and Solaris 2.1 to 2.4. OpenBSD and NetBSD also will run on the Sun 4 architecture families. Several variations on the Sun 4 architecture were subsequently developed and used in later computer systems produced by Sun and other vendors. These comprised:
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4v (V, предположительно, от "виртуализированный"). Вариант Sun 4u, включающий виртуализацию процессора гипервизором, представленный в многоядерном процессоре UltraSPARC T1 (Niagara). Поддерживается Solaris версии 10, начиная с релиза 3/05 HW2, и Solaris 11.
The Sun 4 architecture refers to the VME based architecture described above and used in the Sun 4/100, 4/200, SPARCserver 300 and SPARCserver 400 ranges. Sun 4 support was included in SunOS 3.2 onwards and Solaris 2.1 to 2.4. OpenBSD and NetBSD also will run on the Sun 4 architecture families. Several variations on the Sun 4 architecture were subsequently developed and used in later computer systems produced by Sun and other vendors. These comprised:
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.
Sun 4c (C presumably for Campus, the codename of the first Sun 4c model, the SPARCstation 1) This desktop workstation/low end server variant substituted the 32 bit SBus expansion bus in place of VME and introduced a new MMU design. Supported by SunOS 4.0.3c onwards and Solaris 2.0 to 7. Sun 4e A hybrid Sun 4c/VME architecture found in the SPARCengine 1 (Sun 4/E) VME embedded controller. This board was originally designed by Force Computers and licensed to Sun. Supported by SunOS 4.0.3e and 4.1e and Solaris 2.1 to 2.4. Sun 4m Originally a multiprocessor Sun 4 variant, based on the MBus processor module bus introduced in the SPARCserver 600MP series. The Sun 4m architecture later also encompassed non MBus uniprocessor systems such as the SPARCstation 5, utilizing SPARC V8 architecture processors. Supported by SunOS 4.1.2 onwards and Solaris 2.1 to 9. SPARCserver 600MP support was dropped after Solaris 2.5.1. Sun 4d (D for Dragon, the codename of the SPARCcenter 2000) A high end multiprocessor architecture, based on the XDBus processor interconnect, scalable up to 20 processors. The only Sun 4d systems produced by Sun were the SPARCserver 1000 and SPARCcenter 2000 series. The Cray CS6400 was also nominally a Sun 4d machine (sun4d6), although it required a custom version of Solaris. Supported by Solaris 2.2 to 8. Sun 4u (U for UltraSPARC) this variant introduced the 64 bit SPARC V9 processor architecture and UPA processor interconnect first used in the Sun Ultra series. Supported by 32 bit versions of Solaris from the version 2.5. The first 64 bit Solaris release for Sun4u is Solaris 7. UltraSPARC I support was dropped after Solaris 9. Solaris 10 supports Sun4u implementations from UltraSPARC II to UltraSPARC IV. Sun 4u1 Sometimes used to identify the Sun Enterprise 10000 (Starfire) 64 way multiprocessor server architecture. The Starfire is supported by Solaris 2.5.1 onwards. Sun 4us A variant of Sun 4u specific to Fujitsu PRIMEPOWER systems based on SPARC64 V processors. Sun 4v (V presumably for "virtualized") A variation on Sun 4u which includes hypervisor processor virtualization; introduced in the UltraSPARC T1 (Niagara) multicore processor. Supported by Solaris version 10 starting from release 3/05 HW2, and Solaris 11.