IRIX

Sumário

IRIX é um sistema baseado no UNIX feito pela SGI que corre em máquinas SGI MIPS.

Tipo de SO: proprietary UNIX

Versão corrente: 6.5.2

Hardware suportado: SGI MIPS

• 6.2: MIPS R4000 to R10000 based SGIs
• 6.4: MIPS R10000 based SGIs
• 6.5: “is back to being an all-platforms release; amongst the systems which are supported by 6.5.x would be R4000, R4400, R4600, R5000, R8000, and R10000 MIPS CPU based systems (but certain configurations of systems that run with R4000 CPUs are no longer supported).”

Máximo numero de processadores: 128

“The entry into the product line is a one- to eight-processor deskside system that can be rack-mounted and seamlessly expanded to 128 processors, providing up to 256GB of shared physical memory and 80GB per second of sustained I/O bandwidth. The key component of an Origin2000 system is a modular building block of processors, I/O, memory, system bandwidth, power supplies, and chassis. A single module supports one to eight MIPS® R10000™ processors and 64MB to 16GB of memory, and provides more than 5GB per second of sustained I/O bandwidth. Each module also internally supports up to five 3.5-inch Ultra SCSI devices and a CD-ROM. As your needs grow, you can expand the system by adding modules and linking them with the revolutionary Silicon Graphics® CrayLink™ Interconnect, a high-speed, scalable interconnect fabric that provides a single system image across all modules. Alternatively, you can use CrayLink Interconnect to link multiple modules into a tightly integrated array of departmental servers.”

“The ‘product line’ supported by IRIX is extremely broad; the paragraph which you quote only describes the entry point into the Origin server product line.”

Número de bits: 64

“Digital UNIX continues to dominate the 64-bit arena, leaving HP-UX and IRIX to contest the second position, followed closely by AIX. Solaris and NT trail significantly behind. IRIX has transitioned its hardware line completely to 64-bit technology, but lags in the area of 64-bit standards conformance, without support for the predecessor of the 64-bit UNIX98 standard, UNIX95.” —D.H. Brown Associates

Kernel: Proprietary. “SGI has put a lot of work into IRIX; it isn’t just someone else’s kernel with some bundled software on top. It also predates MACH or any other open unix standard by a number of years.” — Walter Roberson

POSIX: compativel

Periféricos: “lots of high-end graphics equipment” —Kristian Elof Sørensen

Ficheiros de sistema suportáveis:

• preferred file system: XFS
• file systems can read/write/format: XFS, EFS
• file systems can read/write: HFS, FAT, NFS
• file systems read only and can write through optional software: ISO 9660

Outros sistemas emulados:

Motor de gráficos:“Varies across the broad product line, including possibly none at all for many configurations in the server product lines.”

Operador de interface(texto):

• UNIX shells

Operador de interface(gráfico):

• IRIX Interactive Desktop (formerly Indigo Magic Desktop)

“IRIX 6.4 earns a surprising lead [among commercial UNIXs] for reliability and scalability functions overall, having previously introduced many of the features that are only now being offered by high-profile commercial competitors. IRIX also scores very well for Internet/intranet features.” —D.H. Brown Associates

 

 

Site oficial

SGI: http://www.sgi.com/

http://techpubs.sgi.com/ (on-line documentation)

FAQs

(Frequently Asked Questions)

http://support.sgi.com/ (official SGI FAQs)

http://www-viz.tamu.edu/~sgi-faq/ (user contributed FAQs)