Prism: Difference between revisions
Created page with "The SGI Prism, is an Itanium based workstation sold by Silicon Graphics from 2005 to 2007. This system uses Itanium 2-based processors and while visually similar to the Tezro, and sharing some ancillary parts, it is a clean break in design and runs RHEL and SLES Linux. The Prism implements the IP57 processor, but follows the IP41 architecture from the earlier Altix 3000 systems. === Features === === CPU === The Prism can take single or dual CPU configurations th..." |
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Latest revision as of 22:28, 16 February 2025
The SGI Prism, is an Itanium based workstation sold by Silicon Graphics from 2005 to 2007. This system uses Itanium 2-based processors and while visually similar to the Tezro, and sharing some ancillary parts, it is a clean break in design and runs RHEL and SLES Linux. The Prism implements the IP57 processor, but follows the IP41 architecture from the earlier Altix 3000 systems.
Features
CPU
The Prism can take single or dual CPU configurations the same as the Altix. The CPUs are attached to the node board, thus a configuration upgrade requires removal of the entire node board.
| CPU Configurations | |
| CPU Cache | Speeds (GHz) |
| 1.5MB | 1.0, 1.4 |
| 3MB | 1.3, 1.4, 1.6 |
| 4MB | 1.4, 1.5 |
| 6MB | 1.5, 1.6 |
| 9MB | 1.6 |
Memory
Like other first-generation Altix systems, the Prism uses registered DDR DIMMs with ECC, rated at 266MHz or faster, which are commonly referred to as PC2100, PC2700, etc. Memory is organized in three banks of four DIMMs each, or twelve slots total, providing up to 24GB of RAM total per base module. DIMMs of 512MB, 1GB, and 2GB are officially supported; it is unclear as of this writing if 4GB parts will work.
I/O
The IO9 controller supports Ultra160 SCSI devices and includes an externally-accessible VHDCI port, while the IO10 controller supports SATA devices and includes a high density serial connector. Both controllers include a separate IDE interface to support optical drives.
Either IO controller provides one 1000baseT Ethernet interface. Three PCI-X slots can provide additional cards, such as network cards, SCSI cards, Firewire, extra audio and more. The BaseIO card must be installed in the bottom slot.
Two USB ports and PS/2 are provided. USB Mass storage is not supported for the SGI PROM and by IRIX.
Storage
The Prism has a front bay for two 3.5" drives. It uses proprietary sleds for this purpose.
The Origin/Onyx 350, Prism, Altix 350, and Altix 450/4x00 all use the same drive carriers. These are standard parts used by a number of manufacturers, notably Intel's SC5200, SRSH4, SR1300/2300, and SR1400/2400 and Sun's v60x and v65x servers.
The units carry "Assy A65278-00x" on a sticker, where the "-00x" may end in any digit though "-005" seems common. This assembly number can be useful when searching for parts in the Internet. According to SR1300/SR2300 support documents at intel.com, the Intel accessory part number for the drive carrier is FXX2DRVCARBLK, UPC code "7 35858 14621 0" and "MM #" 835853. However note that there is some indication that Intel may recycle these accessory part numbers in the FXX- form between different models.
Hardware Problems
The main issue affecting these units is invalid serial numbers, which can be fixed using another brick, an L2 controller, or an L2 emulator called an L3 controller.
Operating System Support
The system can run Microsoft Windows up to Server 2008 R2 (Itanium Edition) and GNU/Linux RHEL and SLES up to versions 5 and 9 respectively.
