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I/O Boards - VME
Bus
FT-SAN-PMC Gigabit SAN Interconnect
The FT-SAN-PMC is a switch module that provides high speed connections
through a combination of PMC and VME interfaces. This board can
be used to build gigabit-per-second System Area Networks (SAN),
allowing several computers to work as a system cluster. Individual
computers containing the LAN/PMC interface can be linked using the
VME LAN Switch Module.
SAN/PCI interfaces in the PMC form factor for GB/sec Local
Area Networks
Many of the newest 6U VME Single-Board Computers (SBC's)
accept PCI devices in a standard form factor called "PMC"
— the PCI Mezzanine Card (IEEE P1386.1). These PMC versions
of the Myrinet/PCI interface are functionally identical to the M2M-PCI32
PCI short-card version except that they adhere to the (single-width)
PMC form factor. The small, very flexible Myrinet-SAN cables that
plug into Myrinet-SAN ports are ideal for in-chassis connections
on the front-panel side of VME systems. 6U VME SBC's can be clustered
using a 6U-VME form-factor Myrinet-SAN switch.
Block Diagram
| PCI-bus Interface |
32-bit, 33MHz,
supports all burst modes and write-invalidate, master or slave.
Raw DMA performance @33MHz with large blocks is approximately
120 MB/sec peer mode, or to/from system memory on platforms
with good PCI implementations. |
| Interface memory |
M2M-PMC32: 512KB,
128Kx4B. M2M-PMC32A: 256KB, 64Kx4B. This memory operates at
double the PCI clock rate. At a 33MHz PCI clock rate, 264 MB/sec
of memory bandwidth is available to support the Myrinet channels,
DMA, and processor. |
| Interface processor |
The Myricom LANai
chip's RISC operating at 33MHz, the PCI clock rate. |
| Myrinet-SAN port |
1.28+1.28 GB/s
on the A link; B link unused. |
| Physical characteristics |
Single-width PMC
board, ~4 Watts. |
| Supported software |
Linux and Solaris
2.5 for Pentium PCs, Myrinet control program, Myrinet API library
and development tools. The device drivers and Myrinet Control
Program are distributed in source form, and have been adapted
by customers to other platforms and operating systems. |
Typical SAN/LAN Configuration
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