Overview, Chapter 1 - overview -1, Chapter 1 - overview – Texas Memory Systems RAM-SAN 520 User Manual

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Chapter 1 - Overview


The RAM-SAN

TM

is a high-performance, multi-ported, solid-state disk. Memory capacity ranges from 16 gigabytes (GB)

through 128 GB in 16 GB increments

1

. Memory is organized internally in 128-bit wide words and accessed via four parallel

memory buses that can each sustain an aggregate bandwidth of up to 800 megabytes per second, giving a system bandwidth
of up to 3.2 GB per second.

The RAM-SAN features up to fifteen Fibre Channel I/O ports, each of which can sustain up to 200 megabytes per second in
full duplex mode. Multiple devices can access memory simultaneously at full speed, subject to the aggregate memory bus
bandwidth limit. The RAM-SAN also features a management port that is used for system diagnostics, configuration, and
monitoring.

The RAM-SAN 520 model also includes a hot swappable 2+1 redundant power configuration. Users should exercise caution
when changing out the power supplies.

1

One gigabyte is defined as 1,073,741,824 bytes.

RAM-SAN User’s Guide

Texas Memory Systems, Inc. (February 7, 2003)

1-1

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