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Chapter 1
1.1 Overview
The RamSan-120 series solid-state disk uses SDRAM (memory) as its
primary storage. This technology enables practically instantaneous data
access, which results in dramatic application performance increases.
Texas Memory Systems (TMS) designed the RamSan to be highly available
and fault tolerant. The system has higher availability than RAID or JBOD
systems because the primary storage media is SDRAM, which does not
require moving parts. Additionally, SDRAM has a very high mean time
between failures (as high as several hundred years) according to some
studies. The RamSan-120's internal disk drive and battery provide a fully
non-volatile solution.
The RamSan complements existing disk drives, JBOD, or RAID, in
performance sensitive applications. Servers perceive the RamSan as
another attached disk drive. For some applications, the RamSan is the
only storage system required. For applications that store terabytes of
data, storage administrators add the RamSan to systems that include
RAID or JBOD.
Connect the RamSan via Fibre Channel to host servers, NAS filers, or
storage network switches and hubs. If you have specific compatibility
questions, please contact Texas Memory Systems.
Use the RamSan in a variety of applications. If hard disk drives slow down
your application, there is a good chance that the RamSan can speed it up.
1.2 System Components
The system components for the RamSan-120 include:
•
Main system memory - 8 Gigabytes
•
Dual Fibre Channel ports
•
Ethernet monitoring port
•
Serial monitoring port
•
Front panel display for monitoring and configuration
•
SNMP based monitoring
•
Java-based Web monitoring
•
Internal backup hard drive
•
Internal battery
1.3 Power
The RamSan includes an auto-ranging power supply (it accepts either 110
or 220 VAC power).
RamSan-120 User's Manual
– Introduction
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