Chapter 4: Subsystem Connection and Operation
FC Host Connection Prerequisites
4-1
Chapter 4
Subsystem Connection and Operation
This chapter outlines some basic configuration rules you should use when
configuring a storage system and introduces basic information about Fibre
cables and Fibre topologies for the GALAXY Raid. You can set the system
up using these topologies or use them as a guide for developing your own
unique topologies. A complete description of the power on and power off
procedures is also given in this chapter.
4.1 FC Host Connection Prerequisites
4.1.1
Choosing the Fibre Cables
The Fibre Channel standard allows for both copper and optical connections.
Copper cable is cheaper but limited to lengths of less than 30m. Optical
cable can be used over longer distances and have been shown to be more
reliable. Due to the extremely demand of high data transfer rate, optical
cables are preferred for 4Gb/s Fibre connectivity. Optical cables are also
less susceptible to EMI.
Fibre cables are expansive components that need to be purchased separately.
You may order Fibre cables that came with different lengths from Rorke
Data Sales. Those cables are being proved to be compatible with your
GALAXY subsystems.
WARNING!
All Fibre cables are sensitive and must be handled with care. To prevent
interference within a rack system, the cable routing path must be
carefully planned and the cables must not be bent.
