PAC STORAGE PS 4000 Gen2 Series, Руководство по оборудованию

Страница: 47 / 108

PS 4000 Gen2 Series Hardware Manual 2-21
Fiber-Host Topologies
The fiber-host standard supports three topologies:
•
Point-to-Point Topology
A direct connection between two fiber-channel devices. The simplest among the three topologies.
•
FC-AL (Fiber Channel Arbitrated Loop)
The fiber-channel devices are all connected to a loop. Each device is assigned to an AL_PA
(Arbitrated Loop Physical Address). FC-AL supports 124 devices in a single loop. This is the most
commonly-used topology among the three.
•
Fabric Switch
This topology can support up to 224 fiber-channel devices and allows multiple devices to
communicate simultaneously. A fiber switch is required to implement this topology.
IMPORTANT! If different servers need to access your logical drive, file locking, FC switch zoning, port
binding, and multipath access control configurations are necessary.
Fiber Cabling
Before you set up your fiber cabling connection, you must:
a. Create a configuration plan. In addition to cabling topologies and the list of networking components,
you must also include the firmware and software maintenance details.
b. Confirm that your fiber-channel
cable’s loop measures 6 inches or longer.
c. Ensure proper airflow and keep the cables away from ventilation outlets.
To connect devices using fiber cable:
1. Take out the SFP transceiver module from the static protective package.
2. Remove the dust cap from the SFP transceiver module.
SFP transceiver module
Dust cap