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1  ATTO Celerity HBA Features & Overview
The ATTO Celerity Fibre Channel family of storage products provides connectivity, intelligence and scalability.
Celerity FC host adapters simplify advanced storage 
networking needs such as switching, backup and data 
management. Specifically designed to enhance the 
functionality of third party fabric hardware and 
software, Celerity FC products are the industry-
leading platform for storage connectivity.
Fibre Channel is a serial communications technology 
designed to transfer large amounts of data among a 
variety of hardware systems over long distances. It is 
a key technology for applications that require shared, 
high bandwidth access to storage.
Fibre Channel provides a logical, point-to-point, serial 
channel for the transfer of data between a buffer at a 
source device and a buffer at a destination device. It 
moves buffer contents from one port to another, 
without regard to the format or meaning of the data so 
different upper level protocols are able to run over 
Fibre Channel hardware.
The Fibre Channel architecture is structured as a 
hierarchical set of protocol layers. Defined within these 
layers are rules for signal interfaces, serial encoding 
and decoding, error control, frame format and 
communications protocols. 
Getting started
In general, to install the ATTO Celerity FC host 
adapter, you must:
1
Ensure you have the equipment and software 
you need for the installation:
• Celerity 
FC 
adapter
•  ATTO Celerity CD including drivers, user 
manuals and utilities (Installation CD)
•  A computer with an available expansion slot
•  Storage, cables and connectors
2
Install drivers from the Installation CD for your 
operating system. Refer to 
3
Install the configuration software, the ATTO 
Configuration Tool, found on the Installation 
CD. 
4
Install the Celerity adapter. Refer to 
Hardware 
Installation
 on page 18.
5
Attach storage. 
6
If required, configure your Celerity adapter 
using the ATTO Configuration Tool.
Note
Default settings are appropriate for most 
systems but you may change settings using 
the ATTO Configuration Tool.