Pci

Term	Definition
N_port	a port attached to a node used with point to point or fabric configurations
NL_ port	a port attached to a node in Fibre Channel arbitrated loop or fabric loop configuration
originator	an initiating device; a component which originates a command
parity checking	a method which verifies the accuracy of data transmitted over the SCSI bus by adding one bit in
	the transfer to make the sum of all the bits either odd or even (for odd or even parity); an error
	message occurs if the sum is not correct
PCI	Peripheral Component Interconnect. Allows peripherals to be connected directly to computer
	memory, bypassing the slower ISA and EISA busses
point-to-point	a topology where two ports communicate
port	an access point in a device: see N_port, NL_port, etc.
port address	also port number; the address, assigned by the PCI bus, through which commands are sent to a
	host adapter board
port number	see port address
receiver	the ultimate destination of data transmission; a terminal device
SAS	Serial Attached SCSI: a serial SCSI bus technology and point to point architecture for connecting
	host bus adapters to storage devices
SATA	Serial AT Attachment: a serial ATA bus technology and point to point architecture for connecting
	host bus adapters to storage devices
scatter/gather	a device driver feature which allows the host adapter to modify a transfer data pointer so that a
	single host adapter can access many segments of memory, minimizing interrupts and transfer
	overhead
SCSI	Small Computer Systems Interface: a processor-independent standard for system-level interface
	between a computer and intelligent devices including hard disks, floppy disks, CD-ROM, printers,
	scanners, etc.
single-mode fiber	an optical fiber with a small core which supports one wavelength (ray of light); the core radius is
	nearly equal to the wavelength of the source
SNMP	Simple Network Management Protocol: a standard for monitoring network-attached devices
topology	logical layout of the parts of a computer system or network and their interconnections
transceiver	a transmitter/receiver module
transfer rate	the rate at which bytes or bits are transferred, as in megabytes or gigabits per second

ii ATTO Technology Inc. Celerity FC Host Adapters Installation and Operation Manual

FC-81EN, FC-82EN, FC-84EN specifications

ATTO Technology's FC-82EN is a 16Gb Fibre Channel HBA (Host Bus Adapter) that provides high-performance connectivity for storage area networks. Designed for use with both Windows and Linux operating systems, the FC-82EN is ideal for enterprises seeking to optimize data transfer rates and reduce latency for mission-critical applications.

One of the key features of the FC-82EN is its support for 16Gb Fibre Channel, which doubles the bandwidth from previous generations, allowing for faster data transfers. This is particularly beneficial in environments with heavy I/O workloads, such as virtualized data centers and large databases. With its backward compatibility, users can seamlessly integrate the FC-82EN into existing Fibre Channel networks that operate at 4Gb and 8Gb speeds, ensuring flexibility and protecting existing investments.

The FC-82EN employs advanced technologies to enhance performance and reliability. It incorporates ATTO's proprietary Advanced Data Streaming (ADS) technology, which optimizes data flow between the host system and storage devices. By minimizing processing overhead and maximizing throughput, ADS ensures that data-intensive applications run smoothly. Additionally, the HBA features a built-in intelligent caching mechanism to help manage data transfer and reduce bottlenecks.

Another significant characteristic of the FC-82EN is its support for multipathing, which enhances availability and load balancing across multiple paths in a storage network. This feature is crucial in distributed systems where uptime is critical, as it helps to prevent single points of failure and effectively utilizes available resources.

For manageability and ease of use, the FC-82EN includes ATTO's configurable driver and management software, providing users with a comprehensive suite of tools for monitoring performance, configuring settings, and troubleshooting issues. The adapter also supports end-to-end error detection and recovery protocols, ensuring data integrity throughout the transfer process.

In summary, the ATTO Technology FC-82EN is a robust and versatile Fibre Channel HBA that meets the demanding requirements of modern data environments. With its high-speed capabilities, advanced technologies, and strong management features, the FC-82EN is an excellent choice for organizations looking to enhance their storage network performance and reliability.

Term

SAS

SATA

scatter/gather

SCSI

single-mode fiber

SNMP

FC-81EN, FC-82EN, FC-84EN specifications