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arbitrated loop

   Also found in: Wikipedia 0.03 sec.

A ring topology used in Fibre Channel. Up to 127 devices may be attached in the loop, but only two can communicate at the same time, reflecting the channel nature of Fibre Channel technology. To communicate with a device several hops down the ring, each device repeats the data to its adjacent node. See Fibre Channel.

Arbitrated Loop
This ring topology is widely used and can connect up to 127 nodes without using a switch. All devices share the bandwidth, and only two can communicate with each other at the same time, with each node repeating the data to its adjacent node. TX means transmit, and RX means receive.
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NYSE:A) has announced the results of a successful 4 Gb/s Fibre Channel Arbitrated Loop (FCAL) interoperability test.
Hitachi and Agilent Technologies establish new Fibre channel ... by EDP Weekly's IT Monitor
Fibre Channel Arbitrated Loop (FCAL) architecture allows for up to 126 devices per loop, but throughput drops as devices are added because each node represents a latency factor against total loop performance.
The SAN Era Takes Shape by Moore, Fred / Computer Technology Review
This SBOD (switched bunch of disks) architecture eliminates bus contention related issues associated with Fibre Channel arbitrated loop and therefore ensures the maximum possible performance, reliability and availability in a storage system.
Winchester Systems Expands Its FlashDisk(R) OpenSAN Product Line; ... by Business Wire
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