Optimizing the speed of an FC-AL switch domain in a data storage network

摘要

In a fibre channel, arbitrated loop (FC-AL) network environment, an operating speed of devices within a switch domain within the network is optimized. The FC-AL switch domain is isolated from an attached storage controller, and a first signal is transmitted to each of a plurality of storage devices within the domain. The first signal comprises a request that each storage device transmit inquiry data to a control and management node (CMN) within the domain. In response to receipt of the inquiry data from each storage device, the speeds at which each storage device is operable are identified and an operational speed is then established for the domain. The established speed may be the fastest speed at which all devices can operate. Alternatively, one or more slower devices may be bypassed and the established speed may be the fastest speed at which all remaining devices can operate.