System and method for providing a proxy FARP for legacy storage

Details System and method for providing a proxy FARP for legacy storage System and method for providing a proxy FARP for legacy storage

1998-09-23

2000-11-21

Olms, Douglas W.

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

370404, 370452, 3952006, H04J 316

Patent

active

061513318

ABSTRACT:
In a fiber channel network, a method and system for discovering the location of a storage device that does not support FARP using a FARP broadcast using a storage router as a proxy. The storage device can be connected to the storage router via an arbitrated loop or a local SCSI interface. The storage router can perform a discovery to determine the node names of each storage device connected to it and save the discovered storage device node names to a look-up table. The storage router then sends a FARP request to each storage device on the look-up table. For each storage device that responds, flagging the corresponding node name for that storage device in the look-up table as FARP compatible, and for each storage device that does not respond, flagging the corresponding node name as not being FARP compatible. When a FARP broadcast directed to any of the storage devices is received at the storage router, the router determines if the storage device is FARP compatible by accessing the look-up table and if the storage device is not FARP compatible, sends a reply to the FARP broadcast that contains the physical address of the storage device.

REFERENCES:
patent: 5581558 (1996-12-01), Horney, II et al.
patent: 5870589 (1999-02-01), Alexander, Jr. et al.
patent: 5944798 (1999-08-01), McCarty et al.

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