Method and apparatus for address mapping

An address database for mapping a Fibre Channel address to a Small Computer System Interface (SCSI) address, comprising:

• a port target identifier related to a data port;
• a logical unit identifier related to a device, wherein the device is coupled to the data port;
• an Arbitrated Loop Physical Address (AL_PA) related to the device;
• and
• a plurality of device entries, the port target identifier, the logical unit identifier, and the AL_PA being part of a first device entry, and each device entry further includes a device type information related to the device,
• wherein the address database facilitates translation of operating system independent commands received by a Fibre Channel wrapper module into Fibre Channel commands usable by a Fibre Channel layer module that is in communication with a Fibre Channel controller.

A computer program that maps a Fibre Channel address to a Small Computer System Interface (SCSI) address, comprising:

• a code segment that constructs an address database having a device entry for a detected device during Fibre Channel initialization, wherein the device entry includes a port target identifier for a detected data port and a logical unit identifier for the detected device, and wherein the device entry associates an Arbitrated Loop Physical Address (AL_PA) to the port target identifier and the logical unit identifier;
• a code segment that receives an operating system independent command from an Operating System Module (OSM) that is designed to execute on a particular computer operating system;
• and
• a code segment that translates the operating system independent command into a Fibre Channel command utilizing the address database, the Fibre Channel command being usable by a Fibre Channel layer module.