Patent ID: 7991860

Claim:
A system comprising: a. a plurality of SCSI nodes operable to perform a SCSI target function, each of the plurality of SCSI nodes comprising a memory, a processor and a host bus adaptor operable to connect the SCSI node with a Fibre Channel fabric, the host bus adaptor being assigned a world wide name and a network address; and b. a host operable to perform a SCSI initiator function, wherein at least one of the plurality of nodes or the host is operable to cause the world wide name assigned to a source host bus adaptor associated with one of the plurality of SCSI nodes to be relocated to a target host bus adaptor associated with another one of the plurality of SCSI nodes and wherein the at least one of the plurality of nodes or the host is further operable to cause the network address assigned to the source host bus adaptor to be relocated to the target host bus adaptor; wherein in relocating the world wide name, the system determines whether or not the network address can be relocated before relocating the network address by referring to a table stored in the plurality of SCSI nodes, wherein the network address is a MAC address and wherein a network connection used in relocating the world wide name and the network address is a MAC layer network connection, and wherein said table includes information of whether the MAC address subject to relocation is included in a consistency group.