HP StorageWorks 8/80 HP StorageWorks Fabric OS 6.2 administrator guide (5697-0 - Page 372

Edge fabric 2 Edge fabric 1 E_Port VE_Port IP cloud Edge fabric 3 E_Port IFL IFL IFL FC router VEX_Port EX_Port (2) = LSAN Backbone fabric Figure 60 A metaSAN with edge-to-edge and backbone fabrics and LSAN zones • Proxy device A proxy device is a virtual device imported into a fabric by a Fibre Channel router, to represent a real device on another fabric. It has a name server entry and is assigned a valid port ID. When a proxy device is created in a fabric, the real Fibre Channel device is considered to be imported into this fabric. The presence of a proxy device is required for interfabric device communication. See "Proxy devices" on page 371 for additional information about proxy devices. • Proxy PID A proxy PID is the port ID (PID) of the proxy device. The proxy device appears to the fabric as a real Fibre Channel device, has a name server entry, and is assigned a valid port ID. The port ID is relevant only on the fabric in which the proxy device has been created. • Fabric ID (FID) Every EX_Port and VEX_Port uses the fabric ID (FID) to identify the fabric at the opposite end of the interfabric link. The FID for every edge fabric must be unique from the perspective of each backbone fabric. • If EX_Ports and VEX_Ports are attached to the same edge fabric, they must be configured with the same FID. • If EX_Ports and VEX_Ports are attached to different edge fabrics, they must be configured with a unique FID for each edge fabric. If two different backbone fabrics are connected to the same edge fabric, the backbone FIDs must be different, but the edge FIDs must be the same. If you configure the same FID for two backbone fabrics that are connected to the same edge fabric, a RASLog message displays a warning about FID overlap. NOTE: Backbone fabrics that share connections to the same edge fabrics must have unique backbone FIDs. • MetaSAN A metaSAN is the collection of all SANs interconnected with Fibre Channel routers. 370 Using the FC-FC routing service