HP StorageWorks MSA 2/8 HP StorageWorks QuickLoop Fabric Assist V3.1.x User Gu - Page 22

Using QuickLoop QuickLoop Initialization QuickLoop initialization includes two passes: ■ Pass 1 Sequential looplet initialization-Allows each device in a looplet to obtain a unique AL_PA. ■ Pass 2 Full QuickLoop initialization-Brings QuickLoop up to operation. If Advanced Zoning is in use, the looplets that are initialized depend upon the zoning configuration. Refer to the HP StorageWorks Zoning Version 3.1.x/4.1.x User Guide. Pass 1: Sequential Looplet Initialization This pass allows each device in the QuickLoop to obtain a unique AL_PA in a single AL_PA bit-map. Only those looplets from which LIPs were received are initialized, using the loop initialization procedure described in the FC-AL standard. The AL_PAs of devices in looplets from which no LIPs are received are preserved during initialization. Pass 2: Full Initialization This pass sets up the QuickLoop as a single logical PLDA. This is accomplished by making all assigned AL_PAs addressable by any device in the QuickLoop, regardless of whether the destination device and source device are in the same physical looplet. If the destination and source devices are not in the same physical looplet, the hidden FL_Port in the source device looplet acts on behalf of the destination device, and the fabric provides the transport service. 22 QuickLoop Fabric Assist Version 3.1.x User Guide