Quickloop Initialization; Pass 1: Sequential Looplet Initialization; Pass 2: Full Initialization - HP StorageWorks MSA 2/8 - SAN Switch User Manual

Using QuickLoop

QuickLoop Initialization

QuickLoop initialization includes two passes:
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
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.
QuickLoop Fabric Assist Version 3.1.x User Guide