- Sun Storage Virtual Tape Library VTL User Guide

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CHAPTER
2
UnderstandingVTLZoning
Zoningis thecrucialfirststepwhenintegrating astoragesystem, suchastheVTL
appliance,intoaFibreChannelstorageareanetwork(SAN).Whilespecificzoning
recommendationsmustvaryfromSANenvironmenttoSANenvironment,this
chapterdescribesthebasicrequirementsthatallsuccessfulVTLdeployments must 
address.
■ “Zoningforstandard‐availabilitysystems”onpage 1 5
■ “Zoningforhigh‐availabilitysystems”onpage 16.
Zoningforstandard‐availabilitysystems
ThebasiczoningrequirementforVTLsolutionsthatdonotimplementthehigh‐
availabilityfeature isthateachSANzonecontainonlyoneinitiatorandonetarget,
asshowninthefigurebelow.
Youzonestandard‐availabilityVTLsystems thesameway,regardlessofthetypeof
zoningyouuse.In
asoft‐zonedSAN,eachtargetandini tiator isdefinedbyalogical
WorldWidePortName(WWPN),whileinahard‐zonedSAN,target andinitiator
aredefinedbyphysicalportnumbers.But,ineithercase, youhaveoneclient
initiatorand oneVTLtargetperzone.
Zone A
T
I
Client
SAN
VTL server node
T
I