DellPowerVault™TL4000/TL2000FailoverGuide
13|Page 12/31/09 version 2.0
Failoverconfiguration
(onehostwiththreedualportHBAs,andthreeSASdrives)
MainPath
Failover Path
Figure9:ReferenceConfiguration9
ImportantNote:Thisconfigurationcanbeextendeduptofourdrivesprovidedthehostsystemcan
supportfourdualSAsHBAs.
Heterogeneousvalidatedconfigurations
Heterogonousconfigurationshavesomelimitations,iftheconfigurationcontainsLT04andLT05drives,
theLibrarymustcontainonlyLT04mediaforproperoperations.
ImportantNote:Heterogeneousconfig urationscontainingLT03drivesarenotsupported
FailoverReferenceConfiguration10:
Onehost,oneFibreChannelswitchandonePowerVault™libraryconfiguredwithoneLT04
FibreChannelandoneLT05FibreChanneldrive
Inthisconfiguration,failoveroccursifoneofthedrivesinthelibraryfails(hardwarefailureordriveis
disconnectedfromtheFibreChannelswitch).Thephysicalconnectionofthisco nfigurationisshownin
figure10
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