Appendix C—Specifications Interface Specifications
August 2017 User Guide—Spectra T50e Library
496
INTERFACE SPECIFICATIONS
Thissectionprovidesinformationabouttheinterfacesusedtoconnectthe
libraryandtapedrivestothehostsystems.Italsoprovidesinformation
abouttheEthernetinterfaceusedtoaccessthelibrary’sBlueScaleweb
interface.
Interface Connectors
ThetapedriveshaveeitheraFibreChannel,SAS,orUltra320LVDSCSI
businterface.Oneofthedrivesinthepartition(theexportingdrive)
providestheinterfacefromthehosttotherobotics.Themotioncommands
fromthehostareroutedtotheroboticsthroughLUN1oftheexporting
drive.Thetapedrivereportstheroboticsas“SPECTRAPYTHON”on
LUN1.LUN0isthetapedriveitself.
Component Physical Interface
Drive,Fibre
Channel
TheFibreChanneltapedrivessupporttheFibreChannelProtocol(FCP).
Eachfull‐heightFibreChanneldrivehastwoFibreChanneldualport
multimodeopticalLCsockets,eachwithamulti‐modeSFPinstalled.
a
Eachhalf‐heightFibreChanneldrivehasasinglemultimodeopticalLC
socketwithamulti‐modeSFPinstalled.
Note: ForinformationabouthowLTOUltriumtapedrivessupportFibre
Channelcommunications,refertothetapedrivedocumentation,availablefrom
IBMat
www.storage.ibm.com/tape/lto/oem/index.html.
Drive,SAS EachSASdrivehastwodual‐port, 6Gb/secondconnectorsthatconformtothe
DeviceFree(Plug)connectorformoftheSFF‐8088standard“UnshieldedDual
PortSerialAttachmentConnector”asdefinedbytheSFFstandardsbody.
Drive,SCSI TheSCSIdrivessupporttheSCSIprotocol.
Eachfull‐heightLTO‐3drivehastwoUltra‐3SCSI“LVD”68‐pinMicroD
femaleconnector.
Eachhalf‐heightLTO‐4drivehastwoVHDCISCSIconnectors.
Note: OnewideUltra320SCSIActiveSCSIterminatorisprovidedwitheach
SCSItapedrive.
LCM TheEthernetportontheLCMisapin‐through‐holeRJ‐45shieldedconnector.
a. Only one port at a time can be used to connect the drive to a Fibre Channel network. If desired, the two ports can be used to create a
failover configuration.