Spectra T950 - Page 49

Chapter 1 — Library Overview Library Features
November 2016 User Guide—Spectra T950 Library
49
RIM TheRIMhastwodual‐channelFibreChannelports(Port AandPortB),which
canbeusedtoprovideconnectionstotwoseparateFibreChannelarbitrated
loopsorfabrics.Thetwoportscanalsobeusedtoprovideredundantcontrol
pathstotheroboticsfromasingleFibreChannelarbitrated
looporfabric.
ControllerfailovercanbeconfiguredusingasecondRIMoranF‐QIP.
Important: Only direct-attached Fibre Channel drives can be used when a RIM
is used to provide the robotic control path. If you have SCSI drives, you must
use an F-QIP or E-QIP to provide the robotic control path as well as connectivity
for the drives.
Notes:
 TheEthernetportontheRIMisreservedforfutureuse.
 TheDiagportontheRIMisfortroubleshootingonly.
F-QIP TheF‐QIPhastwointegrateddual‐channelports(PortAandPortB),which can
beusedtoprovideconnectionstotwoseparateFibreChannelarbitratedloops
orfabrics.Theycanalsobeusedtoprovideredundantcontrolpathstothe
roboticsfromasingleFibreChannelarbitratedloopor
fabric.Inadditiontothe
roboticsconnectivity,thetwoportseachprovideany‐to‐anyconnectivityforup
tofourdrivesintheDBAwherethecontrollerisinstalled.
ControllerfailovercanbeconfiguredusingasecondF‐QIPoraRIM.
AnadditionalfeatureoftheF‐QIPisthe
abilitytoencryptdatabeforeitis
writtentotape.ThiscapabilityisusefuliftheSCSIdrivesinstalledinthe
librarycannotperformencryptionthemselves.Encryptionkeymanagementis
providedthroughthelibrary’sBlueScaleuserinterface(seetheSpectraTape
LibrariesEncryptionUserGuide).
OnesetofactivityLEDsindicates
SCSIbusactivity(datatransfertoorfromthe
attacheddrives).TheothersetofactivityLEDsindicateswhetherthedata
passingtotheattacheddrivesisbeingencryptedordecryptedbytheF‐QIP.
Notes:
 TheEthernetportontheF‐QIPisnotused.
 TheDiagportontheF‐QIPisfortroubleshootingonly.
 TheRS‐232portontheF‐QIPisfortroubleshootingonly.
 TheencryptionperformedbytheF‐QIPisnotcompatiblewiththedrive‐
basedencryptionavailablewithLTO‐4andlatergenerationdrives.Data
encryptedbytheF‐QIPcannotbedecryptedbyanencryption‐enabledLTO‐4
orlaterdriveandviceversa.
Tape Drive (LTO-5
and later
generation)
Thecommandstocontrolthemotionoftheroboticswithinthepartitionare
sentfromthehosttotheexportingdrive’slogicalunitnumber1(LUN1).The
motioncontrolcommandsarethenroutedtotheroboticsusingtheexporting
drive’sAutomation/DriveInterface(ADI).
Controller Description