Spectra T50e - Prepare the Hosts

Chapter 2—Installing the Library Preparing for the Installation
August 2017 User Guide—Spectra T50e Library
40
Prepare the Hosts
Usethefollowingguidelinestopreparethehostcomputer(s)thatconnect
tothelibrary.
Note: Compatibilityinformationisavailable atwww.spectralogic.com/
compatibility.
Requirement Description
Connections to the
library and drives
InstallasuitablyratedFibreChannelswitchand/orahostbusadapter(HBA)in
eachhostcomputer.
 Fibre Channel (FC)
 LTO‐7FibreChanneldrivesattempttoconnectat8Gb/s,butauto‐
negotiatedownto4
Gb/s,or2Gb/s,dependingonhostrequirements.
 LTO‐5andLTO‐6FibreChanneldrivesattempttoconnectat8Gb/s,but
auto‐negotiatedownto4
Gb/s,2Gb/s,or1Gb/s,dependingonhost
requirements.
 LTO‐4FibreChanneldrivesattempttoconnectat4Gb/s,butauto‐
negotiatedownto2
Gb/sor1Gb/s,dependingonhostrequirements.
 SAS — LTO‐5,LTO‐6,andLTO‐7SASdrivesattempttoconnectat6Gb/s,but
auto‐negotiatedownto3
Gb/sdependingonhostrequirements.
 SCSI—LTOSCSIdrivessupportconnectingtoeitheranUltra160oran
Ultra320LVDSCSIHBA.Foroptimumperformance,useanUltra320LVD
SCSIHBA.DonotconnectanydiskdevicestothesameHBAportusedfor
thelibrary;diskandtapedrivesmustbeonadifferentHBAordifferent
ports
onthesameHBA.
Important: Daisy chaining LTO-4 SCSI drives is not supported (see Connection
Guidelines on page 58 for information about daisy-chaining LTO-3 SCSI drives).
Host SCSIdrivesonly.WhenconnectingSCSIdrivestothehost,SpectraLogic
recommendsthatyoupoweroffthehostcomputer(s)untilthelibraryis
installedandtheinitialconfigurationiscomplete.
LUN support MakesurethatmultipleLUNsupportisenabledonthehostoperatingsystem
andHBAs.Onedriveineachpartitionisusedtoprovidethecontrolpathtothe
library’srobotics.Themotioncommandsfromthehostareroutedtothe
roboticsthroughLUN
1ofoneofthedrivesinthepartition.Thedrivereports
theroboticsas“SPECTRAPYTHON”onLUN
1.LUN0isthedriveitself.
Notes:
 DonotuseanLVDSCSIHBAthatdoesnotsupportmultipleLUNs.
 DonotuseaSCSIRAIDcontrollerunlesstheRAIDsupportisdisabled.
Drivers and
software
Makesurethatanynecessarydevicedriversandthestoragemanagement
softwarearecompatiblewiththelibraryandthedrive(s).See
UpdatingDrive
DeviceDriversonpage455forinformationaboutdevicedrivers.
Note: Thestoragemanagementsoftwarecanbeinstalledonthehostcomputer
beforeorafterthelibraryisinstalled.However,ifthesoftwareisinstalledfirst,
youmayneedtoreconfigureitforusewiththelibraryafterlibraryinstallation
iscomplete.