Spectra T50e - Identifying Drives and Partitions in the Library; Identify the Drives in the Library

Chapter 5—Operating the Library Identifying Drives and Partitions in the Library
August 2017 User Guide—Spectra T50e Library
149
IDENTIFYING DRIVES AND PARTITIONS IN THE LIBRARY
Thefollowingsectionsdescribemethodsforidentifyingthepartitionsand
drivesinthelibrary,boththroughtheBlueScaleuserinterfaceandfromthe
hostsoftwareandSANmanagementtools.
Identify the Drives in the Library
Thelibraryassignsunique,location ‐basedBlueScaleidentifiersandserial
numberstoeachdrive inthelibrary.TheBlueScaleidentifiersappearonth e
DrivesandDriv eDetailsscreensaswellasinsystemmessages.Inaddition,
eachFibreChannelorSASdriveisassignedalocation‐bas edWorldWide
Name(WWN).ForFibreChanneldrives,theWWNcanbeusedtoidentify
thedriv esonthehostFibreChannelarbitratedlooporfabric.
BlueScale Drive Identifiers
Thefirmwareinthedrivesledthathouseseachdriveassignsanidentifier
tothedrivebasedonitslocationinthelibrary.Thisidentifierisshownin
theBlueScaleuserinterface.Becausetheidentifierislocation‐based,it
remainsconstantevenifthephysicaldriveisreplacedbyanewdrive.The
newdriveassumesthelocation‐basedidentifier,makingdrivereplacement
completelytransparenttothestoragemanagementsoftware.
Figure91showstherelationshipbetweenthedrivelocationsandthedrive
identifiersforbothhalf‐heightandfull‐heightdrives.
Figure 91 The relationship between the drive locations and the drive identifiers
in the BlueScale user interface.
Half-height drive
configuration
DRV1A
DRV1B
DRV2A
DRV2B
DRV2
DRV1
Full-height drive
configuration