Chapter 2 — Architecture Overview Drive and Media Frames
November 2016 User Guide—Spectra T950 Library
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Expired Cleaning Cartridges Whenanexpiredcleaningcartridgeisloaded
intoadrive,itisimmediatelyejectedwithoutattemptingthecleaning.The
libraryflagsthecleaningtapeasexpiredandgeneratessystemmessagesto
notifyyouoftheexpiredcleaningtapeandthefaileddrivecleaning.It
marksthecleaningcartridgeasexpiredinitsinventoryanddoesnot
attempttouseitforsubsequentcleanings.Thesecartridgeshavean“x”
nexttotheslotnumberwhenviewedontheInventoryscreen.
Ifthecleaningpartitioncontainsanother,goodcleaningcartridge,a
cleaningthatfailedbecausethecleaningcartridgeisexpired,is
reattemptedthenexttimethehostunloadsadatacartridgefromthedrive.
MLM Tracking of Cleaning Cartridges WhenyouenabletheBlueScale
MediaLifecycleManagement(MLM)featureanduseMLM‐enabled
cleaningcartridges,thelibrarystoresusageinformation,inclu ding the
numberofcleansremainingandthecartridgehealth(good,nearexpiration
orexpired),intheMLMdatabase.ThisinformationisretainedintheMLM
databaseev en whenacleaningcartridgeisexportedfromthelibrary.
Whenacartridgeisnearingtheendofitsusefullife,thelibrarynotifiesyou
sothatyoucanreplacethecartridge.Thisearlynotifica tionhelpspre vent
failedcleaningsresultingfromusinganexpiredcleaningcartridge.
Thelibrarydoesnotstoreanyinformationaboutnon‐MLMcleaning
cartridgesintheMLMdatabase.Howeverthelibrarydoesmarkan
expiredcleaningcartridgeanddoesnotattempttouseitagainaslongasit
remainsinthelibrary.Ifanexpirednon‐MLMcartridgeisexportedand
thenreimportedintothelibrary,itisidentifiedasexpiredthenexttimeitis
loadedintoadrive.
Note: TS11x0technologycleaningtapesarealwaystreatedasMLM‐
enabledbytheBlueScalesoftware.
SeeChapter9–ConfiguringandUsingMediaLifecycleManagement,
beginningonpage276fordetailedinformationaboutMLM.
DRIVE AND MEDIA FRAMES
TheT950library’smodulardesignmakesitpossibletoincreasemedia
capacityorthenumberofdrivesinthelibrarytomeetstorageand
performanceneedsastheyevolve.Expansionframescanbeaddedtothe
basicsingle‐framelibraryforamaximumofeightframes.
Asviewedfromthefrontofthelibrary,themainframemustbepositioned
astheleft‐mostframeortheframeimmediatelytotherightofthebulk
TAP .Uptofourdriveexpansionframescanbelocatedimmediatelytothe
rightofthemainframe.Mediaframescanbe
locatedtotherightofthe
mainframeandanydriveframes.