Spectra T950 - CLEANING A DRIVE

Chapter 15 — Maintaining the Drives Cleaning a Drive
November 2016 User Guide—Spectra T950 Library
461
CLEANING A DRIVE
Overview Wheneveratapeisloadedorunloaded,theread/writeheads
arephysicallycleanedbyabrushlocatedwithinthedrive.However,after
readingandwritingalargeamountofdata(theexactamountvariesby
drivetypeandgeneration)orifreadorwriteerrorsoccur,thedrive
requeststobecleanedwithacleaningcartridge.Therequestismadeby
sendingaTapeAlertmessagetothehost,anddisplayingaContheSCD
foranLTOdriveorCLEAN* ontheMCDforaTS11x0technologydrive.
Thenotificationisalsopostedtothelibrary’sDriveDetailsscreen
(Figure298onpage463)andtheDLMdrivehealthiconforthedrive
changestoyellow(seeUsingtheDriveHealthIconsonpage324for
additionalinformation).
Usingdriveswithdirtyheadscanreducedriveperformance,decrease
usabletapecapacity,andresultinread/writefailureswhicheventually
interruptdatastorage.
IfyouhaveAutoDriveCleanenabledandthedriveisinapartitionwith
anassociatedcleaningpartition,thesecleaningsareperformed
automatically.SeeCreatingaCleaningPartitiononpage187for
informationaboutconfiguringacleaningpartition.
Itmayalsobepossibletoconfigurethehostsoftwaretoautomatically
cleanthedrives,withacleaningtapestoredinthepartition,whenthe
softwareisnotifiedthatdrivecleaningisnecessary.
Ifnoautomaticcleaningprocessisconfigured,youmustmanuallyclean
thedrive.Ifyouignoreacleaningrequestfortoolong,thelibrary
generatesawarningsystemmessage.
User Privilege Requirements WhenAutoDriveCleanisenabledforthe
storagepartitionandacleaningcartridgeisavailableinthecleaning
partition,cleaningsareperformedautomaticallyanddonotrequireuser
intervention.
IfAutoDriveCleanisnotenabled,anyus erwithoperatorprivileges whois
assignedtothepartitionandalluserswithsuperuseroradministrator
privilegescanmanuallycleanadrive withoutanassociated cleaning
partitionbyimportingacleaningcartridgeintothestoragepartition’sentry/
exitpool,ifnecessary,andusingtheInventoryscreen tomanuallymovethe
cleaningcartridgetothedrive(see
NoCleaningPartitionPresenton
page466).
Onlyauserwithsuperuseroradministratorprivilegescanmoveacleaning
cartridgestoredinthepartitionusingtheBlueScalewebinterface(RLC).