Spectra T950 - Page 281

Chapter 9 — Configuring and Using Media Lifecycle Management BlueScale Media Lifecycle Management
November 2016 User Guide—Spectra T950 Library
281
Media Health Score Theinitialload/unloadduringdiscoveryestablishes
aninitialmediahealthscoreforeachcartridgeandaddsthisinformation
totheMLMdatabase.Thisinitialhealthscoremaynotaccuratelyreflect
theactualhealthofthemedia.Thehealthscorestabilizesandbecomes
moreaccurateafterthefirstfourloads/unloadsascurrentusagestatistics
areupdatedandusedinthetape’shealthscoring.
MLM Health Reports MLMreportsletyoureviewimportanthealth
informationabouteveryMLM‐enableddatatapeandcleaningtapeinyour
library.YoucangeneratecomprehensivehealthreportsfortheMLM‐
enabledmediainthewholelibraryorinanindividualpartition.Youcan
alsogeneratemoredetailedreportswithinformationaboutcompression
ratios,loadcounts,writeerrors,remainingcapacity,encryptionstatus,and
more.
TheMLMreportshelpyouidentifytapeswithhigherrorratesorother
problems(forexample,adroppedleaderpin)thatposearisktoprotecting
yourdata.Thesetapescanthenberemovedbeforetheycausedata
corruptionorotherproblems.SeeGenerateMLMReportsonpage308for
detailedinformationaboutthetypesofreportsyoucangenerate.
MLM Database Management AfteracartridgeisaddedtotheMLM
database,itsMLMdataremainsinthedatabaseevenifthecartridgeis
exportedfromthelibrary.Ifthecartridgeislaterreimported,theMLM
databaseisupdatedtoreflectanynewinformationobtainedfromthe
cartridgeMAM.Whenacartridgeispermanentlyremovedfromservice,it
canbemanuallydeletedfromthedatabase.
TheMLMdatabaseisrestrictedtoamaximumof5,000recordswhenthe
libraryisusingaSpectraPCastheLCM;themaximumis75,000records
whenthelibraryisusingaSpectraLSastheLCM.Whenthislimitis
reached,therecordfortheleastrecentlyexportedcartridge,asdetermined
bytheExportDatetrackedbyMLM,isautomaticallydeleted.Thelibrary
doesnotnotifyyouwhenitreachesthemaximumnumberofrecords.
Toensurethatyouhaveacompleterecord ofallthecartridgesthatareus ed
inthelibrary,regularly generateandexportaMediaHealthreportforthe
entirelibrary(see
UsingMLMReportingonpage308).Whenacartridgeis
retiredorpermanently exportedfromth e library,it srecordcanbedeleted
fromtheMLM database.Recordsca nbedeletedindividuallyorasagroup
(see
DeleteMLMRecordsFromtheDatabaseonpage318).
Ifdesired,theinformationintheMLMdatabasecanbeexportedtoa
comma‐separated‐value(CSV)file,whichcanthenbeimportedinto
MicrosoftExcel
®
orothersoftwareapplicationsthatsupportthisfiletype
(see
DownloadtheMLMDatabaseforAnalysisandArchivalonpage321).