HP Lto 5 Manual
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Standardself-test IfSelf-Test=1andUntOffl=0,atestisperformedthatdoesnotaffectthecontents ofthetape.Thistestisamoreextensivesetofthetestscarriedoutatpower-on. IfUntOffl=1,thetapecontentscanbeoverwrittenandwillbeundefinedafter thetest.Ausercanre-usethetapeafterthetest. Withatapeinserted: Thesameself-testwillbeexecutedregardlessofthesettingofUntOffl. Theresultsofanyself-test(poweronornot)canbedeterminedbyreadingthe Self-Testdiagnosticpagebeforeexecutingadiagnostic(whichwilloverwritethe result). Withnotapeinthedrive: SETCAPACITY0Bh Thisprovidesameansofchangingthelogicallengthofthecurrently-loadedmedia.Theprimary useenvisagedisfortestingpurposes,althoughitmayalsobeusedinothercircumstanceswhere ashortenedtapemaybebeneficial. Notethatalldatacurrentlyonthemediawillbelostfollowingsuccessfulexecutionofthiscommand. ThecommandisonlyacceptedwhenthemediaispositionedatBeginningofMedia(BOM). WithWORMcartridges,thecommandisonlyacceptedandexecutedifthecartridgehasnotbeen initialized,thatis,ithasneverbeenwrittento.OtherwisethecartridgeisrejectedwithCHECK CONDITION,sensekeyofDataProtectandadditionalsenseof300Ch(WORMmedia—overwrite attempted).TapeAlertflags3Ch(WORMmedia—overwriteattempted)and09h(write-protect) areset. TheSETCAPACITYcommandwillreturnthetapetoasinglepartitionofthesizespecified.Ifthe commandisusedtolimittheapparentsizeofthetape,thenthecapacityavailabletoafuture partitionwillalsobelimiteduntilanotherSETCAPACITYcommandisexecutedtorestorethe originalsize. Pre-executionchecks DeferredErrorReservationIllegalField MediaWriteMediaAccessUnitAttention Commanddescriptorblock 01234567 OperationCode(0Bh)0 ImmedReserved(0)1 Reserved(0)2 CapacityProportionValue(MSB)3 (LSB)4 Control5 CDBfields StatuswillnotbereturneduntiltheSETCAPACITYoperationhascompleted.0Immed StatuswillbereturnedassoonastheCDBhasbeenparsed.1 Theportionofthetotalvolumecapacitytobemadeavailableforuse.Thevaluegivenhereisthe numeratorofafractionwithadenominatorof65,535.Theresultingavailablecapacitywillbe(total volumecapacityxcapacityproportionvalue)/65535. Capacity Proportion Value SETCAPACITY0Bh211
NotethattheLTOformatenforcesaminimumtapelength.Avaluethatwouldresultinatape lengthbelowthisminimumwillbesilentlyroundeduptotheminimumpermittedlength. ThefollowingtablegivestheminimumacceptableCapacityProportionValuesandtheapproximate capacitytheywillgive: Max.capacityResultantapprox.min.capacityMin.capacityproportionvalueCartridge 400GB33GB151AhLTO-3 800GB51GB1055hLTO-4 1500GBTBDGBTBDhLTO-5 NOTE:Capacitiesareapproximateandcanbeaffectedbydefectsthatreducetheactualcapacity ofthetape.Otherfactors,suchascompressionandblockpacking,mayalsoaffectcapacity. SETDEVICEIDENTIFIERA4h(06h) SETDEVICEIDENTIFIERallowsainitiatortosettheDeviceIDinformationtothatsuppliedinthe ParameterList.ThisinformationcanbelaterretrievedbytheREPORTDEVICEIDENTIFIERcommand. UponsuccessfulcompletionthecommandwillpostsensekeyUNITATTENTIONwithadditional senseof3F05h(deviceidentifierchanged)toallinitiatorsexcepttheonethatissuedthecommand. OncesettheDeviceIdentifierwillonlybeclearedbyasuccessfulSetDeviceIdentifiercommand oradrivereset. Pre-executionchecks UnitAttentionDeferredErrorReservationIllegalField Commanddescriptorblock 01234567 OperationCode(A4h)0 ServiceAction(06h)Reserved(0)1 Reserved(0)2–5 ParameterListLength(MSB)6 (LSB)9 Reserved(0)10 Control11 CDBfields ThelengthinbytesoftheDeviceIdentifiertobeset.Ifthevalueexceeds64,CHECK CONDITIONisreturnedwithadditionalsenseof2400h(invalidfieldinCDB). ParameterListLength Notanerror,butclearsanypreviouslystoredDeviceID.0 212Commands
SETDEVICEIDENTIFIERreturneddata TheformatoftheDeviceIdentifiersuppliedintheParameterListisasfollows: 01234567 Identifier(MSB)0 (LSB)n SETIPCONFIGURATIONA4h(1Fh) TheSETIPCONFIGURATIONcommandrequeststhedeviceservertosettheInternetProtocol configurationsheldinnon-volatilememory.Thechangewillnottakeeffectuntilthenexthardreset. Thecommandisaserviceactionqualifierforthevendor-specificserviceactionofthe MAINTENANCEOUTcommand. Pre-executionchecks UnitAttentionDeferredErrorReservationIllegalField Commanddescriptorblock 01234567 OperationCode(A4h)0 ServiceAction(1Fh)Ignored1 ServiceActionQualifier(12h)2 Reserved(0)3–5 ParameterListLength6 9 Reserved(0)10 Control11 CDBfields ThelengthinbytesoftheSETIPCONFIGURATIONparametersthatwillbetransferredfrom theapplicationclienttothedeviceserver.Avalueofzeromeansnodatawillbetransferred, andtheIPconfigurationwillremainunchanged. ParameterListLength Parameterdata Theformatoftheparameterdataisthesameasfor“REPORTIPCONFIGURATIONA3h(1Fh)” (page163).Theparameterdatashouldcontainoneormoredescriptorsindicatedbyan‘X’inthe ConfigurationDescriptorTypetable,whichneedtobechanged.Thenewvalueswilltakeeffect afterthenexthardreset. SETSNAPSHOTCOMMANDSA4h(1Fh) SETSNAPSHOTCOMMANDSisusedtochangethecurrentSnapshotcommandsettothecommand setspecifiedbythiscommand.Youcansetamaximumof128commandstoberunatthesnapshot point.Onlycommandswhichdonotaffecttheread/writestateofthedriveareallowed.You cannotalterorsetcommandsindividually. SETIPCONFIGURATIONA4h(1Fh)213
Pre-executionchecks UnitAttentionDeferredErrorReservationIllegalField Commanddescriptorblock 01234567 OperationCode(A4h)0 ServiceAction(1Fh)Reserved(0)1 HPLTOVUMIOpcode(0Ah)2 Reserved(0)3–5 ParameterListLength(MSB)6 (LSB)7 Reserved(0)8–10 Control11 Thismustbe1Fh.ServiceAction Thismustbe0Ah.HPLTOVUMIOpcode Thelengthinbytesoftheparameterlisttobetransferred.ParameterListLength SETSNAPSHOTCOMMANDSparameterdata Theformatoftheparameterdataisasfollows: 01234567 CommandDescriptorList CommandDescriptor(first)0 :: CommandDescriptor(last)n TheCommandDescriptorlistidentifiestheSCSIcommandsandtheorderinwhichtheyareexecuted whengeneratingSnapshotlogs. Commanddescriptor 01234567 DIVReserved(0)0 SCSIDataLength(n–49)1 DatasetIdentifier(MSB)2 (LSB)33 CDB(MSB)34 (LSB)49 SCSIData(MSB)50 (LSB)n 214Commands
DatasetIdentifierValidDIV TheDatasetIdentifierfieldisignoredandanySCSIdataorstatusproduced fromtheexecutionoftheSCSIcommanddefinedintheCDBfieldisnotrecorded inanySnapshotlogproducedfromtheSnapshotcommandsetspecifiedby thiscommand. 0 TheDatasetIdentifierfieldidentifiesanySCSIdataandstatusintheSnapshot logproducedwhenthecommandspecifiedintheCDBfieldisexecuted. 1 ThenumberofbytesintheSCSIDatafield.SCSIDataLength Thedatasetidentifierusedtoidentifythesnapshotdataproducedwhenthiscommand isexecuted. DatasetIdentifier TheSCSIcommandcontrolblockofthecommandtoexecutewhentheSnapshotlogis generated.ThecontentsoftheCDBfieldarenotvalidateduntilthecommandisexecuted whengeneratingtheSnapshotlogs. CDB TheSCSIdataoutbytesfortheSCSIcommandspecifiedintheCDBfield.Thelengthof thisfieldisgivenbythevalueoftheSCSIDataLengthfield.ThenumberofSCSIData bytesandthecontentsarenotvalidatedwiththeCDBfieldcontentsuntilthecommand definedintheCDBfieldisexecuted. SCSIData SETSNAPSHOTCOMMANDSspecificstatus AdditionalSenseKeyStatusEvent 0016h(operationinprogress)NOSENSECHECKCONDITIONThetapedriveisintheprocessof creatingaSnapshotlogthedevice server. 0016h(operationinprogress)NOSENSECHECKCONDITIONThetapedriveisintheprocessof readingtheSnapshotcommandset. SETSNAPSHOTCONFIGURATIONA4h(1Fh) SETSNAPSHOTCONFIGURATIONisusedtoconfiguretheeventsthattriggerthecreationof Snapshotlogs,tosetthemaximumsizeofSnapshotlogscreated,andtoclearallSnapshotlogs storedinthedrive. Thefollowingtriggereventscanbeconfigured: •CertainCHECKCONDITIONstothehost •Anunloadoccurring ThedefaultsizeofaSnapshotlogis256KB,andthelogsupportsabufferof2MB,thusallowing 8logsinmemory. Pre-executionchecks UnitAttentionDeferredErrorReservationIllegalField Commanddescriptorblock 01234567 OperationCode(A4h)0 ServiceAction(1Fh)Reserved(0)1 HPLTOVUMIOpcode(0Bh)2 Reserved(0)3–5 SETSNAPSHOTCONFIGURATIONA4h(1Fh)215
01234567 ParameterListLength(0008h)(MSB)6 (LSB)7 Reserved(0)8–10 Control11 Thismustbe1Fh.ServiceAction Thismustbe0Bh.HPLTOVUMIOpcode Thelengthinbytesoftheparameterlisttobetransferred.ParameterListLength SETSNAPSHOTCONFIGURATIONparameterdata Theformatoftheparameterdataisasfollows: 01234567 SOCCSOUReserved(0)MMLL0 Reserved(0)1–2 MaxLogLength(MSB)3 (LSB)5 Reserved(0)6–7 ModifyMaximumLogLengthMMLL Thecurrentmaximumloglengthispreserved.TheMaximumLogLengthfieldisignored.00b Reserved01b ThemaximumloglengthissettothatintheMaximumLogLengthfield.AllSnapshotlogsare cleared. 10b Themaximumloglengthissettothedefault.AllSnapshotlogsarecleared.TheMaximum LogLengthfieldisignored. 11b SnapshotOnUnloadSOU ThedriveinitiatesthecreationofanewSnapshotlogwhenthedriveunloadsmedia,except: •ifthedriveisalreadyintheprocessofcreatingaSnapshotlog,or •ifthesnapshotcommandsareintheprocessofbeingset. 1 SnapshotOnCheckConditionSOCC ThedriveinitiatesthecreationofanewSnapshotlogafterreportingCHECKCONDITION toacommandthatfailedduringexecutionforamediaerrororhardwareerror,except: •ifthedriveisalreadyintheprocessofcreatingaSnapshotlog,or •ifthesnapshotcommandsareintheprocessofbeingset. 1 IfMMLL=10b,thevaluethatthemaximumloglengthissetto.AllSnapshotlogsarecleared.For othervaluesofMMLL,thefieldisignored. MaximumLog Length 216Commands
SETEnhancedSNAPSHOTCONFIGURATIONA4h(1Fh) TheSETEnhancedSNAPSHOTCONFIGURATIONcommandisusedto: •configuretheeventsthattriggerthecreationofSnapshotlogs •savetracestoflash •setthemaximumsizeofSnapshotlogscreated •clearallSnapshotlogsstoredinthedrive ThiscommandissupportedinLTO-5productsonwards.Itspecifiestriggerconditionsforcreating SnapshotlogsandSaveTraceToFlash(STTF)logs,whichareSnapshotlogsstoredinnon-volatile flashmemory.However,thetapedrivewillnotcreateaSnapshotlogwhenatriggercondition occursinanyofthefollowingcircumstances: •ThetapedriveisalreadyintheprocessofcreatingaSnapshotlog. •Ifthesnapshotcommandsareintheprocessofbeingset. •ASnapshotloghasbeencreatedwithinthelastfifteenminutes. Pre-executionchecks UnitAttentionDeferredErrorReservationIllegalField Commanddescriptorblock 01234567 OperationCode(A4h)0 ServiceAction(1Fh)Ignored1 ServiceActionQualifier(0Dh)2 Reserved(0)3–5 ParameterListLength(000Ch)6 7 Reserved(0)8–10 Control11 CDBfields Thelengthinbytesoftheparameterlisttobetransferred.ParameterListLength Parameterdata 01234567 SOCCSOUSODECSOSDSTTFSTPMMLL0 Reserved(0)1–2 MaximumLogLength3 5 Reserved(0)6 SenseKey7 SETEnhancedSNAPSHOTCONFIGURATIONA4h(1Fh)217
01234567 AdditionalSenseCode8 AdditionalSenseCodeQualifier9 DriveErrorCode10 11 ModifyMaximumLogLength.TogetherwiththeMaxLogLengthfield,thismodifiesthemaximum loglengthasfollows: MMLL Donotmodifythecurrentmaximumloglength.TheMaximumLogLengthfield valueisignored. 00b Reserved01b SetthemaximumloglengthtothevaluespecifiedintheMaximumLogLength field.AllSnapshotlogsarecleared. 10b Setthemaximumloglengthtothedefaultlength.AllSnapshotlogsarecleared. TheMaximumLogLengthfieldvalueisignored. 11b SaveTriggerParametersSTP Thespecifiedsnapshotconfigurationisvolatileandwillreturntotheprevious non-volatilesnapshotconfigurationonadriveresetevent. 0 ThetapedrivewillsavetheSOCC,SOU,SODEC,SOSD,STTF,SenseKey, AdditionalSenseCode,AdditionalSenseCodeQualifierandDriveErrorCode fieldvaluesinnon-volatilememory.SettingtheSTPbittooneoverwritesthe ManufacturingDefaultConfigurationvalues. 1 SaveTraceToFlashSTTF ThetapedrivewillnotsaveSnapshotlogstonon-volatilememory,evenifthe STTFbitissettooneintheFORCESNAPSHOTcommand. 0 ThetapedrivewillsaveSnapshotlogstonon-volatileflashmemoryafterthey havebeencreatedinvolatilememoryfollowingaSnapshotOntriggercondition (SOCC,SOU,SODECandSOSD),exceptinthefollowingcircumstances: •ASnapshotloginflash(STTFlog)isbeingwrittentoorreadfrom. •ThelastSnapshotlogsavedtoflashwascreatedforthesameerrorcondition orarelatederrorcondition. 1 SnapshotOnSenseDataSOSD ThedriveignoresthecontentsoftheSenseKey,AdditionalSenseCode,and AdditionalSenseCodeQualifierfields. 0 ThedriveinitiatescreationofanewSnapshotlogwhenadeviceserverreturns CHECKCONDITIONstatustoacommand,oranunloadoperationfailswith thesensedataspecifiedintheSenseKey,AdditionalSenseCode,andAdditional SenseCodeQualifierfields. IftheSenseKey,AdditionalSenseCode,andAdditionalSenseCodeQualifier fieldsaresetto00h,thedeviceserverwillterminatethecommandwith CHECK-CONDITION,asensekeyofILLEGALREQUESTandadditionalsense 2400h(invalidfieldinCDB). 1 SnapshotOnDriveErrorCodeSODEC ThedriveignoresthecontentsoftheDriveErrorCodefield.0 218Commands
ThedriveinitiatescreationofanewSnapshotlogwhenadeviceserverreturns CHECKCONDITIONstatustoacommand,oranunloadoperationfailswith thesensedataspecifiedintheDriveErrorCodefield. IftheDriveErrorCodefieldissetto00h,thedeviceserverwillterminatethe commandwithCHECK-CONDITION,asensekeyofILLEGALREQUESTand additionalsense2400h(invalidfieldinCDB). 1 IftheSnapshotonUnloadbitissettoonethetapedrivewillinitiatethecreationofanew Snapshotlogwhenthetapedriveunloadsmediaexceptinthefollowingcircumstances: •ThetapedriveisalreadyintheprocessofcreatingaSnapshotlog. •Thesnapshotcommandsareintheprocessofbeingset. SOU IftheSnapshotonCHECKCONDITIONbitissettoonethetapedrivewillinitiatethecreation ofanewSnapshotlogwhenthetapedrivereportedCHECKCONDITIONstatustoacommand thatfailedduringexecutionforamediaerrororhardwareerror,exceptinthefollowing circumstances: •ThetapedriveisalreadyintheprocessofcreatingaSnapshotlog. •Thesnapshotcommandsareintheprocessofbeingset. SOCC IfMMLL=10b,thisspecifiesthemaximumloglengthfortheSnapshotlog.Otherwiseitis ignored. MaxLogLength SETTIMESTAMPA3h(1Fh) TheSETTIMESTAMPcommandrequeststhedeviceservertoinitializethetimestamp,iftheSCSIP bitissettooneortheTCMOSbitissettooneinthe“ControlExtensionsub-page”(page94).If theSCSIPbitissettozero,theSETTIMESTAMPcommandwillterminatewithCHECKCONDITION, asensekeyofILLEGALREQUEST,andadditionalsenseof2400h(invalidfieldinCDB). WhenaSETTIMESTAMPcommandcompletessuccessfully,thedeviceserverwillgenerateUNIT ATTENTIONfortheinitiatorportassociatedwitheveryI_TnexusexcepttheI_Tnexusonwhich theSETTIMESTAMPcommandwasreceived(seeSAM-4),withadditionalsenseof2A10h (timestampchanged). Pre-executionchecks UnitAttentionDeferredErrorReservationIllegalField Commanddescriptorblock 01234567 OperationCode(A3h)0 ServiceAction(0Fh)Reserved(0)1 Reserved(0)2–5 ParameterListLength6 9 Reserved(0)10 Control11 CDBfields Thelengthinbytesoftheparameterstobetransferredfromtheapplicationclienttothedevice server.Alengthofzeroindicatesnodatawillbetransferred,andthetimestampwillremain unchanged. ParameterListLength SETTIMESTAMPA3h(1Fh)219
SETTIMESTAMPparameterdata 01234567 Reserved(0)0–3 Timestamp(6bytes)4 9 Reserved(0)10–11 Theinitialvalueofthetimestamp,whichisthenumberofmillisecondsthathaveelapsedsince midnight,1January1970UT.IfthehighorderbyteinthefieldisgreaterthanF0h,the commandwillterminatewithCHECKCONDITION,sensekeyofILLEGALREQUEST,and additionalsenseof2600h(invalidfieldinparameterlist). Timestamp SPACE11h/91h SPACEprovidesavarietyofpositioningfunctionsthataredeterminedbyCodeandCountfields intheCommandDescriptorBlock.Bothforward(towardsEOM)andreverse(towardsBOM) positioningareprovided. Anyunwrittendatainthebufferisflushedtotapebeforethespaceisstarted.Thelogicalmedia positionisthenmodifiedaccordingtotheCodeandCountfields.Oncethespacehasstarted,it willcompleteeveniftheSCSIoperationisabortedforsomereason(forexample,thehostselects andsendsanabortmessage). Pre-executionchecks DeferredErrorReservationIllegalField DiagnosticStatusMediaAccessUnitAttention TheCodefieldmustbe0,1or3.IfitisnotthenCHECKCONDITIONstatusisreported.Sense datawillbeasdescribedintheIllegalFieldChecks. Commanddescriptorblock(6–byteversion) 01234567 OperationCode(11h)0 CodeReserved(0)1 Count(n)(MSB)2 (LSB)4 Control5 Commanddescriptorblock(16–byteversion) 01234567 OperationCode(91h)0 CodeReserved(0)1 Reserved(0)2–3 Count(n)(MSB)4 (LSB)11 220Commands