HP Lto 5 Manual
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Commanddescriptorblock 01234567 OperationCode(A3h)0 ServiceAction(1Fh)Reserved(0)1 HPLTOVUMIOpcode(08h)2 SNVReserved(0)3 SnapshotNumber(MSB)4 (LSB)5 AllocationLength(MSB)6 (LSB)8 Reserved(0)9–10 Control11 CDBfields Thismustbe1FhServiceAction Thismustbe08h.HPLTOVUMIOpcode SnapshotNumberValidSNV TheSnapshotNumberfieldisignoredandthemostrecentSnapshotlogcreated isretrieved. 0 TheSnapshotNumberfieldspecifiesthereferencenumberoftheSnapshottobe retrieved. 1 IfSNV=1,thisisthereferencenumberoftheSnapshottoberetrieved. IfSNV=0,thisfiledisignoredandthemostrecentSnapshotlogcreatedisretrieved. SnapshotNumber Thedrivewillreturnuptothisnumberofbytes,truncatinganyparameterdataasrequired.AllocationLength READSNAPSHOTLOGreturneddata 01234567 DataFileHeader(MSB)0 (LSB)1 DatasetDescriptorList DatasetDescriptor(first)(MSB)160 (LSB)... :: DatasetDescriptor(last)(MSB)... (LSB)n READSNAPSHOTLOGA3h(1Fh)151
Datafileheader DescriptionByte Signature(DECAFBADh)0–3 HeaderLength(00A0h)4–7 Version(0000h)8–9 TimestampType(0005h)10–11 Timestamp12–19 LibraryModel20–51 LibrarySerialNumber52–83 Generator(0005h)84–87 SubjectDeviceCategory88–91 SubjectProductID92–123 SubjectSerialNumber124–155 NumberofDataset156–159 Usedforidentification.MustbesettoDECAFBADh.Signature Thesizeofthedatafileheader.Mustbesetto000Ah(160).HeaderLength Theversionnumberforthedatafileheaderstructure.Mustbesetto0000h.Version Thetimestampformat.TimestampType Power-ontime.5 Thetimefrompower-onatwhichtheSnapshotlogwascreated,inunitsof16μS.Timestamp Themodelnameofthelibraryfromwhichdatahasbeenacquired.FilledwithASCIIspace characters(20h). LibraryModel Theserialnumberofthelibraryfromwhichdatahasbeenacquired.FilledwithASCIIspace characters(20h). LibrarySerialNumber IndicatesanLTOdrivecreatedthedatafile.05hGenerator Thedrivetypethatcreatedthedatafile:SubjectDevice Category HPLTOUltrium4full-heightSCSI4000000Dh HPLTOUltrium4full-heightSAS4000000Eh HPLTOUltrium4full-heightFC4000000Fh CerfSAS4000001Ch HPLTOUltrium4half-heightSCSI4000001Dh HPLTOUltrium4half-heightSAS4000001Eh HPLTOUltrium4half-heightFC4000001Fh HPLTOUltrium5SAS40000020h HPLTOUltrium5FC40000021h TheProductIDofthedevicefromwhichthedatahasbeenacquired,takenfromthestandard INQUIRYdataleft-alignedandspace-padded,forexample:“Ultrium-5FC” SubjectProjectID 152Commands
Theserialnumberofthedevicefromwhichthedatahasbeenacquired.SubjectSerialNumber Thetotalnumberofdatasetsavailableinthisdatafile.NumberofDataset Datasetdescriptor DescriptionByte DatasetHeader0–127 DatasetPayload128–n Seebelow.DatasetHeader IfErrorNumber(intheDatasetHeader)=0000h,thepayloadisanySCSIdataINcaptured whentheSCSIcommandintheCDBfieldwasexecuted. IfErrorNumber=0849h,thepayloadisanySCSIsensedatacapturedwhentheSCSIcommand intheCDBfieldwasexecuted. DatasetPayload Datasetheader DescriptionByte AquisitionMode(00000001h)0–3 Timestamp4–7 CDB8–23 PayloadOffset24–27 PayloadLength28–31 ByteOrder(0)32–35 CompressionAlgorithm(0)36–39 DatasetIdentifier40–71 ISStaleFlag(0)72 ErrorNumber73–76 ProtocolSpecificArea(0)77–127 Thelast4bytesofthe6-bytetimestampindicatingthetimethedatasetwascreated.Timestamp TheCommandDescriptorBlockofthecommandthatgeneratedthedataset.CDB AnabsoluteoffsetfromthestartofthedatafiletotheDatasetPayloadfieldforthis dataset. PayloadOffset OrderisBig-Endian.0000hByteOrder Nocompression.00000000hCompressionAlgorithm Theidentifierforthedataset.DatasetIdentifier TheSCSIcommandintheCDBfieldcompletedwithGOODstatus. AnySCSIdatafromthecommandisintheDatasetPayloadfield. 0000hErrorNumber TheSCSIcommandintheCDBfieldcompletedwithnon-GOOD status.AnySCSIsensedatafromthecommandisintheDataset Payloadfield. 0849h READSNAPSHOTLOGA3h(1Fh)153
READSNAPSHOTLOGspecificstatus AdditionalSenseKeyStatusEvent 2400h(invalidfieldin CDB) ILLEGAL REQUEST CHECKCONDNTheSnapshotlogspecifiedintheSnapshot Numberfieldisnotavailableforretrieval,orno Snapshotlogisavailableforretrieval. 0016h(operationin progress) NOSENSECHECKCONDNTheSnapshotlogisintheprocessofbeing created. READSTTFLOGA3h(1Fh) TheREADSTTFLOGcommandretrievesaSnapshotlogfromnon-volatileflashmemory. Pre-executionchecks UnitAttentionDeferredErrorReservationIllegalField Commanddescriptorblock 01234567 OperationCode(A3h)0 ServiceAction(1Fh)Ignored1 ServiceActionQualifier(09h)2 Reserved(0)3 RelativeLogIndex4 Reserved(0)5 AllocationLength6 8 Reserved(0)9–10 Control11 CDBfields WhichSTTFlogtoread:RelativeLogIndex RetrievethemostrecentSnapshotlogsavedtoflash.00h RetrievethepenultimateSnapshotlogsavedtoflash.01h Reserved02h–FFh Thedrivewillreturnuptothisnumberofbytes,truncatinganyparameterdataasnecessary.AllocationLength IfaSnapshotlog,whichwillbesavedtoflash,isintheprocessofbeingcreated,thedeviceserver willterminatethecommandwithCHECKCONDITION,asensekeyofNOSENSEandadditional senseof0016h(operationinprogress). IfthespecifiedSTTFlogisnotavailableforretrieval,thedeviceserverwillterminatethecommand withCHECKCONDITION,asensekeyofILLEGALREQUESTandadditionalsenseof2400h (invalidfieldinCDB). TheretrievedSTTFlogdataisreturnedinthesameformatastheREADSNAPSHOTLOGparameter dataformat(seepage“READSNAPSHOTLOGreturneddata”(page151) 154Commands
READTOC(CD-ROMmode)43h READTOCtransferstheTableofContentsdatatothehost. Pre-executionchecks FlagLinkFixedBitIllegalField DeferredErrorReservationBadLUN DiagnosticStatusMediaAccessUnitAttention IfthedriveisnotinCD-ROMmode,therequestwillreturnCHECKCONDITIONstatuswithasense keyIllegalCommand. TheTrack/SessionNumbermustbesetto0or1.AnyothervaluewillresultinCHECKCONDITION statuswithsensedataasdescribedinIllegalFieldChecks. Commanddescriptorblock 01234567 OperationCode(43h)0 RelAdr(0)MSFReserved(0)LogicalUnitNumber1 Format(0)Reserved(0)2 Reserved(0)(MSB)3 (LSB)5 Track/SessionNumber6 AllocationLength(MSB)7 (LSB)8 Control9 CDBfields Thisflagisignored.MSF Thismaybesetto0or1.Itdoesnotaffectthedatareturned.Track/SessionNumber Themaximumnumberofdatabytesthatmaybereturned.AllocationLength ReadTOCdata Thefollowingdataisalwaysreturned 01234567 TOCDataLength(12h)(MSB)0 (LSB)1 FirstTrackNumber(1)2 LastTrackNumber(1)3 Reserved(0)4 Control(4)ADR(1)5 TrackNumber(1)6 READTOC(CD-ROMmode)43h155
01234567 Reserved(0)7 LogicalBlockAddress(00000000h)(MSB)8 (LSB)11 Reserved(0)12 Control(4)ADR(1)13 TrackNumber(AAh)14 Reserved(0)15 LogicalBlockAddress(0004B000h)(MSB)16 (LSB)19 RECEIVEDIAGNOSTICRESULTS1Ch RECEIVEDIAGNOSTICRESULTStellsthedrivetoreturndatafromthelastdiagnostictestrequested throughtheSENDDIAGNOSTICcommand.Ifnonehasbeensent,thedatareferstothepower-on self-test. Pre-executionchecks UnitAttentionDeferredErrorReservationIllegalField Commanddescriptorblock 01234567 OperationCode(1Ch)0 PCVReserved(0)1 PageCode2 AllocationLength(MSB)3 (LSB)4 Control5 CDBfields PageCodeValidflagPCV Thedeviceserverwillreturnparameterdatabasedonthediagnosticpagewiththesame pagecodeasthatspecifiedinthemostrecentSENDDIAGNOSTICcommand). ThedeviceserverwillreturnCHECK-CONDITIONwithsensekeyILLEGALREQUESTand additionalsenseof2400h(invalidfieldinCDB)inanyofthefollowingcircumstances: •ThemostrecentSENDDIAGNOSTICcommanddidnotdefineparameterdatato return. •NoSENDDIAGNOSTICcommanddefiningparameterdatatoreturnhasbeen processedsincepoweron,hardreset,orlogicalunitreset. •ThemostrecentSENDDIAGNOSTICcommandwasnotforthisI_Tnexus. 0 ThedeviceserverwillreturnthediagnosticpagespecifiedinthePageCodefield.1 Identifierforthediagnosticinformationpagetobereturned.70hreturnstheSelf-Testpage.PageCode 156Commands
Nodatawillbereturned.Thisisnotconsideredanerror.0AllocationLength Thenumberofbyteswhichthehosthasallocatedforreturneddiagnosticdata.Thedrive willreturnallocationlengthbytesortheamountofdatathatisavailable,whicheveris least. >0 RECEIVEDIAGNOSTICSRESULTSspecificstatus Ifthedriveisnotconnectedtoacompatibleenclosure,aRECEIVEDIAGNOSTICcommandwith aEnclosureServicespagenumber(01hto0Fh)willreturnaCHECKCONDITIONwithsensekey ofNOTREADYandadditionalsenseof3502h(enclosureservicesunavailable). Ifotherinvalidpagesarerequested,CHECKCONDITIONwillresultwithstatusofILLEGALREQUEST andadditionalsenseof2601h(parameternotsupported). RECEIVEDIAGNOSTICSRESULTSreturneddata Pagecode70h—Self-Test(Read/Write) PageFormatforWrite: 01234567 PageCode(70h)0 Reserved(0)1 ParameterListLength(0)(MSB)2 (LSB)3 Noparametersareneeded.SendingthispageisequivalenttoaSendDiagnosticcommandwith boththeSelfTestandUnitOflbitsset. PageformatforRead: 01234567 PageCode(70h)0 Reserved(0)1 ParameterListLength(4)(MSB)2 (LSB)3 ErrorCode(MSB)4 (LSB)7 RELEASEUNIT17h/57h RELEASEUNITenablesthehosttoreleaseanyreservationitmayhaveonthedrive.Reservinga deviceisawayofensuringexclusiveaccesstothatdevicefromasingleinitiatorfortheperiodof thereservation.ThedrivemaybereservedusingaRESERVEcommand.The10-byteRELEASEUNIT commandissupportedbyalldrives.Itsfunctionalityisthesameasforthe6-bytecommand,but italsosupportsthird-partyreservation. Pre-executionchecks UnitAttentionDeferredErrorIllegalField RELEASEUNIT17h/57h157
Commanddescriptorblock(6–byteversion) 01234567 OperationCode(17h)0 Rsvd(0)Third-PartyDeviceID3rdPtyReserved(0)1 Reserved(0)2 4 Control5 Thisbitisalwayszerobecausethird-partyreservationisnotsupported.3rdPty Thisbitisalwayszerobecausethird-partyreservationisnotsupported.Third-PartyDeviceID Commanddescriptorblock(10–byteversion) 01234567 OperationCode(57h)0 Rsvd(0)LongIDReserved(0)3rdPtyReserved(0)1 Reserved(0)2 Third-PartyDeviceID3 Reserved(0)4 6 ParameterListLength(MSB)7 (LSB)8 Control9 Third-partyreleaseisnotrequested.03rdPty Theinitiatorrequeststhird-partyrelease.ThevalueintheThird-PartyDeviceIDfieldis valid. 1 ThisisalwayszerobecausedeviceIDsgreaterthan255arenotsupported.LongID Thisisrequiredandusedonlywhenthe3rdPtybitisset.Thedevicewillperformtherelease operationonlyiftheinitiatorID,the3rdPtybitandtheThird-PartyDeviceIDareidenticalto thoseintheRESERVEUNITcommandthatestablishedthereservation. Thedriveignoresanyattempttoreleasethereservationmadebyanyotherinitiator,including theinitiatorforwhichthereservationwasmade.Ifaninitiatorreservedthedriveusinga third-partyreservationoveritself,anon-third-partyRELEASEUNITcommandcouldalsorelease thereservation. Third-PartyDeviceID RELEASEUNITspecificstatus Statusisreturnedasfollows: •Ifthedriveisnotreserved,GOODstatusisreported. •Ifthedriveisreservedbyanotherhost,GOODstatusisreported. •Ifthedriveisreservedbythishostforthishost,thereservationstatusiscleared. 158Commands
REPORTDENSITYSUPPORT44h TheReportDensitySupportcommandreturnsdetailsaboutthetapeformatssupportedbythedrive. Thedataisreturnedasaheaderandaseriesofdensitydescriptorblocksormediumtypedescriptor blocks. Pre-executionchecks UnitAttentionDeferredErrorIllegalField Commanddescriptorblock 01234567 OperationCode(44h)0 MediaMediumTypeReserved(0)1 Reserved(0)2–6 AllocationLength(MSB)7 (LSB)8 Control9 CDBfields Thedrivereportsdensitydescriptorblocks.0MediumType Thedrivereportsmediumtypedescriptorblocks.1 Onedescriptorblockisreturnedforeachformatsupportedbythedrive.TheCapacityfield inthedescriptorblockindicatesthecapacityofthecurrentmedia. 0Media Onedescriptorblockisreturnedwiththedataforthecurrentlyloadedtape.TheCapacity fieldindicatesthemaximumfortheformat.Ifthereisnotapeinsertedinthedrive,thedrive willreturnCHECKCONDITIONwithasensekeyofNOTREADYandadditionalsenseof 3A00h(mediumnotpresent). 1 Thisspecifiesthemaximumnumberofbyteswhichthedriveshouldreturninitsdata-outphase.Either theentireavailabledataorallocationlengthbytesofthepagearereturned,whicheverisleast. Allocation Length Nodatatransferwilloccur.Thisisnotconsideredanerror.0 REPORTDENSITYSUPPORTheader 01234567 AvailableDensityDescriptorLength(MSB)0 (LSB)1 Reserved(0)2 Reserved(0)3 Theavailablelengthgivesthetotalamountofdataavailabletobereturned. REPORTDENSITYSUPPORT44h159
DensitySupportdescriptorblocks IftheMediumTypefieldissetto1,theheaderisfollowedbyoneormoreDensitySupportdescriptor blockswiththefollowingformat: 01234567 PrimaryDensityCode0 SecondaryDensityCode1 DLV(0)Reserved(0)DEFLTDUP(0)WRTOK2 Reserved(0)3–4 Bitspermm(MSB)5 (LSB)7 MediaWidth(MSB)8 (LSB)9 Tracks(MSB)10 (LSB)11 Capacity(MB)(MSB)12 (LSB)15 AssigningOrganization(LTO-CVE)(MSB)16 (LSB)23 DensityName(8bytes)(MSB)24 (LSB)31 Description(20bytes)(MSB)32 (LSB)51 ThevaluesreportedforUltrium5formattapesareasfollows: ThisisreportedviatheMODESENSEcommand.58hPrimary DensityCode Notused58hSecondary DensityCode TheWriteOKflagindicateswhetherthedrivecanwriteatthedensityindicatedbytheDensityCode.WRTOK Thedrivedoesnotsupportwritingtoatapewiththisdensity.0 Thedriveiscapableofwritingatthisdensitytothecurrenttape(iftheMediabit intheCDB=1)orforsometape(ifMedia=0). 1 TheDuplicateflagwillbesettozeroforeverydescriptorblockindicatingthateachdensityisonly reportedonce. DUP TheDefaultflagwillbesetforthedensityforwhichthecurrentlymountedmediumisformattedand clearforallotherdensities. DEFLT 15142Bitspermm Tapewidthis1/2”or12.65mm.Thevalueinthisfieldisintenthsofmillimeters roundedtothenearest0.1mm. 127MediaWidth 1280Track 160Commands