HP Lto 5 Manual

							SegmentDescriptionSegmentSizeSegmentStart
Address
Externalflash100000h100000h
ExternalSRAM(iffitted)80000h200000h
FormatterASIC80000h380000h
ServoControllerASIC40000h400000h
ControllerinternalSRAM7000hFF8000h
3F8000hbytesSCSIBurstBuffer
Size=8KBLTO-Cartridge
Memory
Size=8KBMechanismEEPROM
Size=16KBHeadAssembly
EEPROM
Size=32KBPCAEEPROM
READBUFFERreturneddata:
Theformatofthe4-bytedescriptorforMode00000bisasfollows:
01234567
Reserved(0)0
BufferCapacity(MSB)1
(LSB)3
Theformatofthe4-bytedescriptorforMode00011bisasfollows:
01234567
BufferOffsetBoundary0
BufferCapacity(MSB)1
(LSB)3
Theformatofthe4-byteEchobufferdescriptorforMode01011bisasfollows:
01234567
EBOS(1)Reserved(0)0
EchoBufferSize(1000h)(MSB)1
(LSB)3
ReadingtheSnapshotdatabuffer
YoucanusetheREADBUFFERcommandwithBufferID40htoretrievethelatestSnapshotlog.
ThemainadvantageofthisoverusingtheREADSNAPSHOTLOGcommandtoretrievethemost
recentSnapshotlog,isthatthedatacanberetrievedoveranumberofcommands,makingthe
datamoremanageableinlibrarysystems.HowevertheSnapshotdatabufferhasneitherafixed
locationnorsize,soyoumustcreateaSnapshotlogbeforeyoucanaccesstheSnapshotdata
READBUFFER3Ch141 
						

							buffer.Consequently,usingREADBUFFERcommandstoaccesstheSnapshotdatabufferrequires
specialhandlingandconsideration,asdescribedbelow.
1.TodeterminethelengthoftheSnapshotdatabuffer,executeaREADBUFFERcommandwith
ModesettoDescriptor(03h)andBufferIDsetto40h.
2.RetrievethebuffercontentsbyexecutingaREADBUFFERcommandwithModesettoData
(02h)andBufferIDsetto40h.
SothatthecontentsoftheSnapshotdatabufferarepreservedduringretrievalusingaREADBUFFER
command,theyarelockedfromthemomentthefirstbyteofthebufferisretrieved,andremain
lockeduntilthelastbytehasbeenretrieved.Thisallowsyoutoretrievethecontentsofthebuffer
usingmultipleREADBUFFERcommands.ThecontentscannotberetrievedusingREADBUFFER
untilthebufferhasbeenlocked;itisthereforenecessarytostartretrievalfromBufferOffset
000000h.Youdonotneedtoreadtheentirebuffercontentstounlockthebuffer;onlytoreadthe
lastbyte.ThebufferisalsounlockedwhenaFORCESNAPSHOTcommandisexecuted.
•IfaSnapshotloghasnotbeencreated,theREADBUFFERcommandterminateswithCHECK
CONDITIONstatus,asensekeyofILLEGALREQUESTandadditionalsenseof2400h(invalid
fieldinCDB).
•IfaSnapshotlogisbeingcreated,ortheSnapshotcommandsetisbeingupdated,the
commandterminateswithCHECKCONDITIONstatus,asensekeyofNOSENSEand
additionalsenseof0016h(operationinprogress).
•IfanotherinitiatorisretrievingthemostrecentSnapshotlogusingeitheraREADSNAPSHOT
LOGorREADBUFFERcommand,theREADBUFFERcommandterminateswithCHECK
CONDITIONstatus,asensekeyofNOSENSEandadditionalsenseof0016h.
READCAPACITY(CD-ROMmode)25h
READcapacitytransfersReadCapacitydatatothehost.
Pre-executionchecks
BadLUNFlagLinkFixedBitIllegalField
UnitAttentionDeferredErrorReservation
IfthedriveisnotinCD-ROMmode,therequestwillreturnCHECKCONDITIONstatuswithasense
keyIllegalCommand.
Commanddescriptorblock
01234567
OperationCode(25h)0
RelAdr(0)Reserved(0)LogicalUnitNumber1
LogicalBlockAddress(0)(MSB)2
(LSB)5
Reserved(0)6
Reserved(0)7
PMIReserved(0)8
Control9
142Commands 
						

							CDBfields
Thisflagisignored.Itisrecommendedthatitshouldbezero.LogicalBlockAddress
Thisflagisignored.Itisrecommendedthatitshouldbezero.PMI
ReadCapacitydata
Thefollowingdataisalwaysreturned
01234567
ReturnedLogicalBlockAddress(0004B000h)(MSB)0
(LSB)3
BlockLengthinbytes(00000800h)(MSB)4
(LSB)7
READFIRMWARETRACELOGA3h(1Fh)
READFIRMWARETRACELOGallowsanapplicationclienttoretrievealistofsupportedfirmware
tracelogsandretrievedrivefirmwaretracelogs.Eachfirmwaresubsystem’stracelogsconsistof
oneormoretracelogbanks,whichneedtobeextractedindividuallyusingseparateREAD
FIRMWARETRACELOGcommands.
IftheTraceLogandTraceBankfieldsaresettozero,thecommandreportsalistofsupported
tracelogs.Inordertoextractalltracelogsanapplicationclientshouldretrievethelistofsupported
firmwaretracelogsandthenretrieveallthelogsintheordertheyarereportedinthelist.Trace
logbanksshouldberetrievedinnumericalorder;bankzeroshouldalwaysberetrievedfirst.
Pre-executionchecks
UnitAttentionDeferredErrorReservationIllegalField
Commanddescriptorblock
01234567
OperationCode(A3h)0
ServiceAction(1Fh)Ignored1
ServiceActionQualifier(10h)2
TraceLog3
TraceBank4
Reserved(0)5
AllocationLength6
9
Reserved(0)10
Control11
READFIRMWARETRACELOGA3h(1Fh)143 
						

							CDBfields
Specifiesthefirmwaresubsystemtracelogtoreturn:TraceLog
Supportedlistoftracelogs00h
SystemARMTraceLog01h
HostARMTraceLog02h
ManagementARMTraceLog03h
OrionARMTraceLog04h
Reserved05h–FFh
WhichtracebanktoreturnofthefirmwaresubsystemspecifiedintheTraceLogfield.Thefirst
traceloginanyfirmwaresubsystemisBank0.TheTraceBankfieldcantakevaluesinthe
range0throughtothenumberoftracebanksminusone.
TraceBank
Thelengthinbytesallocatedfortheparameterdata.Theactualnumberofbytesreturnedwill
bethelesserofthelengthoftheactualparameterlistandtheallocationlengthspecifiedinthe
command.
AllocationLength
READFIRMWARETRACELOGreturneddata
Theformatoffirmwaretracelogsdependsonthesubsystemdependantandnotdefinedhere.
Theformatoftheparameterdatawhenreportingthelistofsupportedtracelogs(boththeTrace
LogandTraceBankfieldssetto0)isasfollows:
01234567
DataLength(n–3)(MSB)0
(LSB)3
TraceLogDescriptorList
TraceLogDescriptor(first)
4nl:nl11
::
TraceLogDescriptor(last)
n–7nl:nln
TraceLogDescriptors:
01234567
TraceLog0
TraceBanks1
Reserved(0)2–3
MaximumTraceLogSize4–7
144Commands 
						

							Asabove,intheCommandDescriptorBlockfield.TraceLog
Thenumberoftracelogbankssupportedbythefirmwaresubsystemspecifiedin
TraceLog.
TraceBanks
ThemaximumlengthinbytesoftheeachtracelogbankindicatedintheTraceLog
field.
MaximumTraceLogSize
READLOGGED-INHOSTTABLEA3h(1Fh)
TheREADLOGGED-INHOSTTABLEcommandgivesadeviceservervisibilityofallhostscurrently
loggedintothedrive.
Pre-executionchecks
DeferredErrorDeferredErrorReservationIllegalFieldUnitAttention
Commanddescriptorblock
01234567
OperationCode(A3h)0
ServiceAction(1Fh)Ignored1
HPLTOVUMIOpcode(06h)2
ReportTypeReserved(0)3
Reserved(0)4
5
AllocationLength(MSB)6
(LSB)9
Reserved(0)10
Control11
CDBfields
Determinesthecontentsofthereturneddata:ReportType
Returnalogged-inhostdescriptorforallhosts00h
Onlyreturnadescriptorforthehostthatissuedthiscommand01h
Reserved02h–0Fh
Thenumberofbytesallocatedforthereturnedparameterdata.Theactualnumberreturned
willbethelesserofthelengthoftheactualparameterlistandtheallocationlength.
AllocationLength
READLOGGED_INHOSTTABLEreturneddata
TheformatoftheREADLOGGED-INHOSTTABLEparameterlistisasfollows:
01234567
ParameterListLength(n–3)(MSB)0
(LSB)3
READLOGGED-INHOSTTABLEA3h(1Fh)145 
						

							01234567
HostDescriptor4
n
HostDescriptorsaredefinedasfollows:
01234567
World-WideNodeName(8bytes)0
7
World-WidePortName(8bytes)8
15
SourceID(4bytes)16
19
PortLog-InTime(6bytes)20
25
PHYPortReserved(0)MEReserved(0)26
HostID27
28
RelativePortIndex29
Reserved(0)30–31
Thelogged-inhost’sNodeWWNidentifierWorld-WideNodeName
Thelogged-inhost’sPortWWNidentifier.World-WidePortName
Thelogged-inhost’ssourceidentifierfromthefabricswitch.SourceID
Thetime-stampofwhenthehostcompleteditsPLOGIprocess.PortLog-InTime
Theinformationreportedinthisdescriptorcorrespondstotheinitiatorthatsent
thecommand.
1ME
Thephysicaltargetportthishostisconnectedto:PHYPort
PortA00b
PortB01b
Reserved10b-11b
Thelogged-inhost’sindexintheLogged-InHostTable(intherange0–511).HostID
Theprimaryportindexvaluefortheportthehostislogged-inon:PrimaryPortIndex
Reserved00h
PrimaryFibreChannel/SASPortA01h
PrimaryFibreChannel/SASPortB02h
PrimaryFibreChannelNPIVPortA03h
PrimaryFibreChannelNPIVPortB04h
Reserved05h–FFh
146Commands 
						

							READMEDIASERIALNUMBERABh(01h)
READMEDIASERIALNUMBERprovidesamethodforthehostapplicationtoreadtheserialnumber
ofthecartridgecurrentlyloadedinthedrive.
Pre-executionchecks
MediaAccessUnitAttentionDeferredErrorReservationIllegalField
Commanddescriptorblock
01234567
OperationCode(ABh)0
ServiceAction(01h)Reserved(0)1
Reserved(0)2
8
AllocationLength(MSB)6
(LSB)9
Reserved(0)10
Control11
CDBfields
Themaximumamountofdata(inbytes)tobereturnedtothehost.Thedrivewillreturntheentire
serialnumberstringorallocationlengthbytes,whicheverisleast.
AllocationLength
Ifthereisnocartridgeinthedrive,thecommandisterminatedwithCHECKCONDITIONstatus.
ThesensekeyissettoNOTREADYwithadditionalsenseof3A00h(mediumnotpresent).
READMEDIASERIALNUMBERreturneddata
ThedatareturneddependsonwhetherabarcodenumberhasbeenstoredintheLTO-CMusing
theWRITEATTRIBUTEcommand.Storingthisistheresponsibilityoftheautomationcontrolleror
hostapplication.
Nobarcodestored
01234567
SerialNumberLength(0Ch)(MSB)0
(LSB)3
CartridgeSerialNumber(MSB)4
(LSB)13
ASCIINULcharacters(00h)(MSB)14
(LSB)15
Theserialnumberof10ASCIIcharactersstoredintheLTO-CMCartridgeManufacturer’s
Informationpage.
CartridgeSerialNumber
READMEDIASERIALNUMBERABh(01h)147 
						

							Barcodestored
01234567
SerialNumberLength(2Ch)(MSB)0
(LSB)3
CartridgeSerialNumber(MSB)4
(LSB)13
ASCIISpacecharacters(20h)(MSB)14
(LSB)15
BarcodeNumber(MSB)16
(LSB)47
Thebarcodenumberof32ASCIIcharactersstoredintheLTO-CMApplicationSpecificpage.BarcodeNumber
READPOSITION34h
TheREADPOSITIONcommandreturnsdatarepresentingthecurrentlogicalpositiontothehost.
ThepositionisthecountofallmarksandblocksbetweenBOMandthecurrentlogicalposition.
Thefirstblockisblock0.
Thecommandcausesnotapemovement.
TheReadPositioncommandiscomplimentedbytheLOCATEcommand.
Pre-executionchecks
DeferredErrorReservationIllegalField
DiagnosticStatusMediaAccessUnitAttention
Commanddescriptorblock
01234567
OperationCode(34h)0
ServiceActionReserved(0)1
Reserved(0)2
6
AllocationLength7
8
Control9
CDBfields
Thefollowingvaluesaresupported:ServiceAction
ShortFormBlockID
LongForm
ExtendedForm
00h
06h
08h
ForServiceActions00hand06h,mustbe0.AllocationLength
148Commands 
						

							ShortFormBlockID
01234567
Rsvd(0)PERRLOLU(0)Rsvd(0)BYCU(1)LOCU(1)EOPBOP0
PartitionNumber1
Reserved(0)2
3
FirstBlockLocation(MSB)4
(LSB)7
LastBlockLocation(sameasFirstBlockLocation)(MSB)8
(LSB)11
Reserved(0)12
Numberofblocksinbuffer(0)(MSB)13
(LSB)15
Numberofbytesinbuffer(0)(MSB)16
(LSB)19
READPOSITIONreturneddatafields—shortblockform
ThecurrentlogicalpositionisnotatBOM(beginningofmedia).0BOP
ThecurrentlogicalpositionisatBOM.1
ThecurrentlogicalpositioniswithintheEW-EOMregion.1EOP
Thenumberofblocksinthebufferisunknown.1LOCU
Thenumberofbytesinthebufferisunknown.1BYCU
ThePartitionNumber,FirstBlockLocationandLastBlockLocationfieldsarevalid.0LOLU
Nopositionerror0PERR
Therehasbeenapositionerrorcausedbytheoverflowofsomepositionfielddata.1
Thepartitionnumberforthecurrentlogicalposition.PartitionNumber
ThenumberofblocksandfilemarksfromBOMtothecurrentposition.Countingstarts
atzero,soBOMisblocklocation0.
FirstBlockLocation
AlwayssettothevalueoftheFirstBlockLocation.LastBlockLocation
LongBlockFormID
01234567
Reserved(0)LONU(0)MPUReserved(0)EOPBOP0
Reserved(0)1
3
PartitionNumber(MSB)4
(LSB)7
READPOSITION34h149 
						

							01234567
BlockNumber(MSB)8
(LSB)15
FileNumber(MSB)16
(LSB)23
SetNumber(0)(MSB)24
(LSB)31
READPOSITIONreturneddatafields—longblockform
MarkPositionUnknownMPU
TheFileNumberandSetNumberfieldsarevalid.0
ThePartitionNumberandBlockNumberarevalid.0LONU
Thepartitionnumberforthecurrentlogicalposition.PartitionNumber
ThenumberoflogicalblocksbetweenBOP(beginningofpartition)andthecurrentlogical
position.Filemarkscountasonelogicalblockeach.
BlockNumber
ThenumberoffilemarksbetweenBOPandthecurrentlogicalposition.FileNumber
ThenumberofsetmarksbetweenBOPandthecurrentlogicalposition.SetNumber
ExtendedBlockFormID
01234567
Reserved(0)LOLU(0)Rsvd(0)BYCU(1)LOCU(1)EOPBOP0
PartitionNumber1
AdditionalLength(1Ch)2
3
Reserved(0)4
Numberofblocksinbuffer(0)(MSB)5
(LSB)7
FirstBlockLocation(MSB)8
(LSB)15
LastBlockLocationnl(sameasFirstBlockLocation)
(MSB)16
(LSB)23
Numberofbytesinbuffer(0)(MSB)24
(LSB)31
READSNAPSHOTLOGA3h(1Fh)
READSNAPSHOTLOGretrievestheSnapshotlogreferencedbytheSnapshotNumber.
Pre-executionchecks
UnitAttentionDeferredErrorReservationIllegalField
150Commands