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...

buffer.Consequently,usingREADBUFFERcommandstoaccesstheSnapshotdatabufferrequires
specialhandlingandconsideration,asdescribedbelow.
1.TodeterminethelengthoftheSnapshotdatabuffer,executeaREADBUFFERcommandwith
ModesettoDescriptor(03h)andBufferIDsetto40h.
2.RetrievethebuffercontentsbyexecutingaREADBUFFERcommandwithModesettoData
(02h)andBufferIDsetto40h.
SothatthecontentsoftheSnapshotdatabufferarepreservedduringretrievalusingaREADBUFFER...

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...

CDBfields
Specifiesthefirmwaresubsystemtracelogtoreturn:TraceLog
Supportedlistoftracelogs00h
SystemARMTraceLog01h
HostARMTraceLog02h
ManagementARMTraceLog03h
OrionARMTraceLog04h
Reserved05h–FFh
WhichtracebanktoreturnofthefirmwaresubsystemspecifiedintheTraceLogfield.Thefirst
traceloginanyfirmwaresubsystemisBank0.TheTraceBankfieldcantakevaluesinthe
range0throughtothenumberoftracebanksminusone.
TraceBank
Thelengthinbytesallocatedfortheparameterdata.Theactualnumberofbytesreturnedwill...

Asabove,intheCommandDescriptorBlockfield.TraceLog
Thenumberoftracelogbankssupportedbythefirmwaresubsystemspecifiedin
TraceLog.
TraceBanks
ThemaximumlengthinbytesoftheeachtracelogbankindicatedintheTraceLog
field.
MaximumTraceLogSize
READLOGGED-INHOSTTABLEA3h(1Fh)
TheREADLOGGED-INHOSTTABLEcommandgivesadeviceservervisibilityofallhostscurrently
loggedintothedrive.
Pre-executionchecks
DeferredErrorDeferredErrorReservationIllegalFieldUnitAttention
Commanddescriptorblock
01234567
OperationCode(A3h)0...

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...

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...

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....

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...

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...