HP Lto 5 Manual

PerformanceDatalogpage
ThePerformanceDatalogpageis34h.Thislogisintendedtoreportdataofinteresttoa
user/applicationonhowefficientlythedriveisbeingused.
UpdatedLengthDescriptionParameter
Aftereach100MBhasbeenphysicallywritten2Repositionsper100MB0
Aftereachdatasethasbeenlogicallywritten2Datarateintobuffer1
Aftereachdatasethasbeenlogicallywritten2Maximumdatarate2
Aftereachdatasethasbeenlogicallywritten2Currentdatarate3
Fixed2Nativedatarate4
TheParameterControlByteis60hforalltheparameters....

DescriptionCodeDTDeviceErrorLogParameters
HardwareErrordata(seebelow)0000h
MediaErrordata0001h
Reserved0002h–7FFFh
Vendor-specific8000h–FFFFh
HardwareErrordatalogparameter
01234567
ParameterCode(0000h)(MSB)0
(LSB)1
Format&Linking(11b)TMC(0)ETC(0)TSD(0)ObsoleteDU(0)2
ParameterLength(16h)3
SenseKeyReserved(0)4
AdditionalSenseCode5
AdditionalSenseCodeQualifier6
HardwareError(MSB)7
(LSB)8
HostIdentification(MSB)9
(LSB)16
Power-onCount(MSB)17
(LSB)18
Power-onTimeofError(MSB)19
(LSB)22...

DeviceStatuslogpage
TheDeviceStatuslogpageis3Eh,withapagelengthof28h.PCB=ParameterControlByte.
PCBUpdatedLengthDescriptionParameter
40hObsolete.Settoallzeros.4DeviceType0
40hUsedtoprovideremotestatusofselected
monitoringpointsonthedrive.Seebelowfor
theformat.
4DeviceStatusBits1
60hNumberofloads/unloadsoverthelifeofthe
device.
4TotalNumberofLoads2
40hAccumulatednumberofusesofthelast
cleaningcartridge.Updatedafterthetapeis
loadedandacleaningeventattempted.If
thereisnovalue,FFFFFFFFhisreturned....

TriggersforchangesintheDeviceStatusandMediumStatusfields
ThefollowingtablesummarizesthetriggersthatcausetheDeviceStatusandMediumStatusfields
tobesettodifferentvalues:
MediumStatusDevice
Status
FaultTape
Unrecoverable
Fault
Tape
FaultDrive
Unrecoverable
Fault
Drive
Event
GoodFailed0011Power-onself-testfailure
GoodDegraded0001Mechanisminterfacehardware
error
DegradedGood0100Snappedtape
FailedFailed1111Unrecoverablesnappedtape
DegradedGood0100Loadfailurefordriveerrorwith
MediaFaultbitsetinerrorcode...

MANAGEMENTARMSELF-TESTA3h(1Fh)
TheMANAGEMENTARMSELF-TESTcommandallowsanapplicationclienttoinitiateaspecific
ManagementARMself-test.
NOTE:ExecutingthiscommandrequirestheNetworkInterfacetobere-initializedtoreturnitto
anoperationalstate.
Pre-executionchecks
DeferredErrorReservationIllegalField
AvalidTestIDmustbeprovided,otherwisethedeviceserverterminatesthecommandwithCHECK
CONDITION,asensekeyofHARDWAREERRORandadditionalsenseof4400h(internaltarget
failure),andreportsdriveerror1879h.
Commanddescriptorblock...

Timer0Ch
DRAM0Dh
Tracepoint0Eh
RTC0Fh
Thelengthinbytesallocatedfortheparameterdata.Theactualnumberofbytesreturnedwill
bethelesserofthelengthoftheactualparameterlistandtheallocationlengthspecifiedinthe
command.
AllocationLength
MANAGEMENTARMSELF-TESTreturneddata
Thecommandreturns1byteofresultdataduringthedata-outphasetoindicatetestcompletion
status:
01234567
CompletionStatus0
Success0AhCompletionStatus
Failure0Bh
MODESELECT15h/55h...

Commanddescriptorblock(6–byteversion)
01234567
OperationCode(15h)0
SP(0)Reserved(0)PFReserved(0)1
Reserved(0)2–3
ParameterListLength4
Control5
Commanddescriptorblock(10–byteversion)
01234567
OperationCode(55h)0
SP(0)Reserved(0)PFReserved(0)1
Reserved(0)2–6
ParameterListLength(MSB)7
(LSB)8
Control9
CDBfields
PageFormatPF
TheMODESELECTparameterdataisnotSCSI-2modepagecompatible.Onlythe
parameterheaderandblockdescriptormaybesent.
0
TheparameterdataisSCSI-2mode-pagecompatible.1
SavePagesSP...

Modepagerepresentation
CertainconventionsareusedinthefollowingModeParameterpagesinordertodescribethe
natureoftheparameters.Mostparametersaregivenbyname,followedbyanumberinbrackets.
Thebracketshavethefollowingmeanings:
Squarebracketsindicatethattheparametermaybemodified.Thenumberinside
thebracketsisthedefaultvalueforthefield—inotherwords,thepower-uporreset
value.
•MODESELECTmaymodifythisvaluebysendingthepagewithanewvaluein
thefield.
•MODESENSE(currentvalues)willreturnthecurrentvalueoftheparameter....

•1Ah“PowerConditionmodepage”(page109)
•1Ch“InformationExceptionsmodepage”(page109)
•1Dh“MediumConfigurationmodepage”(page110)
•3Bh“SerialNumberOverridevendor-uniquemodepage”(page111)
•3Ch“DeviceTimemodepage”(page112)
•3Dh“ExtendedResetvendor-uniquemodepage”(page113)
•3FhOBDRFWvariantsonly:“CD-ROMEmulation/DisasterRecoverymodepage”(page114)
•Returnallpages(page3Fh)—forMODESENSEonly
Modeparameterheader
TheModeParameterheadermustalwaysbesentatthestartofModeSelectdata.Itisalways...

Theusualmediumtypewhenthedriveisinnormaltapedrivemode.00hMediumType
WORMmediaisloaded.01h
ThetapedriveisinCD-ROMemulationmodeforOBDR.80h
WriteProtect.IgnoredforMODESELECT.WP
MODESENSE:Thetapeiswrite-enabled0
MODESENSE:Thetapeiswrite-protected1
ThedrivewillnotreportGOODstatusonWriteandWriteFilemarkscommands
untilalldata(blocksandfilemarks)hasbeensuccessfullywrittentotape.
0BufferedMode
ThedrivewillreportGOODstatusforWriteandWriteFilemarkscommandsas...