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HP Lto 5 Manual

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Page 151

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...

Page 152

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...

Page 153

Theserialnumberofthedevicefromwhichthedatahasbeenacquired.SubjectSerialNumber
Thetotalnumberofdatasetsavailableinthisdatafile.NumberofDataset
Datasetdescriptor
DescriptionByte
DatasetHeader0–127
DatasetPayload128–n
Seebelow.DatasetHeader
IfErrorNumber(intheDatasetHeader)=0000h,thepayloadisanySCSIdataINcaptured
whentheSCSIcommandintheCDBfieldwasexecuted.
IfErrorNumber=0849h,thepayloadisanySCSIsensedatacapturedwhentheSCSIcommand
intheCDBfieldwasexecuted.
DatasetPayload
Datasetheader
DescriptionByte...

Page 154

READSNAPSHOTLOGspecificstatus
AdditionalSenseKeyStatusEvent
2400h(invalidfieldin
CDB)
ILLEGAL
REQUEST
CHECKCONDNTheSnapshotlogspecifiedintheSnapshot
Numberfieldisnotavailableforretrieval,orno
Snapshotlogisavailableforretrieval.
0016h(operationin
progress)
NOSENSECHECKCONDNTheSnapshotlogisintheprocessofbeing
created.
READSTTFLOGA3h(1Fh)
TheREADSTTFLOGcommandretrievesaSnapshotlogfromnon-volatileflashmemory.
Pre-executionchecks
UnitAttentionDeferredErrorReservationIllegalField
Commanddescriptorblock...

Page 155

READTOC(CD-ROMmode)43h
READTOCtransferstheTableofContentsdatatothehost.
Pre-executionchecks
FlagLinkFixedBitIllegalField
DeferredErrorReservationBadLUN
DiagnosticStatusMediaAccessUnitAttention
IfthedriveisnotinCD-ROMmode,therequestwillreturnCHECKCONDITIONstatuswithasense
keyIllegalCommand.
TheTrack/SessionNumbermustbesetto0or1.AnyothervaluewillresultinCHECKCONDITION
statuswithsensedataasdescribedinIllegalFieldChecks.
Commanddescriptorblock
01234567
OperationCode(43h)0...

Page 156

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...

Page 157

Nodatawillbereturned.Thisisnotconsideredanerror.0AllocationLength
Thenumberofbyteswhichthehosthasallocatedforreturneddiagnosticdata.Thedrive
willreturnallocationlengthbytesortheamountofdatathatisavailable,whicheveris
least.
>0
RECEIVEDIAGNOSTICSRESULTSspecificstatus
Ifthedriveisnotconnectedtoacompatibleenclosure,aRECEIVEDIAGNOSTICcommandwith
aEnclosureServicespagenumber(01hto0Fh)willreturnaCHECKCONDITIONwithsensekey
ofNOTREADYandadditionalsenseof3502h(enclosureservicesunavailable)....

Page 158

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...

Page 159

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...

Page 160

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...

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