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Contents
About This Manual xii
IntendedAudience.......................................xii
HowThisManualisOrganized................................xii
RelatedPublications ..................................... xiii
ConventionsUsedinThisSpecification.......................... xiv
1Features 1-1
Features ........................................... 1-2
Read/Write Compatibility with Other Tape Drives . . . . . . . . . . . . . . . 1-4
DataCompression .................................. 1-6
CustomEEPROMOptions ............................. 1-7
StorageCapacity ................................... 1-8
PhysicalDescription ..................................... 1-9
FrontPanelControlsandIndicators........................ 1-9
BackPanelComponents...............................1-11
InternalComponentsoftheTapeDrive......................1-13
SizeandWeight....................................1-17
RelatedProducts .......................................1-18
IntegrationwithOtherExabyteProducts.....................1-18
EXATAPEÔ DataCartridges ............................1-20
ExabyteCleaningCartridges ............................1-22
2Recording Format 2-1
Helical-ScanRecording ................................... 2-2
PhysicalFormat........................................ 2-3
PhysicalTrackStructure............................... 2-3
PhysicalBlocks .................................... 2-9
SearchFields .....................................2-10
ServoAreas ......................................2-10
Recording Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
LogicalFormat ........................................2-12
SupportedLogicalFormats .............................2-12
LogicalBlocks.....................................2-13
GapBytes .......................................2-15
GapBlocksandGapTracks.............................2-16
Filemarks .......................................2-17
Setmarks (EXB-8505 and EXB-8505XL only) . . . . . . . . . . . . . . . . . . . 2-18
EndofData(EOD) ..................................2-18
TrackandBlockCounts ...................................2-19
May 1994 EXB-8205 and EXB-8505
v
(Standard and XL)