TL881 or TL891 MiniLibrary in configurations set up for either maximumperformance or maximum capacity.Table8–10: TL881 and TL891 MiniLibrary Performance and Capacity Comparison
TL881 MiniLibrary TL891 MiniLibrary
Configured
for
Maximum:
Number of
Base Unitsab Number of
DataUnitscTransfer
RatedStorage
CapacityeTransfer
RatefStorage
Capacityg
Performance 50
15 MB/sec
(54
GB/hour)
1.32TB (66
cartridges) 50 MB/sec
(180
GB/hour)
2.31TB (66
cartridges)
Capacity 14
3 MB/sec
(10.8
GB/hour)
1.8 TB (90
cartridges) 10 MB/sec
(36
GB/hour)
3.15TB (90
cartridges)
aUsingan expansion unit witha full 16-cartridge magazine.
bEachbase unit hasa full 10-cartridge magazine and two tape drives.
cUsinga data unit with full 16-cartridgemagazine.
dUpto 1.5 MB/secper drive.
eBasedon 20 GB/cartridge uncompressed. Itcould be up to 40 GB/cartridge compressed.
fUpto 5 MB/sec perdrive.
gBasedon 35 GB/cartridge uncompressed. Itcould be up to 70 GB/cartridge compressed.
Bymodifying the combinations of base units and data units, the performanceand total capacity can be adjusted to meet the customers’needs.8.11.1.4 DLT MiniLibrary Part NumbersTable 8–11 shows the partnumbers for the TL881 and TL891 DLTMiniLibrary systems. Part numbers are only shown for the TL881 fast,wide differential components.Table8–11: DLT MiniLibrary Part Numbers
DLTLibrary Component Number of Tape
Drives Tabletop/Rackmount PartNumber
TL881 DLT Library 1Tabletop 128667-B21
TL881 DLT Library 2Tabletop 128667-B22
TL881 DLT MiniLibrary
Base Unit 1Rackmount 128669-B21
TL881 DLT MiniLibrary
Base Unit 2Rackmount 128669-B22
Add-on DLT 20/40 drive
for TL881 1N/A 128671-B21
TL891 DLT Library 1Tabletop 120875-B21
TL891 DLT Library 2Tabletop 120875-B22
Configuring a Shared SCSI Bus for Tape Drive Use 8–51