Appendix C — Specifications Tape Drive and Media Specifications
December 2019 User Guide—Spectra T200, T380, and T680 Libraries
545
LTO -4 Dri ve
When connecting to a Fibre Channel network, LTO-4 Fibre Channel drives
will attempt to connect at 4 Gb/second, but will auto-negotiate down to
2 Gb/second or 1 Gb/second, depending on the requirements of the port to
which the drive is connected.
TS11xx Technology Tape Drive Specifications
This section provides specifications for the TS11xx technology drives.
When connecting to a Fibre Channel network, TS11xx technology Fibre
Channel drives attempt to connect at 8 Gb/second, but auto-negotiate
down to 4 Gb/second, 2 Gb/second, or 1 Gb/second, depending on the
requirements of the port to which the drive is connected.
Note: The specifications in this section are provided for convenience
only. Refer to the tape drive documentation for the most current
specifications (see
TS11xx Technology Drives on page 20).
Parameter Specification
Sustained transfer rate
a, b
a. Assuming a 2:1 compression ratio. Compression throughput depends on the type of data.
b. This is a per-drive value.
120 MB/second native
c
240 MB/second compressed
c. A 1 Gb interface speed will not stream an LTO-4 drive at 120 MB/second.
Average space record time 70 seconds
Encryption capability AES 256-bit
WORM capability Yes
MTBF 250,000 hours at 100% duty cycle
Uncorrected error rate 1 x 10
–17
bits
Power consumption -
Fibre Channel
b
Read/write: 29.5 watts typical
Idle: 12.5 watts
Power consumption -
SCSI
b
Read/write: 26.5 watts typical
Idle: 9.5 watts
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