Spectra T50e - Page 507

Appendix C—Specifications Tape Drive and Media Specifications
August 2017 User Guide—Spectra T50e Library
502
LTO -4 D rive
WhenconnectingtoaFibreChannelnetwork,LTO‐4FibreChanneldrives
attempttoconnectat4Gb/second,butauto‐negotiatedownto
2Gb/secondor1Gb/second,dependingontherequirementsofth eportto
whichthedriveisconnected.
LTO -3 D rives
Note: LTO‐3drivearenolongeravailableforpurchase.
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 does 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
Parameter Specification
Sustainedtransferrate
a,b
a. Compression throughput depends on the type of data.
b. This is a per-drive value.
80MB/secondnative
160MB/secondcompressed
Averagefileaccesstime 54seconds
Encryptioncapability No
WORMcapability Yes
MTBF 250,000hoursat100%dutycycle
Uncorrectederrorrate 1x10
–17
bits
Powerconsumption
b
28wattstypical