IBM TS4300 User Manual

Table 13. Performance parameters for full height drives
Ultrium Generation Media
Generation 9 media Generation 8 media Generation 7 media
Speed matching data rates
(MB/sec)
408 365.0 306.0
385 341.0 287.52
366 318.0 268.56
347 306.4 250.66
325 273.0 231.86
305 249.5 213.06
284 226.0 194.26
263 203.0 175.46
244 180.0 157.67
223 157.5 138.52
203 135.0 120.11
177 112.0 101.46
Table 14. Performance parameters for half height drives
Ultrium Generation Media
Generation 9 media Generation 8 media Generation 7 media
Speed matching data rates
(MB/sec)
284 306.4 306.0
263 273.0 287.52
244 249.5 268.56
223 226.0 250.66
203 203.0 231.86
177 180.0 213.06
- 157.5 194.26
- 135.0 175.46
- 112.0 157.67
- - 138.52
- - 120.11
- - 101.46
If the server's net (compressed) data rate is between two of the preceding native data rates, the drive
calculates the appropriate data rate at which to operate. Speed matching dramatically reduces backhitch,
the condition that occurs when a tape stops, reverses, and restarts motion. A backhitch is usually the
result of a mismatch between the data rates of the server and the drive.
IBM Condential
Chapter 1. Overview19

IBM TS4300 Specifications

General

Product Type	Tape Library
Form Factor	Rack-mountable
Host Interface	8 Gb Fibre Channel, 6 Gb SAS
Humidity	20% to 80% non-condensing
Number of Drives Supported	Up to 3
Drive Type Supported	LTO Ultrium 8, LTO Ultrium 7
Encryption	Yes
Remote Management	Yes (web-based interface)
Supported Media	LTO Ultrium 8, LTO Ultrium 7
Power Supply	100-240 VAC, 50/60 Hz