Performance Parameters For Full Height Drives; Performance Parameters For Half Height Drives - IBM TS4300 User Manual

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Table 13. Performance parameters for full height drives
Speed matching data rates
(MB/sec)
Table 14. Performance parameters for half height drives
Speed matching data rates
(MB/sec)
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.
Ultrium Generation Media
Generation 9 media Generation 8 media
408
385
366
347
325
305
284
263
244
223
203
177
Ultrium Generation Media
Generation 9 media Generation 8 media
284
263
244
223
203
177
-
-
-
-
-
-
Generation 7 media
365.0 306.0
341.0 287.52
318.0 268.56
306.4 250.66
273.0 231.86
249.5 213.06
226.0 194.26
203.0 175.46
180.0 157.67
157.5 138.52
135.0 120.11
112.0 101.46
Generation 7 media
306.4 306.0
273.0 287.52
249.5 268.56
226.0 250.66
203.0 231.86
180.0 213.06
157.5 194.26
135.0 175.46
112.0 157.67
- 138.52
- 120.11
- 101.46
Chapter 1. Overview 19