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Test Conditions
The MTBF value for the tape drive is determined under the following
conditions:
MTBF is specified for a maximum duty cycle of 10%, where duty
cycle is defined as:
Duty Cycle =
Total Hours of Mechanical Operation
100%
Total Power-on Hours
The tape drives are tested at the following ambient temperature
and relative humidity:
•
23° C ± 2° C
•
50% relative humidity ± 10% (non-condensing)
The tape drives are operated in accordance with operating
specifications.
Conditions for the MTBF Value
Conditions under which the specifications for MTBF apply are as
follows:
The EXATAPE data cartridges used must comply with Standard
ECMA-145.
Environmental conditions for the tape drive and the 8mm data
cartridges must be maintained as specified in the “Environmental
Specifications” section of this chapter.
The tape drive must be cleaned with an Exabyte or an
Exabyte-approved cleaning cartridge using the recommended
cleaning procedure. Refer to EXB-8205 and EXB-8505 Installation
and Operation for instructions.
6-8 EXB-8205 and EXB-8505 510504
(Standard and XL)
6 Functional Specifications