Chapter 5 Specifications
Mean Time Between Failures
LTO-2 Half-Height Tape Drive User’s Guide
43
Table 9 Reliability
Mean Time Between Failures
5
The mean time between failures (MTBF) for the internal drive is specified
at 250,000 hours minimum. This specification includes all power-on and
operational time but excludes maintenance periods. Operational time is
assumed to be 100 percent of the power-on time. Operational time is the
time the tape is loaded.
The MTBF for the desktop drive power supply is 50,000 hours with the
unit operated at full load and 25°C.
Specification
Description
Non-recoverable error rate
< 1 in 10
17
bits
Error recovery and control
• Error correction code techniques (C1
and C2 ECC)
• Read-after-write (RAW)
• Error monitoring and reporting (error
log)
• Retry on
Mean time between
failures (MTBF)
250,000 hours MTBF at 100% duty cycle:
power applied and tape moving
continuously
(Desktop drive; 50,000 hours at full load
and 25°C)
Cartridge load/unload
100,000 cartridge load/unload cycles (no
thread)
Mean time to replace
(MTTR)
Less than 30 minutes
Note:
The MTBF rating does not represent any particular drive, but
is derived from a large database of test samples. Actual rates
may vary from unit to unit.
Summary of Contents for ValueLoader LTO-2
Page 8: ...Figures viii LTO 2 Half Height Tape Drive User s Guide...
Page 10: ...Tables x LTO 2 Half Height Tape Drive User s Guide...
Page 40: ...Chapter 3 Operation Drive Maintenance 26 LTO 2 Half Height Tape Drive User s Guide...
Page 48: ...Chapter 4 Theory Data Compression 34 LTO 2 Half Height Tape Drive User s Guide...
