Seagate STD1401LW, Руководство по эксплуатации продукта

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Specifications 13
Mean Time Between Failures
The mean time between failures (MTBF) is specified at 412,000 hours minimum.
This specification includes all power-on and operational time but excludes
maintenance periods. Operational time is assumed to be 20 percent of the power-on
time. Operational time is the time the tape is loaded on the cylinder (tape moving
and/or cylinder rotating).
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.
Mean Time to Repair
The mean time to repair (MTTR) is the average time required by a qualified service
technician to diagnose a defective drive and to install a replacement drive. The
MTTR for DAT products is less than 0.5 hour (30 minutes).
The Seagate DDS drives are field-replaceable units. If a problem occurs with a
subassembly or component in the drive, you should replace the entire unit. Return
the drive to the factory in its original packaging. Contact your distributor, dealer, your
computer system company or your Seagate sales representative to arrange the
return.
DDS Cartridge Specifications
DDS drives provide maximum data integrity and reliability when Seagate-qualified
DDS cartridges are used as the recording media. Seagate maintains an ongoing
program to qualify manufacturers of DDS cartridges.
The following cartridges are recommended:
•
DDS-2 data cartridge: model STDM8, 120-meter tape (for DDS only)
•
DDS-3 data cartridge: model STDM24, 125-meter tape (for DDS only; read-only
for DAT 72)
•
DDS-4 data cartridge: model STMD40, 150-meter tape
•
DAT 72 data cartridge: model CDM72, 170-meter tape
•
DDS cleaning cartridge: model STDMCL or CDMCL
Contact your Seagate sales representative for information on qualified DDS data and
cleaning cartridge manufacturers and models.