1.1 Features

(7) Dust resistance

The optical disk unit provides low-power consumption, eliminating the need for a cooling fan. The top of the cartridge is sealed with film, and the bottom of the optical disk unit is sealed with sheet metal, providing protection that is not complicated.

The optical disk drive needs class 5 millions or less of the dust particles.

(8) Lower power consumption

The power consumption of the optical disk drive is 5.6 W (These power consumption values are typical values during read and write operation.) These drives do not use a fan.

The minimum power consumption is 0.7 W (typical value) during power save.

(9) Automatic spindle stop function

If access is not made within a certain time, this function stops disk rotation to minimize dust accumulation on the disk. This function can be set that time by the MODE SELECT command.

1.1.2 Reliability

(1) Mean time between failures (MTBF)

This drive features a 120,000 hour MTBF.

(2) Error recovery

For the error depending on the optical disk drive, recovery process is made by a suitable retry. This drive features Reed-Solomon error correction (ECC) to assure error-free operation.

(3) Automatic allocation of alternate data blocks

This drive features a function which automatically allocates alternate data blocks to defective data blocks detected while data is being read from or written to an optical disk.

1.1.3 Maintainability/operability

(1) Diagnostic function

This drive has a diagnostic function to check optical disk drive operations. The diagnostic function facilitates test and restoration.

(2) Five-year service life (no overhaul)

This drive will not require overhaul within the first five years of installation if appropriately handled, maintained, and cleaned as recommended.

C156-E205-01EN

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Fujitsu MCJ3230AP manual Reliability, Maintainability/operability