SimpleTech ZeusIOPS Manual descargar pdf (Pagina 22)

20 Zeus

IOPS

3.5-Inch Fibre Channel Solid State Drive

PERFORMANCE CHARACTERISTICS

ENDURANCE

The useful life of the flash media is limited by the number of write/erase operations that can be

performed on the media. To extend the life of the SSD, special Wear-Leveling and Bad-Block

Mapping algorithms are integrated into the firmware.

WEAR-LEVELING ALGORITHM

The dynamic wear-leveling algorithm guarantees that erase/write cycles are evenly distributed

across all the flash memory block locations. Wear-leveling eliminates repeated writes to the same

physical flash memory location, thereby preventing blocks from premature wear.

BAD-BLOCK MANAGEMENT

The bad-block management scheme will detect faulty blocks during operation. Bad blocks are

flagged in a defect list. Blocks within the defect list are excluded and are never used for data storage.

DATA RETENTION

Data stored on the SSD will remain valid for ten years without requiring power support. The unit can

be stored at under certain environmental conditions for extended periods without any occurrence of

data degradation.

ERROR DETECTION AND CORRECTION

The Error Detection Code and Error Correcting Code (EDC/ECC) algorithm helps maintain data

integrity by allowing single or multiple bit corrections to the data stored in the flash array. If the data

in the flash array is corrupted due to aging or during the programming process EDC/ECC will

compensate for the errors to ensure the delivery of accurate data to the host computer. The EDC/

ECC engine on the drive is capable of correcting 8 random or 12 sequential bytes in 1,024 bytes. The

possibility of undetected errors or incorrect correction is eliminated with additional CRC.

RELIABILITY

• DC power is maintained as specified in the product datasheet.

• Errors caused by host are excluded from rates.

• Errors from the same causes are counted as 1 block.

• Data stream is assumed random.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 109 110

Sin comentarios

SimpleTech ZeusIOPS Manual Pagina 22