Intel RS3DC040 Guide de l'utilisateur télécharger pdf (Page 39)

12Gb/s Intel® RAID Controllers User Guide 29

Array Performance Features

The following table shows the array performance features for the 12Gb/s Intel

RAID

Controllers.

Table 8. Array Performance Features

Fault Tolerance

The following table lists the fault tolerance features for the 12Gb/s Intel

RAID

Controllers.

PCI Express bus data transfer rate • Up to 8GT/s per lane

• x8 lane width

Serial port 4-pin RS232-compatible connector (for manufacturing use

only)

SAS bus speed 12Gb/s

SAS ports SAS connectors with four SAS ports each

Cache configuration The Intel

RAID Controller RS3DC0x0 supports the

following cache configuration:

1 GB – 72b arrangement (5) 128Mbx16, Double Data Rate

III (DDR3) @ 1866 MHz with Intel

RAID Maintenance Free

Backup support.

Size of flash ROM for firmware 16 MB

NVRAM 32 KB for storing RAID configurations

Specification

Intel

RAID Controller

RS3WC080, RS3DC040, and RS3DC080

Specification

Intel

RAID Controller

RS3WC080, RS3DC040, and RS3DC080

PCI Express host data transfer rate 8GT/s per lane

Drive data transfer rate 12Gb/s per lane

Maximum scatter/gather I/O 80 elements

Maximum size of I/O requests 6.4 MB in 64-KB strips

Maximum queue tags per drive As many as the drive can accept

Strip sizes 8 KB, 16 KB, 32 KB, 64 KB, 128 KB, 256 KB,

512 KB, or 1 MB

Maximum number of concurrent commands 255

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Intel RS3DC040 Guide de l'utilisateur Page 39