Intel 12Gb/s, Руководство пользователя

Страница: 39 / 46

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