Hardware User's Guide

Intel® RAID Controller RS2BWC080 Hardware User’s Guide 15
Array Performance Features
Table 3. Array Performance Features
Specification Intel
®
RAID Controller RS2WC080
Host data transfer rate Up to 5.0 Gb/s per PCI Express* lane
Drive data transfer rate Up to 6.0 Gb/s per phy
Maximum scatter / gather 80 elements
Maximum size of I/O requests 6.4 Mbytes in 64 Kbyte stripes
Maximum queue tags per
drive
As many as the drive can accept
Strip sizes 8, 16, 32, or 64 KB
Maximum concurrent
commands
1024-16
Support for multiple initiators Ye s
Performance Native command queuing
Flexibility • Drive migration
• RAID level migration
• Drive Roaming
• Online Capacity Expansion - without reboot
Background services • Rebuild
• Consistency Check
• Migration
• OCE
• Patrol Read
Cache options • Write-through
• Normal Read
• Direct I/O