Intel RT3WB080, Hardware User'S Manual

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Intel® RAID Controller RT3WB080 Hardware User’s Guide 15
Array Performance Features
Table 3. Array Performance Features
Enclosure support Assumes one SEP per enclosure
Specification Intel
®
RAID Controller RT3WB080
Specification Intel
®
RAID Controller RT3WB080
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
Stripe sizes 8, 16, 32, 64, 128, 256, 512, or 1024 KB
Maximum concurrent
commands 1024-16
Support for multiple initiators Yes
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-back or Write-through
•
Read Ahead, Adaptive Read Ahead, or Non-Read Ahead
•
Cache I/O or Direct I/O