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Intel® RAID Controller SASMF8I Hardware User’s Guide 13
Array Performance Features
Table 3 lists the Intel
®
RAID Controller SASMF8I array performance features.
Fault Tolerance
Table 4 lists the Intel
®
RAID Controller SASMF8I fault tolerance features.
Table 3. Array Performance Features
Specification Intel
®
RAID Controller SASMF8I
PCI Express* Host
Data Transfer Rate
2.5 Gigabit/s per lane
Drive Data Transfer
Rate
3 Gigabit/s per lane
Maximum
Scatter/Gathers
26 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 64 Kbyte
Maximum Number of
Concurrent
Commands
255
Support for Multiple
Initiators
Yes
Flexibility Drive migration
Background Services Rebuild, consistency check, and initialization
Cache Options Write-back or write-through, read ahead, and non-read ahead
Table 4. Fault Tolerance Features
Specification Intel
®
RAID Controller SASMF8I
Self Monitoring
Analysis and Reporting
Technology (SMART)
support
Detects up to 70% of all predictable disk drive failures and monitors the
internal performance of all motors, heads, and drive electronics.
Drive Replacement
• Auto detection of hard drive failure
• Hot-plug, hot-swap
• User set rebuild rate