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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

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