Fault Tolerance Features | Intel SASMF8I guide

Specification	Intel® RAID Controller SASMF8I
Maximum	26 elements
Scatter/Gathers

Maximum Size of I/O	6.4 Mbytes in 64 Kbyte stripes
Requests

Maximum Queue	As many as the drive can accept
Tags per Drive

Stripe Sizes	64 Kbyte

Maximum Number	255
of Concurrent
Commands

Support for Multiple	Yes
Initiators

Flexibility	Drive migration

Background Services	Rebuild, consistency check, and initialization

Cache Options	Write-back or write-through, read ahead, and non-read ahead

Fault Tolerance

Table 4 shows the RAID Controller SASMF8I fault tolerance features.

Specification	Intel® RAID Controller SASMF8I
Self Monitoring	Detects up to 70% of all predictable disk drive failures and monitors the
Analysis and Reporting	internal performance of all motors, heads, and drive electronics.
Technology (SMART)
support

Drive Replacement	Auto detection of hard drive failure; hot-plug, hot-swap. User set rebuild
	rate.

Drive Rebuild Using	Automatic at drive failure;auto-resume of initialization or rebuild on
Hot Spares	reboot

Error Checking and	Parity generation and checking, automatic consistency checking;
Indication	activity and fault LEDs

Power Conservation	Staggered spin-up, lower power requirements.

15	Intel® RAID Controller SASMF8I Hardware Guide