Intel SASMF8I manual Fault Tolerance Features

Table 3. Array Performance Features

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.

Table 4. 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