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Intel® RAID Controller SRCSATAWB Hardware User’s Guide 12
Array Performance Features
Fault Tolerance
Host data transfer rate 2.5 Gigabit/s per PCI Express* lane
Drive data transfer rate 3 Gigabit/s per lane
Maximum scatter / gather 26 elements
Maximum size of I/O requests 6.4 Mbytes in 64 Kbyte stripes
Max queue tags per drive As many as the drive can accept
Stripe sizes 8, 16, 32, 64, 128, 256, 512 or 1024 KB
Max concurrent commands 255
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, and Patrol Read
Cache options Write-back or Write-through Read Ahead, Adaptive Read
Ahead, NonRead Ahead, Cache I/O or Direct I/O
Self Monitoring Analysis and
Reporting Technology (SMART)
support
Detects up to 70% of predictable disk drive failures and
monitors the internal performance of all motors, heads,
and drive electronics.
Optional Battery Backup Intel
®
RAID Smart Battery AXXRSBBU4 cache backup.
Up to 72 hours of data retention. “Gas Gauge".
Drive Replacement Auto detection of failure, hot plug, hot swap.
Drive Rebuild Using Hot Spares Automatic at fail: Dedicated per Array; Global for any
array; Auto-resume of initialization or rebuild on reboot
Error Checking and Indication Parity generation and checking, automatic consistency
checking; patrol reads; activity and fault LEDs, alarm;
multiple retries; logs in NVRAM, event log, CIM, Smart,
Intel
®
RAID Web Console 2