Hardware User's Guide

16 Intel® RAID Controller RS2VB080/RS2VB040 Hardware User’s Guide
Fault Tolerance
Table 4. Fault Tolerance Features
Maximum queue tags per
drive
As many as the drive can accept
Stripe sizes 8, 16, 32, 64, 128, 256, 512, or 1024 KB
Maximum concurrent
commands
1024-16
Support for multiple initiators Ye s
Performance Native command queuing
Flexibility • Drive migration
• RAID level migration
• Drive Roaming
• Online Capacity Expansion - without reboot
Background services • Rebuild
• Consistency Check
• Migration
• OCE
• Patrol Read
Cache options • Write-back or Write-through
• Read Ahead, Adaptive Read Ahead, or Non-Read Ahead
• Cache I/O or Direct I/O
Specification Intel
®
RAID Controller RS2VB080/RS2VB040
Specification Intel® RAID Controller RS2VB080/RS2VB040
Self Monitoring Analysis and
Reporting Technology (SMART)
support
• Detects up to 70% of predictable disk drive failures
• Monitors the internal performance of all motors,
heads, and drive electronics.
Optional Battery Backup • SuperCap module shipped with the card
• 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.