Fault Tolerance; Electrical Characteristics; Table 10. Fault Tolerance Features - Intel RS25DB080 Hardware User's Manual

Cache options

Fault Tolerance

Self Monitoring Analysis and
Reporting Technology (SMART)
support
Optional Battery Backup
Drive Replacement
Drive Rebuild Using Hot Spares
Error Checking and Indication

Electrical Characteristics

All power is supplied to the adapter via the PCI Express 3.3V and 12V rail. Necessary
Voltages are provided by onboard switching regulator circuitry operating off of 12V and
3.3V rails.
The following states determine the typical current consumption of the board:
•
State 1. During BBU fast charge
•
State 2. During initialization of all RAID 5 logical drives simultaneously
26
Specification

Table 10. Fault Tolerance Features

Specification
®
Intel RAID Controller RS25DB080
•
Write-back or Write-through
•
Read Ahead
•
Adaptive Read Ahead
•
Non Read Ahead
•
Cache I/O or Direct I/O
•
Disk Cache
®
Intel RAID Controller RS25DB080
•
Detects up to 70% of predictable disk drive failures
•
Monitors the internal performance of all motors, heads,
and drive electronics.
®
•
Intel RAID Smart Battery AXXRSBBU9 cache backup
•
Up to 48 hours of data retention, 'Gas Gauge'
•
Auto detection of failure
•
Hot-plug
•
Hot-swap
•
Automatic at fail
•
Dedicated per Array
•
Global for any array
•
Auto-resume of initialization or rebuild on reboot
•
Parity generation and checking, automatic consistency
checking
•
Patrol reads
•
Activity and fault LEDs
•
Multiple retries
•
Logs in NVRAM, event log, CIM, Smart, Intel
Web Console 2
Intel® RAID Controller RS25DB080 Hardware User's Guide
®
RAID