Intel SRCSASRB Hardware User Guide - Page 8

Redundancy and Error Handling, Failures are logged in NVRAM, viewable from OS Event Log, Intel - performance

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• Advanced Array configuration and Management Utilities provides: - Online Capacity Expansion (OCE) adds space to existing drive or new drive. See Appendix A for limitations on OCE and RAID migration. - Online RAID level migration (upgrade of RAID mode, may require OCE). - Drive migration. - Drive roaming. - No reboot necessary after expansion. • Upgradeable Flash ROM interface. • Allows for staggered spin up, hot-plug, and lower power consumption. • User specified rebuild rate (percent of system resources to use from 0-100%). Caution: Exceeding 50% rate may cause operating system errors due to waiting for controller access. • Background operating mode can be set for Rebuilds, Consistency Checks, Initialization (auto restarting Consistency Check on redundant volumes); Migration, OCE, and Patrol Read. Redundancy and Error Handling • In-band and out-of-band SES2. • Enclosure management support. • Fault indicators per drive. • Drive coercion (auto-resizing to match existing disks). • Auto-detection of failed drives with transparent rebuild. There must be disk activity (I/O to the drive) for a missing drive to be marked as failed. • Auto-resume on reboot of initialization or rebuild (must be enabled before virtual disk creation). • Smart initialization automatically checks consistency of virtual disks if there are five or more disks in a RAID 5 array, which optimizes performance by enabling readmodify-write mode. RAID 5 arrays of only three or four drives use Peer Read mode. • Dirty cache LED plus error reporting for cache write to disk. • Smart Technology predicts failures of drives and electronic components. • Patrol Read checks drives and maps bad sectors. • Commands are retried at least four times. • Firmware provides best effort to recognize an error and recover if possible. • Failures are logged from controller and drive firmware, and SMART monitor. • Failures are logged in NVRAM, viewable from OS Event Log, Intel® RAID Web Console 2; CIM, LEDs, and via alarm. 3 Intel® RAID Controller SRCSASRB Hardware User's Guide

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3
Intel® RAID Controller SRCSASRB Hardware User’s Guide
•
Advanced Array configuration and Management Utilities provides:
—
Online Capacity Expansion (OCE) adds space to existing drive or new drive.
See Appendix A for limitations on OCE and RAID migration.
—
Online RAID level migration (upgrade of RAID mode, may require OCE).
—
Drive migration.
—
Drive roaming.
—
No reboot necessary after expansion.
•
Upgradeable Flash ROM interface.
•
Allows for staggered spin up, hot-plug, and lower power consumption.
•
User specified rebuild rate (percent of system resources to use from 0-100%).
Caution:
Exceeding 50% rate may cause operating system errors due to waiting for
controller access.
•
Background operating mode can be set for Rebuilds, Consistency Checks,
Initialization (auto restarting Consistency Check on redundant volumes); Migration,
OCE, and Patrol Read.
Redundancy and Error Handling
•
In-band and out-of-band SES2.
•
Enclosure management support.
•
Fault indicators per drive.
•
Drive coercion (auto-resizing to match existing disks).
•
Auto-detection of failed drives with transparent rebuild. There must be disk activity
(I/O to the drive) for a missing drive to be marked as failed.
•
Auto-resume on reboot of initialization or rebuild (must be enabled before virtual
disk creation).
•
Smart initialization automatically checks consistency of virtual disks if there are five
or more disks in a RAID 5 array, which optimizes performance by enabling read-
modify-write mode. RAID 5 arrays of only three or four drives use Peer Read mode.
•
Dirty cache LED plus error reporting for cache write to disk.
•
Smart Technology predicts failures of drives and electronic components.
•
Patrol Read checks drives and maps bad sectors.
•
Commands are retried at least four times.
•
Firmware provides best effort to recognize an error and recover if possible.
•
Failures are logged from controller and drive firmware, and SMART monitor.
•
Failures are logged in NVRAM, viewable from OS Event Log, Intel
®
RAID Web
Console 2; CIM, LEDs, and via alarm.