Intel SRCSASBB8I Hardware User Guide - Page 9
Redundancy and Error Handling, Failures are logged in NVRAM, viewable from OS Event Log, Intel - firmware
UPC - 735858201346
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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. Intel® RAID Controller SRCSASBB8I Hardware User's Guide 3