Adaptec 2020SA User Guide - Page 163
drive LED, event, event log, event notification, failed, failed partition, failover drive
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Glossary drive LED Indicator light that illuminates during read or write operations. E event Notification or alert from the system, indicating that a change has occurred. event log File used to maintain information about prior controller activities or errors. event notification Process for transmitting events. F failed State of a nonredundant array that has suffered a single drive failure, or a redundant array that has suffered multiple drive failures. A failed array is inaccessible and data is lost. failed partition A partition that is no longer usable by an array because it is either logically bad and therefore no longer needed, or physically damaged. failover drive See hotspare. fault-tolerant array Refers to an array that can continue to function after a disk drive failure without loss of data. See also redundant. foreign disk Disk that has previously been initialized on another Adaptec RAID controller. The RAID signature on the disk allows the RAID controller to identify whether or not the disk was initialized on the controller it is currently connected to. Glossary-4