TYAN THUNDER LE-T User Manual page 44

Three possible conditions will be displayed under 'STATUS':
Functional - The array is operational
Critical - A mirrored array contains a drive that has failed or disconnected. The remaining drive
member in the array is functional. However, the array has temporarily lost its ability to provide fault
tolerance. The user should identify the failed drive through the FastBuild Setup Utility, and then
replace the problem drive.
Offline - A mirrored array has 2 drives that have failed/disconnected or a striped array has 12
drive that has failed or been disconnected. When the array condition is "offline", the user must
replace the failed drive(s), and then restore the data from a backup source.
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