Yotta RAID Software installation guide - Axus

Software Operation ManualIf a source disk fails, what will controller do?Ans: If a source disk fails during the background copying operation, the cloning process will beaborted. And the controller will use the clone disk for data rebuilding.If a clone disk fails, what will controller do?Ans: If a clone disk fail, the clone disk will be taken off-line and select a spare disk as the newclone disk to start the background copying operation. If there is no spare disk or the spare diskwithout enough capacity, the controller will report warning messages.If member disk fail and with spare disk, what will controller do?Ans: If a disk besides the source disk in the same array fails, the controller will select a sparedisk for rebuilding data of the failed disk. But, if the failed disk is in different array, the state andthe operations of the clone disk are not affected.If member disk fail and without spare disk, what will controller do?Ans: If there is no spare disk for disk adding, a clone disk will be selected for the rebuilding. Thiscan ensure the array to return to optimal mode ASAP so as to avoid array failure. If there ismore than one clone disk, the controller will select the clone disk with the least copying progress.If all clone disks are in the mirroring state, the clone disk with the smallest disk number will beused.If an array fails, what will controller do?Ans; if an array with clone disks fails, the background copying tasks will be aborted, and theclone disks will become as spare disk.If there are unrecoverable bad blocks on source disk, what will controller do?Ans: If the data is unrecoverable, the copying task will write zero to the corresponding block onthe source disk.- 82 -