Frequently Asked Questions

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Question

Can a RAID storage system continue to operate, storing & retrieving data, if one of its drives fails?

Answer

Yes, as long as the RAID system is configured for RAID 1, 5, 6, or 10 operation. In fact, if RAID 6 is employed, the storage system will continue to operate (without data loss) even if two of its drives fail. Note that it is important to replace failed drives as soon as possible in order to restore data protection. Note that if more than one drive fails in a RAID 5 system, all of the data on it will be lost. If more than two drives fail in a RAID 6 system, all of the data will be lost. Therefore, it is vital that failed drives be replaced right away. In most cases, whether you select a RAID 1, 5, 6, or 10 configuration, the storage system and its data can still be accessed – even while replacing failed drives.


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