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Raid 5 Recovery Guide

Raid 5 Data Recovery Information by Raid5-Recovery.com

Raid 5 Recovery

Raid 5 is the raid level which stripes its data and parity across the disks; hence, all disks carry both data and parity information. Raid level 5 can be formed with a minimum of 3 disks. It is fault tolerant and can withstand the failure of one disk in an array. This essentially means that there would be no loss of data if a single disk failure occurs. Though, more than one disk failure certainly requires Raid 5 recovery.

Raid 5 Failure

Raid 5 failure occurs due to a variety of reasons. Controller, rebuild or disk failure are some of the common reasons behind it. Other reasons could be bad sectors, missing partitions, disk failure or server crash, which would call for raid recovery.

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Raid 5 Data Recovery

Raid 5 data recovery can be done by copious software available in the market only if the failure is in the logical disk array. Such a recovery can also be done online. This can be easily established by the various raid data recovery companies. You will require only a stable internet connection and a standard operating system in a computer where you have an administrator’s account. By online recovering raid 5, the technician does not have to be present in person and remotely takes control of the situation and your computer, too.

In case of disk failures, raid 5 data recovery takes place in the recovery laboratories. When only a single disk fails, the data in the other disks are read and XOR operation is performed on it to recover the lost data. But when two or more hard disks get corrupted, the recovery process gets a little difficult. There are a large number of raid 5 data laboratories where such recoveries are performed by expert technicians.

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Backup Raid 5 Arrays

When there is a raid error, shut down the server or there is a high chance of the parity data getting overwritten. From the array, all the disks should be carefully removed and then properly labeled. Recovery is not an easy job and only experienced engineers/technicians should be entrusted with this responsibility.

Just to ensure that no data gets lost in a raid it is advisable to use a raid disk array with less than 14 disks. If there are too many disk failures, the array rebuilding process will become very slow that would mean that data could be lost permanently. An array with less than 14 disks is less complex and raid 5 data recovery becomes much easier.

Read further about how to backup Raid 5.