Redundant Array of Inexpensive Disks (RAID) is an advanced level of technology that disseminates data across various disks and therefore reduces the risk of data loss. There are various raid levels such as RAID0, RAID1, RAID2, RAID4, RAID5 and RAID6.
RAID6 also distributes data across various disks. It has a high performance among read operations but quite low among write operations. RAID6 is an extension of RAID5 and has high fault tolerance but it has very complex controller design. It performs two different types of parity calculations. In case of single disk failure, other disks still work and thus entire data is not inaccessible, unlike the case of RAID0. This means that it provides redundancy but the data transfer rate is very slow. It has the highest reliability among all other RAID levels. When we talk about parity stripes, it means that under RAID6, the two parity stripes allow for two disk failures because it combines a minimum of four or more disks. RAID6 is applicable in SATA and IED devices. It is appropriate for small and medium sized databases. Because of its high costs, only few companies prefer RAID6 and rather opt for RAID5 array. RAID6 is less preferred in comparison to RAID5 because of its poor writing performance. It has still not gained wide acceptance among people because of the two prime reasons discussed, poor write capability and a very high cost.
RAID6 recovery is a tricky task and it is important to appoint experts and professionals for recovery services. Raid recovery is different from other forms of hard drive recovery and therefore it is imperative to consult good raid recovery companies. These professionals will diagnose the cause of failure and then follow certain steps that can help in data recovery. There are various good raid recovery companies that deliver excellent services. Many among them also provide online recovery services and trial demos so that you can understand better. They also promise money back in the event of being unsuccessful in retrieval of data. You should always consult them to avoid further damages and losses. There are a majority among us who avoid calling these recovery agents because we do not want to expend huge costs on their services. But it is the biggest mistake that we can commit because if we tend to take the responsibility of carrying a crucial task like this on our own, then we are certainly heading towards even more complicated situations and that loss will be manifold. Therefore in the event of RAID6 recovery, always take the help of professionals.
RAID recovery is a task that requires diagnosis and there are certain steps and procedures that are followed by experts. Many among us think that it is related to ordinary data recovery and can be carried out easily at home. This is absolutely incorrect. If you detect the symptoms of RAID6 failure, then do not try to restart the system again and again and do not try to experiment with it. Just consult qualified engineers and certified companies and your work will be simplified. Moreover, awareness about raid failure and recovery tools and following preventive measures can also help you to a great level.
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