How to improve the RAID5 data recovery success rate

How to improve the RAID5 data recovery success rate!

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Experienced RAID data disaster is always the biggest headache for IT administrators, because the knowledge of the relevant recovery technology involves too wide, the ordinary administrator or server vendor engineers can not solve. Since RAID data disaster should not be handled by the administrator, the administrator at this point should be how to deal with it? We interviewed experienced data recovery engineers, he will tell you how to ensure higher recovery success rate.

Do not force on the line: a dangerous operation

In one of the server's hard disk fails, the the general server will have an Offline indicator prompts that require the user to replace an intact same hard disk and re-validation algorithm. Logically speaking, this is very normal operation, but does not know that a lot of RAID disaster is caused thereby. A number of hard drives, RAID5 disk array, for example, it may at the same time purchasing multiple hard drives, a few have emerged instability. Offline prompt and the server may not be the most accurate, often false positives (hard disk instability factors) or omission other also hidden hard drive. Appear to be normal mandatory on-line process, the hard drive the need for a large number of read and write operations, is a severe test: if you are lucky naturally smooth through bad luck will lead to other hard drive suddenly dropped, this when you make the problem more difficult. Of course, a hard disk dropped prompt appears, or dropped in within the range of fault-tolerant RAID prompt mandatory on-line or operation must be performed. However, before performing this step, it is strongly recommended to check the stability of a hard disk, so that it is more insurance. We can not ignore such a small detail, often this step allows the the RAID server did not have escaped paralysis.

The protection of the first scene: doing nothing most secure

For manufacturers, all warranty commitments confined to a hardware device that is triggered after the failure of the disk array data crisis with which there is no relationship, is responsible for the user to replace or repair is considered a "due diligence". However, the user does not need to retrieve hard drive or rebuild RAID, but more valuable data. If you find the machine manufacturers, is tantamount to "asking for trouble" because of the so-called after-sales service is no demand from the user's origin as soon as possible to ensure the hardware intact but at the expense of data. Of course, a well-known brand of server manufacturers or agents will take the initiative to choose the customers RAID data recovery service charge to the bill, but this was only to the individual circumstances. According to the engineer in charge of the data recovery center, the final data is completely destroyed, find service provider of after-sales service engineers repair case occurs almost every week. After all, the basic sales service engineers are biased in favor of hardware, RAID data recovery is based on software like operating. Moreover, even a simple inspection operation, is also possible for the latter part of the data recovery inconvenience. Ordinary RAID5 recovery, for example, must be damage to the hard disk when the hard disk is damaged more than a fault tolerant mirror completely extracted to the ultimate recovery. Frequent hard disk power, it is likely to cause further fatigue damage of the head even scratch the disc. The correct approach should immediately consult a professional data recovery service providers.

PS : If the above does not work , do not do irreversible operation should find a professional data recovery personnel or data recovery company to help otherwise cause data unrecoverable loss .

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How to improve the RAID5 data recovery success rate!

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