RAID5 how data should be recovered after a failure

Most people, based on RAID5, also have strong fault tolerance, so they tend to pay less attention to data backup, which results in data loss in the event of a raid failure. So, in the absence of a backup, if the RAID5 fails, how can we recover the data? The next step is to explain how to recover data lost after a RAID5 failure.

RAID5 There may be many reasons for failure, RAID controller failure, sudden power loss caused by the RAID information error, there may be RAID5 a hard disk error, not timely replacement, wait until the second hard drive error, resulting in RAID5 failure. RAID5 hardware failure occurs only with professional data recovery companies, and in other cases, as long as the method is mastered, the data can be retrieved.

Method steps:

First step: Make a full backup of a single disk. Preparation: Make a "full backup" of each hard drive, and make the "all-in-one" of each drive a separate file, click "Copy entire Disk" in the Winhex toolbar, open the file with Winhex and "interpret image file as disk operation" for each file, So the image file becomes disk.

The second step: search for the DBR sector, and the BR sector preserves a lot of important data. The starting sector of the hard RAID5 is always sector No. 0, and we start looking for the DBR sector of the array from sector NO. 0. Using the Winhex Search menu, select "Find 16 binary values" and fill in the parameters in the search box by the information shown.

Step three: Determine the file record and check block according to the DBR parameters.

Fourth step: The first check block of all disks is determined after the parameter is drawn.

Fifth step: Through the above data, determine the direction of P fast.

The above is for their own operation can be recovered RAID5 data loss method, then in the event of hardware failure, how should we deal with it? In the event of a hardware failure, the technical equipment is limited, the individual is unable to retrieve the lost data. At this time should be recourse to professional data recovery company, recommended here Shanghai Day Shield Data Recovery Center, the raid data recovery has more than 10 years of recovery experience, in the earliest data recovery companies in the country, with advanced equipment and strong professional team of engineers, has accumulated rich experience, Solve the data recovery instance countless, has been in the vast number of customers have a good reputation. Therefore, in the face of data recovery problems, the choice of Shanghai Day Shield Data Recovery Center is a good choice for everyone.

RAID5 how data should be recovered after a failure