Once your RAID system fails, the next step is to attempt RAID recovery. In this case, first of all, you should write down some vital information about your RAID array. In this article, we’ll show you 6 important types of information in RAID data recovery.
RAID means redundant array of independent disks. It’s able to combine multiple physical disks into one logical unit. Therefore, most of RAID arrays can provide users with data redundancy as well as improve the device performance.
Due to so many advantages of RAID technology, both individuals and businesses have favored it. It has been increasingly widely used in recent years. However, it’s not flawless. It still can fail as well. Plus, since the array involves multiple disks, if failure occurs to the array, data recovery will be much more complicated than the common file recovery, such as PST repair. Generally, in RAID data recovery, there are some essential kinds of information. Thereinafter, we will list out 6 of them.
1. RAID Type
Of course, the RAID type, namely RAID level, is one of the significant information in RAID data recovery. Different types of RAID arrays have different configuration as well as distinct working principles. Therefore, you should figure out the type of your RAID.
2. Number of Failed Member Disks
Perhaps you have known the number of hard disks configured in your RAID array. Plus, before RAID data recovery, you have to get the correct number of disks that have failed in your RAID array. It is one of the key data in RAID recovery as it will affect many aspects of latter recovery processes.
3. Disk Order
Do you know the order of the drives in your array? It is considerably important. Usually, when removing drives from the array, you had better label them to write down the disk order. In addition, even though the drive fails, it’s still suggested to keep them.
4. Block Size
So-called block size reflects the expression of data in the sectors or kilobytes. As usual, one kilobyte is equal to two sectors. You should not confuse the units. This kind of information will play a great and essential role in RAID data recovery. So, it will be much better if you can get the block size.
5. Start Offset for Data on Member Disks
Moreover, you have to get the start offset for the data on the member disks. But in fact, many RAID controllers would not offer this information. At best, you can get this information. If you can’t, don’t worry as related RAID data recovery software or professional still can achieve this without any hassles.
6. Causes of RAID Failure
Last but not least, you should figure out the real causes of your RAID failures, Is it a logical issue or physical damage? Prevent operating on the failed RAID array if you still cannot find out the causes. Under that circumstance, you’d better consult with specialists, avoiding further damage your drives and array.
Shirley Zhang is a data recovery expert in DataNumen, Inc., which is the world leader in data recovery technologies, including mdf repair and outlook repair software products. For more information visit www.datanumen.com