What happens when you are left with a failed RAID system? Well, you need to look for RAID recovery solution. But before doing so, you need to note down certain information about the RAID array. RAID is basically a cluster of multiple physical discs being combined into one logical unit. As a result, most of the RAID arrays promise to offer users with perfect data redundancy while ensuring improved device performance.
If a failure takes place, the data recovery part would become more complicated than what you may expect. Here are 5 vital information that you would find helpful when it comes to RAID data recovery:
- Understanding the RAID type
You must understand the RAID type properly, especially the RAID level. Always keep in mind, different RAID arrays will feature different configuration along with unique working principles. Henceforth, it is extremely important to figure out the RAID type being used in this context.
- Focusing on the total number of failed member disks
RAID failure can happen because of a single disc or multiple discs. You need to focus on this part and find out the actual scenario. Before going through the data recovery process, you need to figure out the total number of discs that have failed in the RAID array. This is one of the most crucial parts of the process and would play a crucial role in the recovery process at a later stage.
- Learning about the order of disk arrangement
Learn about the order of discs being arranged in the RAID array. This is important because when you are trying to remove the drives from the RAID array, you will not be facing difficulty in figuring out the ones that have been malfunctioning. Also, if the drives are marked properly, then during the time of rearranging, the scenario would be least complicated.
- Causes of RAID Failure
Try to figure out what resulted in RAID failure. Understand whether the issue is physical or logical. It is recommended to prevent operating process until the RAID device is fully repaired.
- Gather idea about the block size
Block size helps in reflecting the expression of data in kilobytes or sectors. A single kilobyte equals to 2 sectors. This information would be helpful at the time of data recovery.
The advantages of using RAID devices are many. But always remember, these drives are also not flawless. Errors do happen and they also can fail to perform. More importantly, the array would involve multiple disks.