Raid 1 data recovery
RAID 1 (Redundant Array of Independent Disks) is a method of organizing data storage on several hard disks in order to ensure fault tolerance and the ability to restore information when one or more disks fail.
If one of the RAID 1 drives stops functioning, the data is still available on the second mirrored drive. Restoring data can be a fairly simple process:
Step 1: Replacing the damaged/non-functional disk
If you have a spare hard drive to replace a damaged/non-working one, the first step is to connect it to the system. Refer to the user manual of your motherboard or RAID controller for instructions on how to properly install the new drive.
Step 2: Reconstruction of the array
When connecting a new hard disk, the operating system should automatically identify it as a member of the RAID array and start the data reconstruction process. This may require time, especially if the volume of data is large.
Pay attention! Never format or overwrite data on a damaged RAID 1 drive until the reconstruction process is complete. This can lead to the loss of all your data.
Step 3: Verification and integrity check
After the successful completion of the array reconstruction process, it is necessary to make sure that the data were correctly copied from the replacement disk to the new one. To do this, you can use special programs to check the integrity of the file system (for example, chkdsk for Windows).
It is important to note that RAID 1 only provides protection against the failure of one hard disk. If two or more drives become unusable at the same time or for some other reason an error occurs when writing/reading data from the entire array, then restoring information can be a difficult task and requires the help of specialized service companies.
Regular creation of reserves