RAID Recovery™ Recovers all types of corrupted RAID arrays
RAID Recovery™
Recovers all types of corrupted RAID arrays

Minimum Disks That Are Needed for RAID Arrays

Here you will find out:

  • minimum disks that are needed for RAID
  • when you need DiskInternals

Are you ready? Let's read!

Minimum disks that are needed for RAID


Minimum disks that are needed for RAID

Each level of arrays must have a certain number of disks in order to function as a single unit.

Let's talk about the most common RAID types.

The minimum disks that are needed for RAID 0, RAID 1, RAID 5, and RAID 10:


  • In order to create RAID 0, you only need at least two disks. Since this type of array does not have fault tolerance, it should be used in areas where the data is constantly updated and does not have strategic importance, but at the same time requires high performance.
  • RAID 1 also requires a minimum of two disks, but at the same time this array is fault-tolerant and has normal performance. In this regard, RAID 1 can be easily applied to data with high secrecy and importance.
  • RAID 5 can start functioning when there are 3 disks, while in theory the maximum number of disks can be unlimited. This type of array is the most common due to its positive properties. For example, RAID 5 can resist the failure of an entire drive without losing a single file.
  • For RAID 10 and 01 (this is the same), the minimum number of disks is four. This may be highly costly, so it is often only used for corporate purposes in large enterprises. The array uses mirroring with simultaneous distribution of data across each set of disks. This achieves a significant increase in the performance and fault tolerance of RAID 10.

RAID 0, 1, 5, 10 data safety with RAID Recovery

Sometimes DiskInternals Uneraser, Linux Reader, or Partition Recovery may be enough to recover RAID 1 data, but DiskInternals RAID Recovery will be better. It depends a lot on which file system you are using.

RAID 0 can be perfectly restored with DiskInternals RAID Recovery but DiskInternals Uneraser or Partition Recovery also can be recommended.

For restoring other arrays, DiskInternals RAID Recovery is best.

RAID Recovery automatically finds the array, and also checks the current state of the RAID array, file system, controller, and disks, and restores files where possible. Also, the application is equipped with a Recovery Wizard so that the process is simpler and more understandable. After scanning, you will be able to view the data found for free, and then decide whether you need to buy a license to export this data or not. However, after seeing the stunning search results and the quality of the recovery, you are unlikely to have doubts about the appropriateness of doing so.

Instructions for data recovery using DiskInternals RAID Recovery are below:

Download and install the application on your laptop or PC.

As soon as the application is open, the Wizard starts; it will automatically recognize the array, controller, etc.

Next, you need to select the desired RAID. After that, select the scanning mode (full or surface).

Then wait for the results and view each file found for free.

After that, purchase a license, enter the key and export the data.

You choose the place for export yourself, but make sure that it is connected to the computer. Good luck!

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