RAID 1 Reliability: All What You Wanted to Know
Here you will find out:
- what is RAID 1
- what are RAID 1 reliability
- how DiskInternals can help you
Are you ready? Let's read!
About RAID 1
RAID 1 is a mirrored disk array that can exist with at least two disks.
Moreover, these two disks are full copies of each other. This version of the array provides a more or less normal write speed, but a superior read speed. The main feature of RAID 1 is maximum reliability: the array will function as long as at least one disk in the array is working.
Reliability & Performance of RAID 1
First, let's focus on RAID 1 reliability, which is quite high. This is primarily due to the storage mechanism used: mirroring. If one disk is damaged, you can replace it with a new one easily, without fearing for your data. You just need to rebuild the array; the data will not go anywhere.
But there are several caveats to mention:
- RAID 1 will have greater reliability with an SSD than with a hard drive, since the SSD failure rate is much lower. So the degree of reliability of the array to some extent depends on which drive type you use.
- Each array has its own controller, which also risks becoming unusable. So, if the controller fails, most likely even mirroring will not help, and the data will be destroyed.
As for RAID 1 performance, here the write speed is not as high as we would like. But this is offset by the read speed, which is magnificent. The performance of the array will be greater with SSDs, however.
RAID 1 data recovery with DiskInternals RAID Recovery
DiskInternals RAID Recovery can perform data recovery at any RAID level, as well as disk imaging.
The program is developed using advanced technologies, taking into account the wishes of its customers. A reliable Recovery Wizard will help you if you have little knowledge about how to restore an array. The utility also has additional functions for seamless and safe data recovery; for example, free preview of files before exporting. DiskInternals RAID Recovery supports both automatic and manual detection of important parameters such as array type, RAID controller type, disk order, size stripes, etc.
Follow these instructions for painless array recovery:
Download and install DiskInternals RAID Recovery on your computer. Next, open it and (if you need to) run the Recovery Wizard.
Select the array to be scanned.
Choose a search mode:
- Fast (superficial)
- Deep (for a detailed scan)
After scanning, browse the search results and thus verify the integrity and correctness of the data. All this is completely free.
After that, purchase a license to complete the export of data to your desired storage location.
As an alternative, it is possible to use Partition Recovery. That can be helpful if you need to restore the data from RAID 1 array disks.