RAID volume degraded array status
Here you will find out:
- what is degraded RAID array
- about degraded array events
- when DiskInternals can help you
Are you ready? Let's read!
Degraded RAID array mode
Any array with data redundancy can be prone to various kinds of failures.
The entire array enters "degraded mode" if one of the array's drives fails. The RAID array can still function, but its performance will be significantly reduced. When the raid controller detects a system issue on one of the disks, it automatically changes the array to the minimal performance mode. The user will receive the notice "ARRAY IS DEGRADED - 1 disk is missing" when the array enters degraded mode..
Therefore, if you happen to be dealing with “raid status degraded”, the array can still be restored to its normal state. To do this, you just need to replace the faulty hardware, since if another disk fails, all data in the array will be lost.
DegradedArray events and minus-one drive from RAID array
The DegradedArray event can accompany you if a drive is finally removed from a RAID array.
When one of the raid disks fails, you usually get this message:
DegradedArray event detected on device md dev / md / 2.
From that message, you can understand what kind of array has been removed; in this case, /dev/md/1 (or dev/md/2).
Also, in this message you can find the expression:
MD1 is active and uses raid1. The array is built from sdb3 and sda3.
The symbol [U_] means that one of the drives is out of sync. In this case, sdb3 is a bad drive because it is marked (F).
How to restore hardware or software RAID data after a DegradedArray event
Data after a DegradedArray event can be restored using DiskInternals RAID Recovery with just a few clicks.
Click on the RAID Recovery button and then re-save the data to external storage.
Use Uneraser recovery mode if some data has been deleted.
RAID repair utility automatically restores an array from available hard drives with a drag and drop interface, and determines the correct type and size or array, as well as the order of the drives. RAID Recovery uses advanced algorithms that allow you to recover all types of files (documents, images and multimedia).
No special technical skills or programmer education are required to repair damaged RAID arrays. If you have any questions, the Recovery Wizard will help you right away. If this is not enough, contact the support team and the company's specialists will immediately help you. You can export files to another hard drive or partition, upload files via FTP, or use virtual disks.
You can also apply the recovery algorithm in case of loss with DiskInternals RAID Recovery, so you will feel more confident in your abilities.
Download and install the application.
As soon as the application is open, it automatically (using the Recovery Wizard) recognizes the array and other key indicators.
Select the RAID you want to scan and the scan mode (full or quick).
Then wait for the results and view them for free using the appropriate function.
After that, purchase a license online and export the data. Select the drive by first connecting it to the computer.
Good luck!