Raid 1 Disk listed twice in Explorer and diskmgmt.msc tool

Question

Hi

My system has an os disk, and a raid 1 disk (which has two disks. The OS disk is labelled c: and raid 1 disk was labelled d:
I plugged in an usb expansion drive and removed it as it caused a drive offline error caused by a disk collision.
I now see two copies of the raid disk d: and e:
The contents seem to be identical except for one file I wrote onto the raid yesterday which is on the d: drive but not e:
diskmgmt.msc shows two identical volumes also, with almost the same size partitions ?

It's almost as though the two dives in raid 1 array are now split into two drives ?

Any ideas what has gone wrong and how to resolve ?

Regards

Tony

Answer 1

Hello

Thank you for your question and reaching out. I can understand you are having issue related RAID-1 disk showing two times.

1. Please check if there is any Disk failure of RAID-1 Disk
2. It looks RAID-1 is Broken somehow due to which it is showing two different disks
3. Please try to power cycle your Machine and see if the RAID-1 is back again.
4. Please check Windows -> System Event logs for any Hardware or Disk failure errors.

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Answer 2

Hi,

1. Both disks appear to be functional
   2 I agree
2. Problem persists after power on.
3. Could not find any errors.

As I have backups of the disk, I think I will rebuild the array and restore backup.
Thanks for your suggestions.