Storage pool crashed / alleen lezen?

[caveman85]

This morning I started replacing disks on my DS218+. I had 2x 2TB drives in mirror-raid and not enough disk space available.

I deactivated the second disk and replaced with a 6TB.

After powering up, I started the repair, all seemed OK, but after a few hours (repair must have been almost ready), I start receiving bad sector messages on the 1st drive. After 50 minutes, I received the message that the storage pool was stuck and repairing had failed.

Now the storage pool is in Critical mode and volume 1 is read-only. I cannot access any data, as the file manager is also disappeared from the web-page?

 

How should I proceed?