Server not available. Please help!

[Ionutz]

I'm running DSM 6.2.3-25426 Update 3,  with Jun's Loader v1.04b DS918+ on a Dell T20 server for 6 years I think.

Recently I added 2x8TB HDD and I wanted to remove 2x2,5TB HDD. So I uninstalled app so I can delete de first volume. But it said it can not be deleted. So I gave it a restart. 

And now this is all I can see:

Edited March 14 by Ionutz

[rojoone2]

Why didn't you go to storage manager and select swap drive? You could have replaced them one at a time if you had RAID 1 without loosing any data.

Its takes a while to copy things, but it could have been done in a couple days depending on how much data was stored on the original drives.

Is there a reason you still use DSM 6.2.1 and have not upgraded to 7.2?

[DSfuchs]

Have you already tried the version 6 assistant?

https://archive.synology.com/download/Utility/Assistant/6.2-24922