25 minutes ago, jayhay548 said:

I added one to the pool - that didn't work.

That was expected.

Ok that was expected. But what about the bit where I have removed it entirely and replaced it and still not working?

 

James

I didn't see diags showing that part.

that was the diags I posted sorry I repost

 

Here it is: Fix common problems is saying array health pass!

tower-diagnostics-20210208-1704.zip

Those appear to be the same you posted before, old cache is still connected causing a lot of ATA errors, remove old cache and post new diags.

Thanks for your help! It is with the new drive. Shall I remove ANY cache drives?

I have triple checked that diagnostic is with the new drive

 

12 hours ago, JorgeB said:

old cache is still connected causing a lot of ATA errors, remove old cache and post new diags.

 

Ok so:

 

I got SpaceInvader to help me. And he was brilliant!! We(he): formatted again the new cache and changed it to xfs. Then we copied the old cache to the newly formatted drive and bingo - worked! It would probably have been fine Jorge if I'd have done exactly what you sad and removed the old one first before putting the new one in. But there we are. All done.

 

Probably caused by a power cut corruption so I'm getting a UPS! 

 

thanks all.