Hi all,

 

Yes, I didn't RTFM. I was wondering my next steps to take.

 

I had a disk go offline - I'm not sure why, but it happened when I ran a duplicacy backup with too many threads - Everything locked up for a good 15 minutes then came back online. While the system was locked up I got a message to tell me the disk was disabled.

 

System came good, did a restart to see if the disk would come back online. It wouldn't. SMART data is fine. Thought that if I moved the disk (Disk 1) to a new drive slot (Disk 7), the disk would come back online and all would be good. Moved the disk, did a preclear and then (yes, wrong order) asked whether I was going down the right path.

 

Since it was a new drive it completed a pre-clear, so now I have my old disk 1 sitting post pre-clear waiting to know what I should do next. I've since learned its not easy to just add/remove drives. I asked on discord and someone very helpful pointed me towards doco regarding deleting a disk - I could in theory do this with disk 7 and then replace the disk back to slot one, but mentioned the information to do the alternative method is outdated now in the new versions of unraid.

 

So now - Is there something I can do to do this easily? I can get a new drive, so I'm contemplating just grabbing a new drive to replace disk 1 with and just mount disk 7 back into the array, but I would like to delay it as i don't 'really' need another 16TB yet.

 

Unraid version 7.0.1.

 

Main page attached

1 hour ago, kazzaw said:

So now - Is there something I can do to do this easily?

Since the old disk was added as disk 7, you now cannot easily remove it, especially with a disabled disk, the easiest way would be to get a new disk to rebuild disk1

Thanks, I've ordered another 16TB drive to replace Disk 1, it should be here shortly. 

 

Another question if I may, what would be the most efficient way forward now? 

 

I have Disk 7 pre-cleared, if I format it and mount it will it trigger a parity check? The new disk I have coming will need to do a pre-clear first, which will take ~ 1 day, and a parity check takes just under two days. I assume I can't (or shouldn't) run two disk operations (parity check and pre-clear) simultaneously. 

 

Can I leave Disk 7 unmounted at the moment, install the new disk, do pre-clear and then run a parity check? Or am I going to have to do two parity checks regardless?

10 hours ago, kazzaw said:

I have Disk 7 pre-cleared, if I format it and mount it will it trigger a parity check?

No, it will be available as storage.

 

10 hours ago, kazzaw said:

Can I leave Disk 7 unmounted at the moment

You can, but it won't matter for that, as mentioned above.

Excellent - so I can add disk 7 in now and then just pre-clear the new disk 1 when it rocks up, add it in then run a parity check? 

Yes, and then rebuild the disk, not a parity check, but it's similar.