Seeing as the Parity drive is the busiest drive in an array I want to semi retire my 24TB parity drive to a media drive cold storage. And because a rebuild of the array takes so long I only want one parity rebuild.

 

I would like to replace my 24TB Iron Wolf Pro with another 24TB same model parity drive. Then move the old 24TB parity drive to slot 1 of array to replace the 16TB array drive.  Which will give me two array drives for media and 3 mixed use drives. I may even break it down a little finer with one being TV shows while the other would be movies and everything else media wise.

 

1) replace parity drive 24TB for 24TB Iron Wolf Pro

2) move old parity drive to slot 1, 24TB replaces 16TB

3) Move data from slot 2 16TB to slot 1 24TB drive (media)

4) Then rebuild parity with new configuration.

 

I have a backup of data

Move the 16TB to synology backup NAS to replace 10TB, rebuild 2 disk parity.

Edited March 16, 20251 yr by grumpy
wrong drives sizes 19TB are 16TB

Step 4 should not be required as parity is realtime and maintained throughout.

Hmm! I'm misunderstanding something here maybe. If I change the parity drive then there needs to be a rebuild. If I replace an array drive there needs to be a parity rebuild. Considering I want to change both. And only want one parity rebuild after replacing two drives and copy/move data to one on the array.

Am I wrong, is there a way to do this without a parity rebuild?

Just now, grumpy said:

If I replace an array drive there needs to be a parity rebuild

No - in this case the data drive is rebuilt, not the parity drive.

@itimpi I'm a little confused on best approach on adding and rebuilding my replaced hard drive. I'm somewhat following what you are saying but just looking for the best, easiest and fastest approach.

 

I do not need to replace the 24TB parity drive as it is only 5 months old, so I have changed my mind on that.

The 16TB drives are coming up on 5 years of age.

HD 1 is empty 16TB

HD2 is 98% full @ 15.7TB free space of 342GB mostly TV @ 13.7TB MEDIA ONLY

HD 3 and 4 is 4% are about 3.5TB each used out of 16TB

HD 5 is 67% full @ 16.1TB used out of 24TB MEDIA ONLY

 

2 and 5 are media drives only as I wanted to allow for spin down on as many drives as possible I want to limit where media is. Now I screwed up in the original setup (years ago) putting all media in a media share instead of breaking it out into many individual shares.

 

So with your knowledge and experience how would you do it today and going forward? (steps to take)

Edited March 17, 20251 yr by grumpy