Planning an expansion that will go over the 108TB volume limit on a storage pool with no multi-volume support. Need some guidance.

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Planning an expansion that will go over the 108TB volume limit on a storage pool with no multi-volume support. Need some guidance.

3
2
NAS
DS1821+
Operating system
  1. macOS
  2. Windows
Mobile operating system
  1. iOS
Background info:
So I have a DS1821+ in SHR with drives in this configuration: 5x12TB and 3x16TB
I previously did a HDD migration from a DS1019+ in DSM 6 and added the 3x16TB drives

I checked Storage Manager and it says NO under "Multi Volume Support" since I created this storage pool in DSM 6 on the 5-bay 1019+.

I have 74.3TB/83.6TB used currently and I plan to expand with 3x22TB ironwolf drives by replacing 3 of the 12TB drives. I can then take those 3x 12TB drives and put them in the empty 1019+ that I still have and use it as an offsite backup and slowly fill it up with the 12TB drives that I'm taking out of the 8-bay.

Eventually I want to have 7x22TB with a empty bay to take advantage of the "replace drives" feature in the future, but then I realized a hitch with this plan...

What would be the best approach here?
If I go and start replacing the 12TB drives, the total pool size will go over 108TB by the time I add a 4th 22TB drive and I won't be able to add another volume because multi-volume support is off. As per the synology support site:
  • DSM 7 and above: All newly created storage pools come with multiple-volume support.
  • DSM 6.2 and below:
    1. Go to Storage Manager > Storage Pool and click on a storage pool to view its details.
    2. Check the Multiple volume support field:
      • If Yes is displayed, the storage pool supports multiple volumes.
      • If No is displayed, the storage pool only supports a single volume, and no more volumes can be created.
Here's my calculations with the subtracted figure being the parity.
Current: (10.9*5)+(14.6*3)-(14.6)=83.7 TiB
Upgrade 1: (10.9*2)+(14.6*3)+(20*3)-(20)=105.6 TiB
Future Upgrade 2: (10.9*1)+(14.6*3)+(20*4)-(20)=114.7 TiB


I figure all that extra space might just be dead if I can't add any new volumes. It kinda sounds like I'm screwed unless I can find out a way to temporarily store 74.3TB and just start my storage pool over from scratch.

Potential solution?:
This might be stupid so someone please correct me if I'm mistaken.
I still have that DS1019+ sitting in storage with nothing inside. What if I were to buy 5x22TB and load up the 5 bays, create a pool with multi-volume support on and a total capacity of 80 TiB=(20*5)-(20). Then I could use Migration Assistant to move everything from the 1821+ 8-bay to the 1019+ 5-bay and since I only have 74.3 used I should be able to migrate everything successfully. Then once that's all migrated, I can do a HDD migration from the 5-bay to the 8-bay and have 3 bays free for future expansion.

I've got the 3x 22TB ironwolf drives coming in the mail tomorrow. But not opposed to picking up two more to make this plan work. Unless someone has a cheaper idea to make this all work the right way? I think I really shot myself in the foot not enabling multi-drive support 4 years ago when I first set this all up but I sincerely didn't think I'd ever have to think about going over the 108TB limit this soon. Am I correct in assuming all my settings and packages and whatnot will transfer over automatically with the potential solution I outlined above?
 
LOL you guys crack me up.

It’s actually my Plex library that takes up most of the space but I’ve also got over a decade of family photos + videos, and I’m a graphic designer by trade so it’s got 10 years worth of all my projects I’ve ever touched and their associated assets. So that’s giant ProRes MOVs, RAW photos (personal and professional photography), giant PSB files over 2GB each and they’re versioned, after effects projects and exports and assets.

Also got all my GoG games stored locally. Considering setting up a steam cache server now that all the gaming PCs are hooked up with 10 gig but still thinking it over. And I’m a bit of a hoarder archivist so I’ve got some YouTube playlists set to automatically download every time I add to it. I just get worried they get deleted. Never know with these acquisitions who owns what and sometimes whole channels get nuked for no reason. Also a while back I would download all my SoundCloud playlists because remixes would get taken down so frequently.

This used to be spread out over a bunch of external hard drives (and most importantly a free unlimited google drive EDU account from college) one day I fell down the YouTube rabbit hole on Synology NASes and wanted to unify it all.

A couple years later I got a scary email from my college. Google started pressuring them to close out our old google accounts even though the college said we could keep the accounts forever, supposedly a perk of being alumni. People were pissed, there were ex students who’ve used their edu email for years and now they’ve got to change emails on years worth of different accounts. As for me I basically needed to redownload my whole Plex library before the month was over.

So that’s when I upgraded to the 8-bay. This story is all over the place but basically I have a lot of shit and I just really like tinkering lol

I guess I’m in the mentality of “save everything”. The internet is in such a tumultuous time. I fear we’ll see lots and lots more “lost media” in the coming years. One time I tried looking up the episode based cut of this one YouTube series, Sync by corridor digital. Turns out it used to live on a MCN channel Bammo and when they shut down and deleted all their videos. So now the only version of this show exists in the movie supercut format. And the episodic format is basically lost media. Just one example idk.
 
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LOL you guys crack me up.

It’s actually my Plex library that takes up most of the space but I’ve also got over a decade of family photos + videos, and I’m a graphic designer by trade so it’s got 10 years worth of all my projects I’ve ever touched and their associated assets. So that’s giant ProRes MOVs, RAW photos (personal and professional photography), giant PSB files over 2GB each and they’re versioned, after effects projects and exports and assets.
I knew it...RAWs, MOVs etc; I was getting strong designer / photog vibes from your OP...;)
So that’s when I upgraded to the 8-bay. This story is all over the place but basically I have a lot of shit and I just really like tinkering lol

I guess I’m in the mentality of “save everything”. The internet is in such a tumultuous time. I fear we’ll see lots and lots more “lost media” in the coming years. One time I tried looking up the episode based cut of this one YouTube series, Sync by corridor digital. Turns out it used to live on a MCN channel Bammo and when they shut down and deleted all their videos. So now the only version of this show exists in the movie supercut format. And the episodic format is basically lost media. Just one example idk.
Amen to all that...i've found that strategically deploying the phrase 'digital archivist' covers most of the above, and gets me additional nerd-points when used appropriately:

Me: 'I'm buying more HDDs...'
My accountant: 'Are you sure you need these? We're already sailing close to what the HMRC are going to consider allowable in this tax year... What are they actually for?'
Me: 'Digital archiving'
My accountant: 'Ok I'll allow it. They'll have no problem with that. Talking of which, what brands of drives would you recommend...?'


:cool:
 
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I knew it...RAWs, MOVs etc; I was getting strong designer / photog vibes from your OP...;)

Amen to all that...i've found that strategically deploying the phrase 'digital archivist' covers most of the above, and gets me additional nerd-points when used appropriately:

Me: 'I'm buying more HDDs...'
My accountant: 'Are you sure you need these? We're already sailing close to what the HMRC are going to consider allowable in this tax year... What are they actually for?'
Me: 'Digital archiving'
My accountant: 'Ok I'll allow it. They'll have no problem with that. Talking of which, what brands of drives would you recommend...?'
:cool:

Oh yeah, the IT nerd cred points are real! At my last job IT wanted to pull me in from the design pool because they didn’t have anyone with as much Mac experience haha.

Yup gotta get those tax write offs where you can!
 
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