Brainstorming Backup Solution for DS923+

[DrMacintosh]

Hi all, we have recently finally started using our DS923+ at work for more than just a backup solution for Microsoft 365. We've freed up almost 500GB of our available 1.15TB on SharePoint. So now we have some breathing room and are no longer paying Microsoft's insane $0.20/GB pricing. That's all great, but now that data (mostly archival data that does not get touched) no longer lives in the cloud, it's no longer being backed up by the NAS, so I need a method to back it up.

 

Our DS923+ is currently loaded with 2x8TB Seagate Ironwolf drives in an SHR mirror. We have 2 more identical drives as cold spares. We have 4.4TB of free space with 2.6TB used. I do not foresee us filling up this NAS for at least 3 years.

 

We do not have the budget to buy another NAS. I could buy one personally and backup the work NAS, but I already have a small home media server and do not need the features of Synology NASs.

 

I have a 4TB WD Blue drive that I could put in an enclosure and do USB copies regularly (or I can use one of our cold spare NAS drives). (This is my leading option right now I think.)

 

I could convince work to pickup yet another subscription, and use a provider like Backblaze B2 storage at $6/TB/m. The problem with this is we have cable internet at the office, with only 40Mbps of upload, so this is not optimal.