My intent is to use an expansion unit (DX517) to backup my DS920+ NAS, say every week, and then carry it offsite. I hope I bought the right equipment!
I'm an absolute novice at this. All I've done so far is create a new storage pool on the expansion unit and I don't know what to do next. Further, when creating the storage pool I was warned that I can't turn off the expansion unit using the power button, so I don't even know how to actually power it down to carry it offsite once a backup completes. The articles at Synology.com only seem to refer to a USB connected drive.
Another open question: do I have the option of keeping a history of backup snapshots on the expansion unit or do I just get a synced copy of what's on the NAS pool?
Here's my equipment:
DS920+ DSM 7.0.1 (Storage Pool 1, Volume 1) SHR 4x8TB WD Red Plus
DX517 (Storage Pool 2, ) SHR 4x14TB Ironwolf Pro
Can anyone give an outline of my next steps?