Blue Iris

I just swapped out to a much larger hard drive and am doing full time recording now.

I currently have 3 days worth of video going into NEW, then the rest into STORAGE once they age out. It's the same drive, is there any reason not to just let everything record to the same folder? I would think this should save some resources of constantly moving files around.

Nope, I originally did the same thing but there is zero benefit if it's all staying in the same drive. All it's doing is moving files from one folder to another which is extra HD cycles. Keep them all in new and expand that time range to you're upper limit capacity. Make sure to drop the allocation to the other Storage sections as low as possible (I think otherwise your stats can be skewed).

Agreed. All I can add to that is to check in "Clip Storage" that all is well after you have finished. Look out for allocation errors or minus values.

Sync to cloud seems to not work well with TBs of active storage, so if NEW is very large, cloud storage falls behind. Using iDrive I have set NEW to a few (2 GBs) and Sync, I move NEW to STORED which uses hourly & real-time iDrive Backup. NEW and STORED are on m.2 SSD. I have found the NEW on the cloud stays within seconds of local NEW. This setup is to avoid a thief taking or destroying the local system/disk and my recording of them in the process (especially if they do it fast; note, that I have battery power backup for my home). There is a camera on the recording system so I can catch them in the act.

VernonBI

Sounds like you have it all covered but what if they attack the camera that is watching the BI system, Perhaps you should have a camera watching the BI camera so they can not disable it first!