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Hello to both of you.

Good morning, afternoon, or evening whichever suits the best for the time you read this message!

I've been watching your channel "NASCompares" for quite some time now, which led me here today. You guys are awesome! I've learned a lot... a lot lot lot from your uploads!

In short: I would like to install a NAS for my parents for safety measures. I have watched a tone of your vids about different NASes. memory upgrades, ssds. and routers and against all the information I could get from you unfortunately I am still stuck.

I need your expertise. opinion!

Recently I have upgraded my parent's 2, old PCs and since both of them are in their 70's I thought so perhaps some automated backup system would be nice as well to make sure they won't lose any of their precious photos. or documents. etc.

Thanks to you guys! Now I have some idea about NASes as a whole. but just cannot get around those tiny little details.

Their two PCs:
PC 1 has roughly 3,4 Tb storage capacity (Windows PC)
PC 2 has around 4 TB storage capacity (Windows PC)
Both systems are around 20-25% full

and just to make it a bit safer I would like to make an off-site backup of their data as well on a separate NAS at my place and vice versa.

My laptop (MacBook) has only 1 TB capacity. On the other hand, I have roughly 5 TB of data on external storage devices that should also need to be backed up.

At this point, I was thinking about Synology Hyper backup. that could solve this issue.

If It could back up their phones as well with as little daily tinkering from their side as possible (as they either cannot or simply will not do it anyway) that would be awesome!!!


My first question would concern the ideal NAS for the task and the number and capacity of drives for the NAS(es) that should serve two to three separate PCs? What would you suggest?

I thought that e.g. a DS920+, filled with 6 TB drives. would be nice, on both sites but perhaps it is a bit overkill.

I went with the 6 TB drives in mind as I would like to hyper back up around 2-4 Tb of their data on my side and roughly 3-5 TB of my data on their side.
Or is it too much for hyper backup??

The main job would be to back up the data (photos. official documents, some movies) from the PCs to the NAS and create off-site backups as well on both my parents and my side. From time to time take snapshots of the PCs onto external storage devices if possible, but no VMs or Plex.
Is 4 GB of memory sufficient for this kind of task or 8 GB would be better?

Another question is whether or not should I upgrade their router as well?
I have a few years old Archer C7 - AC1750 that should be OK, however, their main router came from the internet provider company and I'm not sure if there are any ethernet ports left available to connect the NAS to. Any suggestion on this topic perhaps?

Would SSD caching on both NASes make any observable difference in performance? In case it would what amount of SSD caching do you suggest? 2Tb on both devices?

I have calculated with roughly 1500 Euro/NAS (including the drives and SSDs if needed) but I'm not sure whether or not is it sufficient? too much? too little?


I'm sorry if asked too many questions! I have calculated it over and over in my head but since I lack the expertise I am stuck at this point.

Could you give me some advice?


Thank you for every piece of advice you can share!

Looking forward to your answer!

Bence