Synology 2/4 Bay Configuration

[MoePC]

Hello, I'm totally new to NAS & their many different configurations. I have a 2 part or 2 system question below.....

My first thought is to get a Synology DS214+, with 2x4TB WD Reds HD's. Then add a DX213 Expansion Unit later, with the same amount of storage.

I want to store video files in the DS214, setting it up for redundancy (Raid 1).
I want the DX213 to store my other files, also in Raid 1 config.

Is this a good setup?

OR ______________________________________________

My second thought: Get the DS412+, 4 bay with 4x4TB eventually, but I'd start off with just (2) 4TB drives at first.

My question for this setup is, with 4 hard drives installed in the DS412+, can this unit be configured as, Disc1 my video files, Disc 2 backs up disc 1. Disc 3 my other files, Disc 4 backs up Disc 3?

Thanks

 

[MoePC]

Or, run raid 0, and use a backup program like Acronis True Image or Norton Ghost, to back up whatever drive I want to whatever drive I choose. ????

 

[dave_the_nerd]

If you think you'll need the extra storage in the long run, I'd probably just get the 4-bay to begin with.

Do not use RAID-0. Ever.

Do not think about it in terms of "X stuff on Disk 1, Y stuff on Disk 2." The primary benefit here is building a fault-tolerant array - everything goes on all the disks, and if one disk fails, nothing bad is likely to happen. Just replace the dead HDD and rebuild the array.

 

[MoePC]

Thanks for the Reply.

Ok, so I can start off with 2x4TB hard drives. Put all my files on them. When I run out of space, add another 4TB drive, which will make 3. At that point the NAS will be using all 3 drives instead of the initial 2. Use 3 drives until I need to expand and add the 4th.

So which raid configuration to run? Raid 10?