How important/useful is dual-bay (RAID1 mirror) in a home NAS, with cloud backup?

[NotAllThere]

How DO people here handle backup?

I backup to NAS, and backup the NAS every now and then to S3 Glacier.

[css_jay99]

It's important to make sure that your individual HDD are from different batches, even different manufacturers. 4TB is the maximum size you should use.

why 4 TB?. I am planing on getting a 2TB NAS with 2x8TB drives.



I currently have an 11 yr old 4bay Synology NAS. Started out with 4x4TB drives. To cut a long story short, It is now limping with just 1 drive in the bay and 2 X 4TB 2.5" portable drives attached for weekly/daily backups. I decided that RAID really was not for me as long as I had backups


So I pretty much thought I am well protected .... until a colleague's house got broken into and that got me thinking of Theft, Fire and Flood since all my backups are in the house.


I have heard in this tread about S3 Glacier and Blackblaze online backup. which is best of for 3.5TB worth of data



I am sticking with 2bay NAS this time around so Synology or Qnap for NAS?

[NotAllThere]

why 4 TB?. I am planing on getting a 2TB NAS with 2x8TB drives.



I currently have an 11 yr old 4bay Synology NAS. Started out with 4x4TB drives. To cut a long story short, It is now limping with just 1 drive in the bay and 2 X 4TB 2.5" portable drives attached for weekly/daily backups. I decided that RAID really was not for me as long as I had backups


So I pretty much thought I am well protected .... until a colleague's house got broken into and that got me thinking of Theft, Fire and Flood since all my backups are in the house.


I have heard in this tread about S3 Glacier and Blackblaze online backup. which is best of for 3.5TB worth of data



I am sticking with 2bay NAS this time around so Synology or Qnap for NAS?

8TB drives aren't as reliable as 4TB. I use Synology. My son uses Qnap. Synology is easier but less flexible to use.