
Synology DS1621+
0 TB
Synology DS1621+
0 TB
Do HDDs of the same size always have to be used in the Synology or can I replace individual hard drives with larger ones later on, for example? And 2nd question: Is it possible to back up to the Google Cloud (not Google Drive) or to Amazon S3?
The HDDs work no matter what size. It is best to use SHR - RAID then the disc size does not matter. With other RAIDs, the maximum size is that of the smallest disc.
Unfortunately I cannot answer the second question.
Regarding the first question: HDDs of different sizes can indeed be used (check the compatibility list!). If you want to increase the size of a volume, this would be the way to go; the smallest disc in the RAID always determines the capacity.
Regarding the second question: a backup using Hyper Backup to the S3 cloud is possible, probably also to the Google Cloud, but I'm not sure about that. Azure is also available as a backup target.
I have already made the exact same change to larger ones
It's pretty easy with SHR
There are also online calculators for the effective size you will get afterwards.
For the 2nd question
You might have to have a look at Hyperbackup. Should work in my opinion. I use Hyperbackup to back up to a second NAS in a different location
Detailed information on the 2nd question can be found on the Synology website