Hi. I’m currently in the process of doing a complete system backup of my linux system to Backblaze B2. I’ve been out of the loop with Duplicacy for quite a while, so Erasure Coding was a new feature for me to get my head around upon returning to it.
I have read the Backblaze Blog regarding EC, and watched some YouTube vids on it too, and I think I have wrapped my head around it now.
My question is, what are the implications of enabling it on Online Storage? What are the ideal situations in which you would enable it? For example, say you had a Local NAS, would the NAS be aware of Duplicacy’s EC setting? And would the Data:Parity ratio set on Duplicacy need to match the number of drives in your NAS?
Given that I wanted to get my large Linux system backup underway asap, I turned on EC upon storage creation in B2 before I fully understood what it was, as I gathered enough to understand it would be more difficult to add later.
However, now I’m wondering if it was somewhat pointless to do on B2, given they use EC on their side already. I don’t understand what an EC setting of 5:2 in Duplicacy would mean when that data arrives in Backblaze. Are they aware of that command and can split the data across 5 drives?
Am I using more online storage than I needed to, or less?
Someone please help me fully understand the implications of using EC