Me and my friend were discussing this the other day about how he said RAID is no longer needed. He said it was due to how big SSDs have gotten and that apparently you can replace sectors within them if a problem occurs which is why having an array is not needed.
I replied with the fact that arrays allow for redundancy that create a faster uptime if there are issues and drive needs to be replaced. And depending on what you are doing, that is more valuable than just doing the new thing. Especially because RAID allows redundancy that can replicate lost data if needed depending on the configuration.
What do you all think?
I really, really liked @atimehoodie@lemmy.ml’s answer, because even as I was reading it, I was thinking of things that they could have said—but didn’t—which would have been easily rebutted. Those things fell into two basic categories: malware, and environmental effects.
As I understand it, malware is an issue with any online backup system, whether that’s a RAID or just a second external hard drive. So I don’t really think it works as an answer to why RAIDs specifically don’t qualify as backup.