Hello, On Wed, Jun 17, 2020 at 12:17:58PM +0200, Albretch Mueller wrote: > also, if in order to use RAID 10 you need 4 drives
Linux mdadm can do RAID-10 with 2 or more devices (also doesn't have to be an even number). > (but the dollar per Gb is approaching $0.02) and you get 1.5 > faster performance, what is the economy of "bying more RAM" if it > is so much more expensive? RAM and storage devices are completely different things, are used for different things, and your question is unanswerable without a better description of your workload and probably some benchmarking. Also, even main system RAM is vastly faster than 3x HDD. https://gist.github.com/jboner/2841832 like, 80 times faster. > Any comparison on HDD, SSD and RAM including pros and cons which is > worth reading? It's not possible to provide you with anything but the most basic comparison unless you describe exactly what you are trying to do. Cheers, Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting