i tried a simple search - what is a tiered storage - https://www.qwant.com/?q=what%20is%20storage%20tiering&t=web https://www.qwant.com/?q=what%20is%20storage%

i tried a simple search - what is a tiered storage - https://www.qwant.com/?q=what%20is%20storage%20tiering&t=web https://www.qwant.com/?q=what%20is%20storage%20tiering&t=web top 5 are ads, nothing relevant :(