(Or was, back then. These days you can probably collapse all of that into a single medium-sized epyc or something.)
I know where there are Sun V880s still running Oracle databases in a biggish cluster.
Their processor power, memory capacity, and storage capacity are exactly equivalent to a Raspberry Pi 4 with a biggish SD card.
We have come a long way.
(Or was, back then. These days you can probably collapse all of that into a single medium-sized epyc or something.)