What criteria should be taken into account when choosing / assembling a server?

Question

Iron

The customer wants a new database server, ie MSQL+1C.
The bottom line is that you need to provide 2 options: budget and medium.
What are the nuances to consider when choosing components?
It's clear that I want to choose SAS drives with ARP 15t, but the price, of course, repels. Or you can choose SDD, but as I know, there is a write limit, and since this is a database, the data there will change very often.
Is it worth considering regular 7200arp drives at all?

Answer 1

there is no initial data
1 how much the base weighs
2 how many people work with it
3 what is the increase in the base for a week, month, quarter, half a year
4 what is the average load on the existing server, by cpu, RAM and disk
, after these data you can select a server

Answer 2

maybe you should start with an analysis of customer requirements? If this is a desk for 10 users and 100 postings per day - why do you need SAS / SSD?
Why do you think that "if the database, then the data will change often"? There are many scenarios in which the database is mainly used for reading.