There are few requirements for Datacenter as
Standard now supports a lot of RAM out of the box. The main thing that
Datacenter does offer is HotPlug of RAM and CPU - useful for database servers or
web servers where it is difficult to negotiate to downtime to bring down a
system.
A system can be upgraded to Datacenter without
losing the software configuration. It takes about 10 - 15 minutes and it
requires two reboots.
Logon to the Windows server you want to do the work
on and start a command prompt with Admin privileges.
Type in:
dism /online /Get-TargetEditions
This will show you the OS you can upgrade to - it
is useful just as a little check that the OS you are doing the work on will do
what you are expecting it to do.
If all good, and you want to go to Datacenter then
type in
dism /online /Set-Edition:ServerDatacenter
/ProductKey:W3GGN-FT8W3-Y4M27-J84CP-Q3VJ9
/AcceptEula
The product key is just the KMS key that tells the server to look for
a KMS server to authenticate it. If you are working on a server in the DMZ,
then you will need to use a MAK key and then use the telephone authentication
system.
You can then add the extra RAM and CPU as required. If you are doing
this work on a live SQL server you will need to type in commands for the SQL
process to 'see' the extra hardware resources - which will be another blog!
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