What routine maintenance should be carried out for servers?

Question

System administration

What planned work should be carried out on the servers? For example, defragmentation, checking disks for errors, rolling updates, etc. Moreover, as I understand it, for different servers different work:
1. Server 1C
2. Domain controllers
3. Database server
4. Terminal server

Answer 1

I think you have Windows, for starters, for general tasks:
Course M20410C - Fundamentals of Windows Server 2012 R2
M20411 - Administration of Windows Server 2012
M20412 - Advanced administration of Windows Server 2012
Then, for each of the products, can courses be omitted?
Of course, you can give a list, but what's the point? You didn't even mention the software you are using.

Answer 2

the most important thing is that when the light is turned off, everything turned off correctly and then DC AD would automatically rise, and everything else 1 Backups
and periodically check them for integrity and operability
2 update settings

Answer 3

1. backup. regular. verifying that the data from this backup is deployed correctly. for all types of servers - files, databases, AD.
2. if the raid is an array on a server or storage, then defragmentation does nothing.
3. Installing updates to close security holes.
4. updating and periodic checking of servers by antivirus.
5. server hardware monitoring - usually solved through iLO + hardware drivers and vendor software.
6. monitoring of services, such as the operation of the sql server or the fact that the load on the terminal servers is not more than some average number entered from experience