Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
Next revision Both sides next revision
tutorial:adm:server_os_updates [2019/12/16 15:06]
fiserp [Things to consider] 		tutorial:adm:server_os_updates [2019/12/16 15:17]
fiserp [Performing the OS update]
Line 69: Line 69:
     - Update your test cases if necessary.     - Update your test cases if necessary.
     - After about a week, check system logs to make sure all components work as expected.     - After about a week, check system logs to make sure all components work as expected.
 +
 +<note>For Windows OSes, the update process is roughly the same. For checking services, status of the system and system logs, use the Event Viewer and Server Manager.</note>
 +
 +==== Solving issues ====
 +During maintenance actions, it is necessary to know:
 +  * How long each task will take **TT**.
 +  * How long the whole maintenance will take **MT**.
 +    * This is not simply a sum od **TT**s, you should add some extra time **ET** to have a proper cushion.
 +  * How long (at worst) the whole rollback will take **RT**.
 +  * To have a maintenance window that spans at least **MT**+**RT** with some extra time **ET**.
 +    * You are not able to safely perform the maintenance in shorter window - if something goes wrong, you need at most **RT** time to perform the rollback!
 +    * If you do not have any **ET**, if anything goes wrong you have to perform rollback procedure. Therefore, **ET** gives you some time you can spend on solving the issue so you can continue with updates.
  • by fiserp