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tutorial:adm:server_os_updates [2019/12/17 07:47] fiserp [Performing the OS update] |
tutorial:adm:server_os_updates [2019/12/17 07:49] fiserp [Solving issues] |
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| * Know how long (at worst) the whole rollback will take (rollback time **RT**). | * Know how long (at worst) the whole rollback will take (rollback time **RT**). | ||
| * Have a maintenance window that spans at least **MT**+**RT** with some extra time **ET**. | * 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, there is simply not enough time. If something goes wrong, you need at most **RT** time to perform the rollback! | + | * You are not able to safely perform the maintenance in shorter window, there is simply not enough time. If something goes wrong, you will need **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 carry on with updates. | * 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 carry on with updates. | ||