Plan maintenance windows for migrating an AWS Elemental Conductor File cluster

You should plan to perform the cluster migration in several phases:

First phase

You can perform the tasks in Step A: Get ready to migrate an AWS Elemental Conductor File cluster outside of a maintenance window.

Second phase

Perform the following tasks in one or more maintenance windows. The number of windows depends on the number of nodes you can complete in one maintenance window.

Third phase

Perform all the following tasks on every node, all in one maintenance window.

These steps upgrade all the nodes at one time. You must perform the upgrade in this way because you can't have a cluster where some nodes are on the previous version of the AWS Elemental software and some are on the new version.