In this section, you see the steps of performing a rolling upgrade and all the things you need to consider before you do the upgrade. Because every server platform you might work on can be different and so many factors exist, I invite you to practice this on your own lab systems as well. Rehearse the process first. You might also want to get training or have your staff get training in weak areas of this evolution. Many times, you could find you aren't up to speed on OS issues or certain aspects of new technology. Take risks in a lab that you would never take in real-life production. Be cautious and test, test, test!
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