HYCU being a backup software followed and supported by the publisher, updates will be regularly made available to you in order to correct bugs, security flaws, provide optimizations or add new features.

Upgrade Path

If you missed some updates of your HYCU system, you should know that you will have to respect an update order to reach the desired version.

Indeed, if you are like me in version 4.9.0-5310 and version 5.1.0-2871 is available, you will not be able to perform a direct update to 5.1.0-2871. You will first have to install all the intermediate updates, i.e.: 5.0.0-1643 then 5.1.0-2871.

To know the update orders, you must consult the “Upgrade Notes” section of the Release Notes of the versions you must install:

Preparing the update files

If you followed the beginning of the guide, you will have noticed that I had uploaded in advance 2 additional versions of HYCU:

Otherwise, for those who missed it:

• Go to the website : https://support.hycu.com/hc/en-us/categories/15363121766940-Downloads
• Click on the version you are interested in:

• Check the box “I agree to the HYCU…” and click “Continue”:

• Click on “Download .qcow2”:

Once you have downloaded the qcow2 image from HYCU, you now need to transfer it to your Nutanix cluster.

To do this, connect to the Prism Element of your Nutanix CE cluster and go to “Settings > Image Configuration”:

Click on “Upload image”, fill in the form and select the previously uploaded image:

Click “Save” to start the transfer and wait until your image is processed by the cluster and is indicated as “ACTIVE”.

Installing updates

Once you have finished preparing your update files, log in to the HYCU interface, and click on the cogwheel at the top right:

We’ll start by pausing all controller activity so that the updates can run smoothly. Click on “Power options”:

Select “Suspend All” and click “Save”. Then go back to the “Setting” menu in the cogwheel and then click on “Software Upgrade” to display the list of available updates:

Select the update you want to install and click “Software Upgrade”:

A message alerts you that the backup jobs currently running will be canceled, click “Yes”:

The system will log you out during the update. Wait about ten minutes before logging back in:

Once the update is complete, log back in and perform the following updates:

When your HYCU controller has reached the target version, reconnect to the interface then go to the settings at the top right, then to “Power Options”:

Select “Resume” to return your HYCU controller to normal operating mode and click “Save”.

On your Nutanix cluster, you will then find the old versions of your HYCU controller:

You can delete them after some time if you don’t have any problems with the version currently in production (remember to update the name of the virtual machine if you put the version in it like me!).