# Upgrading High Availability Installations

{% hint style="info" %}
Before upgrading the PBX HA, please consult with PortSIP support to ensure the versions are compatible.
{% endhint %}

Please follow the below steps to upgrade your current PBX HA.

## Back up data

Before upgrading, you can create a snapshot of the EBS. This allows you to roll back your changes if necessary. Here are the steps to follow:

* In the Amazon EC2 console, in the navigation panel, choose **Elastic Block Store**, and select **Volumes**.
* Select the check box for your **Volume** that be used in HA, choose **Actions**, and **Create a snapshot**.
* Under Description, enter "pbx-ha-volumes-backup".
* Choose **Create Snapshot** to create a snapshot.

<figure><img src="https://846155343-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MfkamWLaD5pcQwlKWwC%2Fuploads%2Fm9MZy1sNoa8Jb15D6amN%2Faws-ha-15.png?alt=media&#x26;token=55f42cc2-c282-4505-82df-944800184058" alt=""><figcaption></figcaption></figure>

## Download and Update Resources

Perform the below command only on the EC2 instance **ip-172-31-16-133.**

```
cd /opt/ && rm -rf portsip-pbx-ha-on-aws-guide-16.tar.gz \
&& sudo wget -N https://www.portsip.com/downloads/ha/v16/portsip-pbx-ha-on-aws-guide-16.tar.gz \
&& sudo tar xf portsip-pbx-ha-on-aws-guide-16.tar.gz
```

## **Update PBX**

Use the new version image of PortSIP PBX to update the PBX.

{% hint style="danger" %}
Please contact PortSIP support to obtain the **\<PortSIP PBX new version image>** before upgrading.
{% endhint %}

Perform the below command only on the EC2 instance **ip-172-31-16-133.**

```
cd /opt/portsip-pbx-ha-guide/ && \
/bin/bash update.sh <replace with the newest docker image>
```