Step by Step Guide Veeam B&R 9.5 U4 Upgrade

Yesterday, Veeam released Veeam Backup and Replication 9.5 Update 4, which contains some significant improvements: Archive Tier, Secure Restoreand Staged Restore, VMware vSphere 6.7 Upate 1 support and others…

You can learn more about Veeam Backup & Replication 9.5 U4 new features here.

This technical article provides a step by step guide to upgrade Veeam B&R 9.5 Update 3a (build or later prior to installing this update) to Veeam B&R 9.5 Update 4 build be version (Veeam Backup and Replication 9.5 U4 Upgrade). If you need to upgrade your Veeam Backup Server (v8 or v9) you can follow this article.

For more security:

The first step is to realize a configuration backup of Veeam server (“Configuration Backup” menu on the screenshot below) and SQL database backup. If the Veeam Backup Server is deployed on a Virtual Machine, execute a backup of this VM with Veeam B&R or a snapshot.

Veeam Menu

When the backup is done, you can close Veeam software and restart the Windows server (reboot). Basically, I recommend you to stop properly the 6 Veeam services before upgrading (services.msc).

Running the Installer:

Veeam B&R 9.5 U4 Upgrade: You have to run the installation file “VeeamBackup&Replication_9.5.4.2615.Update4”.

Veeam files

Veeam files

Installation Wizard:

Once wizard is launched, click on “Upgrade” button.

Veeam Wizard

Accept the terms of the Veeam and 3rd party components license agreements, click on “Next >” button.

Veeam Wizard

Click on “Next >” button.

Veeam Wizard

Click on “Browse…” button to add you Veeam B&R license file, click on “Next >” button.

Veeam Wizard

Specify the service account, click on “Next >” button.

Veeam Wizard

Click on “Next >” button.

Veeam Wizard

Click on “Yes” button.

Veeam Wizard

Click on “Install” button.

Veeam Wizard

The upgrade took about few minutes to complete.

Once the upgrade completed, a prompt appeared to finalize the installation. Click on “Finish” button.

Post Reboot:

When the upgrade is done, I recommend you to restart properly the Windows server (reboot).

Once the reboot completes and Veeam B&R software has been opened, you can update all distributed components (especially Mount Server and vPower NFS) via “BACKUP INFRASTRUCTURE” menu.

Veeam Wizard

Veeam Wizard

Execute a right click on your Veeam Proxy Server and click “Upgrade…” button.

Veeam Wizard

Veeam Wizard

Select servers to update and click “Apply” button.

Veeam Wizard

Finally, when all components have been upgraded, you can click on “Finish” button.

Veeam Wizard

Veeam Wizard

Veeam B&R 9.5 Update 4 does not require new job creation or any architecture changes for your existing backups and replication to work. If there are dedicated Veeam proxy servers in the environment, now is a good time to upgrade those servers, otherwise, Veeam is now ready to use. Version:

Veeam Wizard

I recommend you to execute Active Full backup to benefit from the new backup mechanism.

You may just stay on the RTM build if the following issues fixed in the GA build are not relevant to you:

  • Subscription license replacement grace period bug for licenses with 0 Workstations causes agent jobs to stop working until you install an Instance license.
  • Non-existing VMs specified in advanced job settings cause jobs to fail after upgrade (their presence was not an issue in Update 3a).
  • In operational RESTful API V1_3 protocol version (one used in Update 3a). We already have a standalone hotfix available for this through support as well.
  • Direct SAN transport fails for vSphere backup proxies installed on certain non-English OS locales due to “special” characters present in the OS temp path.
  • Backup Copy jobs fail to start after data transfer window opens if their copy period started during the restricted window.
  • Transaction log backup email reports are missing for Windows agent-based log backup jobs Windows.

Unfortunately, the GA build will not have an issue with VMware Essentials 5.0 & 5.1 resolved, even if Veeam already had a few support cases open on this issue. This is because fixing this issue will require rolling back to an older version of VDDK that contains known security vulnerabilities so Veeam cannot include this solution in the shipping Update 4 code. So instead, Veeam is looking at addressing this with a standalone patch. Thus, if you’re affected with this issue you can open a support case to be notified on patch availability.

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You can learn more about Veeam Backup & Replication 9.5 here.

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Christopher GLEMOT

Data Management & Security Team Leader | Technical specialist around Data, Security, Backup, Disaster Recovery, Cloud, Governance, Virtualization and Storage | Veeam Vanguard 2016-21 & VMCE | Founder of | Owner of
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