Altaro VM Backup: offsite copies to your Altaro Offsite Server


Altaro Offsite Server (AOS) is an application for the software backup solution VM Backup that acts as a target for copying backups over WAN connection.

This solution is an ideal tool for Disaster Recovery purposes allowing the administrators to store backups offsite and in a cloud environment.


Altaro Offsite Server key features

The software solution provides the following features:

  • Deduplication - to obtain the best deduplication ratio, AOS leverages the Altaro’s Augmented Inline Deduplication that allows to reduce offsite copy duration and bandwidth requirements.
  • WAN acceleration - storing backups to offsite backup servers, data sent over the WAN are optimized since only new (never transferred) data are processed.
  • Encryption and Compression - backups can be compressed and encrypted.
  • Public cloud deployment - supporting any Windows Server version (Windows 2008 R2 SP1 or later), AOS can be deployed to a VM running on Microsoft Azure or another public cloud allowing to store offsite copies in a cloud environment.
  • Multi-tenant - the Altaro Offsite Server is multi-tenant and multiple users or customers are allowed to backup to the same Offsite Server.
  • Free - AOS is an application included with any edition of Altaro VM Backup and it is provided at no additional cost.




Before installing the Altaro Offsite Server, make sure the VM meets the minimum system requirements:

  • Minimum of i5 CPU (at least 4 cores recommended)
  • 1 GB RAM + an additional 25MB RAM for every 100GB of data being backed up
  • For replication, AOS must have enough resources to boot the VMs
  • .NET Framework 4.7.2 installed


Firewall ports

The communication between the Altaro VM Backup software and the Altaro Offsite Server occurs in the following ports:

  • TCP 35116, 35117 - communication between the Altaro VM software and the Altaro Offsite Server
  • TCP 35120 - communication from Altaro VM Backup to the Altaro Offsite Server for Replication
  • TCP 35116 and 35117 - communication from v7 clients with the Altaro Offsite Server

Make sure these ports allow the traffic in your firewall.


Install Altaro Offsite Server

From Altaro website, download the Altaro Offsite Server's installation file and run the wizard. Click Next to begin the installation.


Accept the EULA and click Next.


If you don't have any specific need, leave default installation path and click Next.


Click Install to proceed with the installation.


The software is being installed in the system.


When the product has been installed successfully, click Finish to exit the wizard. Leave the Launch Management Console option enabled to open the console automatically.


Select This Machine and enter the Administrator credentials. Click Connect.


The Altaro Offsite Server's dashboard.



Configure the Altaro Offsite Server Repository

To store backup copies in the Offsite Server, you need to configure an account used to connect the Repository.

Under Setup select Configure Accounts and click Add Account.


Enter the Account Details then click Set a backup location to store's offsite copies.


Select Physical Drive to store backup copies in a local disk. Right click the desired disk and select Create.


Specify the folder name to store backups and click Save.


Click Save to save the account configuration.


The configured account. This indicates the Repository used by Altaro to store offsite backups.



Configure the Offsite Location

Now move to Altaro VM Backup Server to configure the offsite location and access the Backup Locations area.


Click Add Offsite Location on the top-right.


Select Altaro Offsite Server (WAN Acceleration) as type of Offsite Location and click Next.


Specify the Altaro Offsite Server IP address or FQDN and enter the correct credentials. Click Test Connection to test the connection between Agent and Host then click Finish.


The created Offsite Location.



Configure an Offsite Backup

Now drag and drop virtual machines you want to store at the Altaro Offsite Server location and click Save Changes.


Selected VMs have been assigned to the Offsite Location.



Take an Offsite Copy backup

To take an Offsite Copy backup, go to Offsite Copies area.


Select VMs to process and click Take Offsite Copy. You must have a full backup in place before taking an Offsite Copy.


The offsite copy is being performed.


Depending on the amount of data to transfer and the available bandwidth, after some minutes the offsite copy completes successfully.


Looking at the Altaro Offsite Server, select the Dashboard to see the just copied backup.



Seeding to avoid a large offsite transfer

If you have a large amount of data to transfer over WAN, the bandwidth may be limited influencing the time needed to complete the first full backup.

To make the transfer faster, Altaro VM Backup provides the option to perform the Seeding process by saving the first full backup to a removable disk and manually transport the backup to the Altaro Offsite Server. The import operation will then transfer the full backup into the offsite Altaro Offsite Server.

To perform the Seeding operation, attach an external disk to the Altaro VM Backup Server and go to Offsite Copies area.


Select VMs to process then click Seed To Disk.


Taking benefit of offsite copies stored in your Altaro Offsite Server, you can fulfill the 3-2-1 backup rule increasing the security and availability of your data.

Altaro Offsite Server is available to download as free-server application.