vRanger Hardware Requirements (4041291)

In order to enable vRanger to function correctly and to minimize the possibility of failing tasks, it is necessary to follow the outlined Hardware Requirements.

If the Requirements are not followed, one or more of the following issues may appear:

• Overall slow performance of the server where vRanger is installed.
• Backup jobs are stuck in the GUI or take longer to complete.
• Snapshots are not consolidated properly at the end of Tasks.
• Target VM's disks left mounted on the vRanger VM.

Amount of resources that are assigned to the vRanger server depend on few different factors.

Most important factors are:

• Transport method that is being used.
• Amount of concurrent tasks running on the vRanger machine.

Whether installed on a Physical or Virtual Machine, vRanger should have a minimum of 4 CPU and 4 GB of RAM. 

If vRanger is installed on a VM and the HotAdd transport method is being used, amount of concurrent tasks that are allowed equals to the amount of CPU cores on the VM. For example, 6 CPU's on the vRanger machines enables performance of 6 concurrent backup tasks.

When vRanger is installed on a Physical Machine, LAN free (SAN) transport method is available instead of HotAdd. Lan Free transport method can stress the vRanger server so the physical resource utilization needs to be reviewed.

In case of a performance issues, following can be considered:

• Additional NIC's and HBA's to increase throughput
• Additional Repository locations to distribute load and traffic

To offload required tasks from the vRanger machine, Virtual Appliances can be deployed on a Cluster level or on ESXi host level. 

For best performance it would be recommended to have a Virtual Appliance on each ESXi host.

The virtual appliances should have a minimum of 4 CPU and 4 GB of RAM per Virtual Appliance, these resources can be increased if high consumption is observed or if recommended by a vRanger support engineer.