Installing vRanger in a virtual machine (VM)
When vRanger is installed in a VM, you can perform backups and restores either over the network or in a LAN-free mode which uses the SCSI HotAdd functionality on VMware® ESXi™. The following topics provide a summary of each method. Replication and physical backup tasks are always performed over the network.
The transports available when vRanger is installed in a VM include the following:
HotAdd backups (VMs only)
When vRanger is installed in a VM, LAN-free backups are made possible by the VMware® HotAdd disk transport.
During backups with HotAdd, the source VM’s disks are mounted to the vRanger VM, allowing vRanger direct access to the VM’s data through the VMware I/O stack. Backup processing occurs on the vRanger VM, with the data then being sent to the configured repository.
To use vRanger with HotAdd, vRanger must meet the following requirements:
When using HotAdd, make sure to disable automount on the vRanger machine. This step prevents Windows® on the vRanger VM from assigning a drive letter to the target VMDK.
|Click Start > Run
, and then enter diskpart
If it is not, set it to online all by typing san policy=onlineAll.
vRanger can perform LAN backups one of two ways — either through the vRanger machine, or by using the vRanger VA.
This option transfers the source VM’s data from the source disk to the vRanger VA over the network using the VMware®
VDDK LAN transport. The backup processing activity occurs on the vRanger VA, and then the data is sent to the repository directly.
If there is no vRanger VA deployed, vRanger transfers the source VM’s data from the source disk to the vRanger VM over the network. With this method, the backup processing activity occurs on the vRanger server. The backup data flows “direct to target” from the source server to the target repository, which means that the vRanger server does not process the backup traffic.