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vRanger 7.8.5 - User Guide

Introduction vRanger overview Configuring vRanger
Configuring vRanger through the Startup Wizard Configuring vRanger manually Supplemental instructions: additional repository types
Using vRanger Backup Restore
Restoring an encrypted VMware VM Performing a full restore for VMware VMs Performing a full restore for Hyper-V® VMs Performing a full restore for VMware vApps Performing a full restore of a physical machine Performing an FLR on Windows Performing an FLR on Linux Restoring from manifest
Replicate VMs Reports Integrating and monitoring vRanger Using the vRanger Console vAPI Cmdlet details

HotAdd

vRanger includes support for the VMware® HotAdd disk transport functionality, which permits LAN-free backups from a VM.

vRanger can use HotAdd for two backup methods:

VA-based HotAdd: Mounts the source VM’s disk to the vRanger virtual appliance (VA) deployed on the source host or cluster. This method lets vRanger have direct access to the VM data through the VMware I/O stack rather than the network.
Machine based HotAdd: If vRanger is installed in a VM, this method mounts the source VM’s disk to the vRanger VM. This method lets vRanger have direct access to the VM data through the VMware I/O stack rather than the network. With this method, the backup processing activity occurs on the vRanger server.

To use vRanger with HotAdd, the VM — either the vRanger VA or the vRanger VM — must be able to access the target VM’s datastores. In addition, all hosts to which the vRanger VM or VA could be vMotioned using VMware vSphere® vMotion® must be able to see the storage for all VMs that vRanger is configured to back up.

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.

1
Click Start > Run, and enter diskpart.
2
Run the automount disable command to disable automatic drive letter assignment.
3
Run the automount scrub command to clean any registry entries pertaining to previously mounted volumes.

The use of HotAdd for backups is subject to the following limitations:

VMFS Block Size: To use HotAdd, the VMFS containing the source VM and the VMFS containing the vRanger VM must use the same block size. For example, if you back up a virtual disk on a datastore with 1 MB blocks, the proxy must also be on a datastore with 1 MB blocks. For more information, see the VMware® VDDK 1.2.1 Release Notes at http://www.vmware.com/support/developer/vddk/VDDK-1.2.1-Relnotes.html#knownissues.
HotAdd and the vRanger VM: You cannot use HotAdd to back up the vRanger VM. This issue might result in the vRanger volume being removed from the VM along with the source VMDK. For more information, see the VMware VDDK 1.2.1 Release Notes at http://www.vmware.com/support/developer/vddk/VDDK-1.2.1-Relnotes.html#knownissues.
Mixed mode clusters are not supported for HotAdd. For example, a VM on a VMware® ESXi™ 6.0 host cannot HotAdd a disk from an ESXi 5.1 host.

SAN backups

To perform SAN backups, vRanger must be installed on a physical system attached to your fibre or iSCSI network. In addition, the volumes containing the servers to protect must also be properly zoned and mapped to the vRanger proxy server.

With vRanger installed on a physical proxy server, the following configurations must be made:

Click Start > Run, and then enter diskpart.
Run the automount disable command to disable automatic drive letter assignment.
Run the automount scrub command to clean any registry entries pertaining to previously mounted volumes.
Only one proxy should see a set of LUNs at one time. For backups only, The proxy server should only have read-only access to the LUNs. To perform LAN-free restores, ensure that the vRanger server has Read + Write access to any zoned LUNs to which you want to restore.

LAN

If no LAN-free option is available, backups can be processed over the network. LAN backups are supported in all configurations and require no additional set-up to work, but are generally the slowest option. Network backups can be processed one of two ways, depending on the source host configuration.

VA-based LAN: Transfers the source VM’s data from the source disk to the vRanger virtual appliance (VA) over the network. With this method, the backup processing activity occurs on the VA.
Machine-based LAN: If there is no vRanger VA deployed, vRanger transfers the source VM’s data from the source disk to the vRanger server over the network. With this method, the backup processing activity occurs on the vRanger server. For VMware® ESXi™ servers, data is sent by way of the VMware VDDK transport.

Transport selection order: VM backup

When backing up VMs or other virtual objects — hosts, clusters, and so on — the vRanger Backup Wizard includes an Automatic option which lets vRanger select the best available method for your configuration. When determining the best transport, vRanger uses two key criteria:

The logic used to select a transport differs slightly based on whether vRanger is installed in a VM or on a physical server. The following topics describe the steps taken to select an automatic transport.

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