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:
When vRanger is installed in a VM, LAN-free backups are made possible by the VMware® HotAdd disk transport.
To use vRanger with HotAdd, vRanger must meet the following requirements:
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You must use a version of VMware vSphere® that supports VMware vSphere Storage APIs - Data Protection (formerly known as vStorage APIs for Data Protection or VADP). |
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.
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To disable automatic drive letter assignment, run the automount disable command. |
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If you are using a SAN, verify that the SAN policy is set to Online All by typing san and pressing Enter. |
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To clean any registry entries pertaining to volumes that were previously mounted, run the automount scrub command. |
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VA-based LAN: 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. |
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Machine-based LAN: 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. |
NOTE: Generally, this configuration yields the slowest performance, and should be avoided if possible. A better option is to deploy a VA to any VMware® ESXi™ servers, and use that VA for backup and restore tasks. |
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