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What is the difference between HotAdd and NBD?

What is the difference between HotAdd and NBD?

HotAdd – In HotAdd mode, the Virtual Server Agent is installed on a virtual machine residing on an ESX Server. Local Area Network (NBD and NBDSSL) – NBD (network block device) & NBDSSL (encrypted NBD) transmit data over the TCP/IP connection between the ESX server and the proxy computer.

What is NBD VMware?

The NBD (network block device) transport mode transmits data over the TCP/IP connection between the ESX server and the proxy computer. This mode serves as a fallback when other transport modes are not available. The local area network (LAN) can be the production network or a dedicated backup network.

How do I change transport mode in commvault?

Right-click the subclient and click Properties. Click the Transport Mode for VMware list and select any of the following transport modes: Auto (default) – The transport mode is selected automatically based on the backup environment: If the datastore for VMDKs is accessible to a physical proxy, SAN mode is used.

What is VMware HotAdd?

HotAdd is a VMware feature where devices can be added “hot” while a virtual machine is running. Besides SCSI disk, virtual machines can add additional CPUs and memory capacity. HotAdd is a good way to get virtual disk data from a virtual machine to a backup appliance (or backup proxy) for sending to the media server.

What is Nbdssl?

NBDSSL is a VMware variant that uses SSL to encrypt all data passed over the TCP connection. The NBDSSL transport method is built into the virtual disk library, so it is always available, and is the fall-back when no other transport method is available.

What is Veeam HotAdd?

In the Virtual appliance mode, Veeam Backup & Replication uses the VMware SCSI HotAdd capability that allows attaching devices to a VM while the VM is running. During backup, replication or restore disks of the processed VM are attached to the backup proxy.

What is VMware NFC?

NFC (Network File Copy) traffic, which is the traffic from the vSphere Replication Server appliance at the target site to the destination datastores.

What is the need for virtualization?

The most important function of virtualization is the capability of running multiple operating systems and applications on a single computer or server. Virtualization can usually improve overall application performance due to technology that can balance resources, and provide only what the user needs.

How do I know if hot add is enabled?

If you’re wondering if the setting is already turned on or off on your VMs, you can check by editing the settings of the VMs and quickly look at the CPU and Memory section. If the VM is powered on and the CPU and memory fields cannot be edited as shown in the picture below, the setting is not enabled.

What is Veeam Backup transport?

A transport mode is a method that is used by the Veeam Data Mover to retrieve VM data from the source and write VM data to the target. For data retrieval, Veeam Backup & Replication offers the following modes (starting from the most efficient): Direct storage access. Virtual Appliance (HotAdd) Network.

Does Veeam use VADP?

Veeam Backup & Replication leverages VMware vStorage APIs for Data Protection (VADP) for all transport modes except for backup from storage snapshots, the direct NFS transport mode and the virtual appliance transport mode. VADP can be used for VMware vSphere starting from version 4.

Is there a veeam appliance?

The Veeam backup and replication appliance automatically converts backups to VMs; in the event of primary system failure or hardware failure, StoneFly customers can directly spin up the VM on DR365V and restore business within minutes.

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