Backup of virtual machines on a remote host

We have a number of standalone servers ESXi 4.1 in places remote, managed by 1 vCenter server and want to use the ghettoVCBg2 script to save them. We do not want to deploy a vMA on each server ESXi, rather we want to use 1 vMA by geographical area to manage VM backups for all ESXi hosts in this area. There may be 2 or 3 hosts 2 or 3 virtual machines running in each region.

In my lab, I have 2 hosts configured on nets under different. I have 1 vMA running on host 1 I want to manage backups for host 1 and 2. The two hosts have only local targets for storage, no NAS or SAN or iSCSI.

I have 2 copies of the ghetto script, each adapted to the ESXi host needs the VMs system backed up. Everything seems to work fine, I can run the script on the host 1 to backup VMs on host 2 (by using the - server switch and any copy of the script) with local storage on the host 2 as the destination storage.

My question is: what path the data takes when save? Given that the vMA's in one place and it's back up virtual machines in a different storage location that is local to the target ESXi host, the traffic is forwarded through the host that is running the vMA? or the host ESXi target handles the traffic locally so that it touches the WAN?

When we look at the performance on the network adapters on the host and two virtual machines (the vMA and the VM being supported), I don't see any significant increase in traffic, but backups take about twice as long to complete.

Is there anything else I can check without having to put a sniffer on the network to capture traffic? Some places have slow links between sites, some are even the radio links to reduce WAN traffic is a priority in some cases.

Any suggestion would be appreciated.

Backups are started remotely through vMA using the vSphere API, but the actual backups and as mentioned traffic occurs between your hosts and data warehouses is destination.

Tags: VMware

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