• This topic has 3 replies, 2 voices, and was last updated February 11, 2016 by Chris S.

Satellite offices replicating back to DR site

  • Diane S
    February 9, 2016 06:43:23 AM

    I have 3 branch offices, each running ESXi infrastructure, and one DR site also running vSphere. One of the branch offices is the “central branch” and has a vCenter server managing the ESXi hosts and VMs in all 3 branches. Can I deploy Zerto in such a way where there’s one ZVM at the DR site (with VRAs deployed the each of the DR ESXi hosts) and one ZVM at the central branch vCenter – with VRAs deployed out to all ESXi hosts in the 3 branch offices, so that I can protect the VMs in all 3 branches replicating them back to the DR site? There is site-to-site VPN connections between the 3 branches, with a dark fibre network link between the central branch and DR site.

    Chris S
    February 9, 2016 04:43:21 PM

    Absolutely you can do that. You can architect it a few different ways. I have a setup exactly like yours and I’ll describe how I have it setup.

    Datacenter A: This is my primary datacenter where 90% of my applications run. This is a colocation center and no humans work from this location.

    Datacenter B: This is my DR datacenter where I would recover everything from Datacenter A in the event of a DR. I also run a few local services at this site. Humans do also work from this location.

    Remote offices C&D: These are offices that have humans, and a few services.

    Datacenter A and B both have a vCenter, and each also have a ZVM. This is necessary to have as a base. This allows me to replicate to and from A/B.

    Remote Offices C and D only each have a single ESXi server. They are managed by the vCenter in Datacenter A. I then can replicate C and D to either Datacenter A or Datacenter B. The choice is up to you. In my case, I have some VPG’s going to A and some to B, for different reasons.

    Hope that helps.

    Diane S
    February 10, 2016 11:41:59 PM

    Hi, yes this helps heaps and makes me more confident that what I’m trying to achieve will work. Does it make any difference if the ESXi hosts – and therefore their corresponding VRAs – in A, B, C & D are on different subnets? Am I right in saying that as long as the VRAs in A, C & D can route to/ping the VRAs in B then all will work well?

    Chris S
    February 11, 2016 01:05:05 PM

    That’s correct. Each of my sites is a different subnet. They are all accessible to each other via MPLS links and internet tunnels, to make 1 big network, with 4 sites, each site having a different subnet. As long as you can route to/from your different locations, having different subnets isn’t an issue at all.

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