Requirements for vSphere remote site replication
I run 3 Enterprise 5.5 x vSphere hosts in A Site with vCenter. I want to add a new host in a remote site and configure vSphere replication between them. Issues related to the:
- Do I need to vCenter in slot 2?
- If vCenter Site of A is the Site management and hosts of the Site B and Site A goes down, vSphere replicated VMs can be restarted to Site B without problem?
- Is there a risk to not have a vCenter dedicated to Site B on the changeover plan?
Thank you
-Matt
Hello
(A) If you have vCenter in slot 2, you will need to deploy device VR and match two VR UI sites.
In the case where something happens to site A, losing vCenter and/or VR device, you can use vCenter and VR device to site B to perform a recovery after disaster and put in place the VMS to site B, inside of vCenter inventory B.
(B) If you have no server vCenter in slot 2:
1. There is no need to deploy handset unit of VR (embedded DB for server VRMS + VR + VRMS) for site B.
2. you can deploy additional device VR-server only for site B, so that the replication traffic goes directly from the source ESXi to the correct server in VR.
3. If the disaster arrives at the site, you must have vCenter Server and VRM in the combined unit of VR upward and running order to use the VR UI to perform a disaster recovery. If vCenter Server or VRMS manage warehouses of data target is corrupted/lost, the only way to recover after a disaster is to consolidate recovery replica logs manually rename and replicated configuration files and hope that consolidated records represent a coherent source VM instance. This procedure is subject, not officially supported, and care must be taken when building the redo logs, in order to ensure the consistency of the data in the disks of the virtual machine, not some partial block updates.
Kind regards
Martin
Tags: VMware
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