Recently was
going through one of the blog by VMware which talks about the VMware vSphere
6.5 topology and upgrade planning tool, the tool has been designed keeping
in mind the vSphere upgrade from 5.5 or 6.0 to 6.5 and focuses on new vSphere
6.5 deployments. If you have not yet heard about this tool you should find
this blog useful, the tool is free of cost by answering a series of simple questions
you can receive recommendations/KB articles and reference documents
which can help with new deployments / the upgrade process.
New vSphere
6.5 Deployment option is straightforward wherein we must select the number of vCenter
Servers we are planning to use in the deployment + approximate number 6.5
ESXi + whether the enhanced linked mode will be used or not and last
but not the least whether you would like to make use of vCenter HA which is new
feature that has been made available with vSphere 6.5 which provides us with Active
/ Passive and witness nodes for vCenter Server with Recovery Time Objective
of 5 Minutes we can read more about vCenter Server High Availability in
the blog 10
Things We Need to Know about vCenter Server 6.5. Once we answered all
the questions the Topology and Upgrade Planning tool give us the recommended
topology as shown below where I have selected vCenter HA and Enhanced Linked
Mode.
If we have
plans to Upgrade to vSphere 6.5 we can simply go to vSphere 6.5 Topology and
Upgrade Planning Tool and select Upgrade to vSphere 6.5 by providing
details including whether the current version, we are running is 5.5 or 6.0.
Based on whether the current vCenter version is 5.5 or 6.0 we can provide
further details for example we are using single vCenter with Embedded PSC or
External PSC or maybe we are using multiple vCenter Servers with Embedded /
External PSC. Based on the option we select the next questions may vary more
like a flowchart wherein we specify yes or no and the next question depends on
last response.
Note: If
we are running with vCenter Server version older than 5.5 we must first upgrade
them to vSphere 5.5 or vSphere 6.0 before we continue.
Enhanced Linked mode not selected, with embedded PSC and upgrading my vCenter Server
Appliance from 5.5 to 6.5.
After
browsing through the tool, I must say that I am impressed with the information
this tool can provide, using this tool we no longer need to hop in to multiple
sites for deployment guides and reference architecture, rather we
can answer questions here and let the tool give us all the pre-and post
upgrades guides and upgrade resources that we need for the upgrade.