We are in the process of moving our VMWare site to Nutanix. With 3 locations i would like some design tips to setup the NTNX sites/cluster(s). I am very new to nutanix.
Situation: 3 fysical sites, 2 sites with 4 NTNX hosts and 1 site with 3 NTNX hosts. Every site dedicated fiber connection. The 2 "4 hosts sites" are for production, the 3 hosts site will be otap and/or extra hosts for production.
How to design the NTNX cluster(s) with minimal risk of loosing data and the most redundancy.
If someone needs more info please let me know
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It would help to know about your workloads/VMs:
- What's your actual design (How many VMs ? How big are they/how much VM data do you have on each site?, existing ESX/storage specs, replication already in place? etc.)
- Do you want/need to replicate your VMs from one site to another?
- If so, do you want to replicate all of your VMs between your 2 "4 nodes" sites? between each "4 nodes" site and the "3 nodes" site? Otherwise? How frequently do you want to replicate your VMs? Do you want to retain 1 or more previous versions of you VMs?
- Do you already own the Nutanix nodes/block? if so, what models do you have?
We can help you on your design, but we need basic information to do so!
Thank you for the quick response.
In reply to your questions:
About 100 vm's with around 3TB data. All is now in one site with 5 hosts (esx 4.2). We do own the Nutanix blocks (NX3050) and ESXi 5.5 is installed on NOS 3.5.
Both production sites need to hold the same vm's and the same data all the time if possible. If one fysical site goes down the other site needs to take over with no loss of data or vm's if possible.
The otap site is for testing but should also handle production if needed (perhaps one host OTAP and 2 hosts production).
In scematic we want to do the following:
Location A - Production
Location B - Production
Location C - Production / Testing
Subnets is another question, the desing is not yet made so we are very flexible.
Does you're scenario not mean that all the load is on one fysical site and the other fysical site does not have any load or does vmware handle the load (if it is one big cluster of production)?
And how about the production data? If one fysical site goes down is than production data consistant on another fysical site or is the data max 1hour behind?
I was told that every nutanix host writes data with an RF of minimal 2 and that it could stretch fysical sites so that a metro cluster is not needed and data is allways available to the vm even when one fysical site is down.
Tnx for discussing this with me.
I will contact a Nutanix SE and talk about this with him/her.
This means that wat we want should be possible with NOS 4.0.
NOS 4.0 should allready be available states the press release(by the end of april), but they may have hit some bugs or performance problems because it still is not available 😞
Do not hesitate if you need any more help on Nutanix.