Kernel-based Virtual Machine (KVM) is a virtualization solution developed by small Israeli software company Qumranet and supported by Red Hat since that company's acquisition in 2008.
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Nutanix Cloud Infrastructure
Score 9.1 out of 10
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Nutanix in San Jose, California offers their software-defined Enterprise Cloud as a hyper-converged infrastructure solution. The Nutanix Cloud Infrastructure solution combines the Nutanix Acropolis virtualization solution, Nutanix AHV hypervisor (though Acropolis works with other hypervisors), Prism cluster manager, Nutanix Calm and Nutanix Flow server management, and is available on the Nutanix NX series of server hardware appliances, as well as third-party OEM appliances.
We looked at ten solutions, a mixture of VMware and Hyper-V as well as Nutanix KVM, many we rejected on the basis of fault tolerance - most of the other solutions only had two nodes and a SAN. We also found the associated costs of VMware too much for a small business. We also …
Nutanix is more expensive than VSAN. There's no getting around this. But the value of a Nutanix system far outweighs the value of VSAN. Nutanix will give you data locality, VSAN will flood the network with disk reads & writes. Nutanix wrote their own replication factor …
We have used, and still currently use VMWare for our hyper-visor in many respects, it is what was used entirely. While Nutanix's Acropolis is missing a few features because of it being a newer hyper-visor, none of them are deal breakers and the cost savings is absolutely …
KVM is the best solution in the case you need to test and turn up any virtual environment with limited vCPU/RAM resources. The obvious area of its use is a network environment when we want to avoid being tied to one type of hardware/vendor and being able to swap from one instance to another with no downtimes. The use of a vSwitch (that supports VLAN tagging) is a significant bonus for network engineers that some other hypervisors do not provide.
I would highly recommend using Nutanix HCI for any of your infrastructure needs. I would highly suggest saving money and using the free included AHV hypervisor. The performance is incredible, and the data reduction capabilities are on par with vSAN. I would only recommend using ESXi with Nutanix AOS if AHV does not yet support some one-off configurations or if you still want to use horizon while the frame is still growing.
One-click upgrades; whether it's hypervisor, firmware, disk or other updates. This feature has drastically decreased complexity and administration time.
Data Locality. Not all hyperconverged technology is created equal. When I first purchased Nutanix they were the only vendor (and as far as I know, still are) that made sure the storage a VM used was on the same host that VM was running on. Given a normal operating state, the [storage] network is literally only used for replication data.
They got rid of traditional RAID. Nutanix uses software to determine where a VM's storage should be written and replicated to. This dramatically decreases I/O when changing the number of nodes in a cluster, be it on purpose or during a failure scenario. Ex. adding a new node: If one uses RAID arrays then enough space has to be set aside to create a new array that includes the new node, then all the information has to be copied over, and the old array destroyed. RAID arrays do not grow and shrink gracefully so Nutanix has designed a better solution.
The Nutanix management interface was built on HTML5. No more flash headaches!
The one downside I have working with Nutanix is the sales team. They seem to try to add in extra goodies to sales quotes or push for extras that you don't really need and you have to tell them to take them out. Don't be afraid to push back on them.
Need to analyze sizing with sales team to ensure right sizing.
AOS definitely make our dev/test virtual environment management much easier than before. And the consolidation the test/dev environment from Azure and Cisco UCS, we have less need to transfer large amount of data between different hardware platforms which was very big challenge. To expand the capacity is very easy to archive as well.
Nutanix AOS performance is light years ahead of HPE. We were nervous about using Nutanix AHV but it has been a vast improvement and saves on cost. Applications has been much improved and end users have commented. It has also freed up time for our Network Administrators and made their lives easier.
Modernizing with HCI, which creates private cloud-like data centers, is, for many organizations, the first step in their digital transformation. Companies that have kept their eye on the long game and made decisions based on a fully-developed ROI analysis have found themselves uniquely positioned to make the critical operational changes the COVID-19 situation has demanded.
IPv6 is needed for link local discovery. We do not have IPv6 configured on our network so the easiest way to get our nodes configured and discovered by foundation was to configure the IPv4 addressing within the node prior to trying to discover with foundation.
We've decided to go for both VxRail and Nutanix AOS to make sure we can get the best deals from both sides. I appreciate this may not be a path most companies can go down, but always good to have a bit of healthy competition between vendors to ensure you're getting the best pricing from both sides!