Kernel-based Virtual Machine (KVM) vs. Scale Computing Platform

Kernel-based Virtual Machine is very well suited when one needs a single-node virtualization host or needs to build a complex demo setting on their own notebook (e.g. when demonstrating solutions to a customer).

Incentivized

Scale is best suited to environments that do not have excessive external or proprietary peripherals. Integrating with tape drive backups or robot tape libraries can be problematic. The most effective use of Scale systems is for companies running multiple instances of the same operating system. The hypervisor's code/file-sharing nature does an excellent job managing new instances while keeping the increase in storage to a minimum.

• Lightweight built-in implementation for all *nix based OS.
• Easy to deploy and manage VMs.
• Freeware (is you are using a free OS).

Incentivized

• Simplicity - I do not have to create storage buckets or micromanage anything.
• Efficiency - Lower power use since moving to a hyperconverged environment.
• Scalability - Adding additional hardware is easy, and increasing things like the amount of RAM or number of cores is easy.

Incentivized

• KVM itself doesn't ship with a management interface
• KVM itself is a bit complicated to handle
• KVM needs Qemu to virtualize Windows guests

Incentivized

• Display the IP address of the node on which the VM is running on the Devices (gear icon) tab. This would allow me to manage my Microsoft license easier.
• During the on-boarding I missed the step to install the Scale Computing Platform tools, and we didn't notice this until I had issues with backups. It would be helpful if some kind of alert notification would display on a VM card if the tools were not installed.
• Add a new health or diagnostics tab that would display alerts, diagnostic tools, performance concerns or pattern anomalies.
• Some kind of email/alert when a disk reaches near capacity

Incentivized

I'm on the fence about renewing the support contract. The reliability of the HC3 makes it difficult to spend the cost of the renewal which is higher than the costs prior to Scale. I'm convinced if we were a larger district that the savings would be tremendous and I wouldn't hesitate to renew. In our specific situation, it may be more feasible to pay per incident.

Incentivized

It does the job and stays out of the way. The specifics of usability relies on the implementation, but with things like Icarus and libvirt, things are standardizing nicely.

Incentivized

Everything you need to do is point-and-click easy. If you are the kind of admin who wants to edit every config file and endlessly customize your environment, then Scale may not be for you. On the other hand, if you just want it to work really well, and do what they told you it will do, then Scale is the ideal system.

Incentivized

Never had an outage or an error. Once a hard drive failed, but Scale kept on working flawlessly without interruption.

Incentivized

Performance has been just as outstanding as reliability. I have never experienced delays in any aspect of usage.

Incentivized

We had one need for support post-setup, and the person who answered the phone was the support person I needed. No transfer, no level one, and our accents were similar enough that we understood each other easily. The problem was actually in my switch, not with Scale, but the support person still assisted me and got the entire cluster up and running again in under 30 minutes. They are truly a partner not just a vendor.

Incentivized

I did not do in-person training.

Incentivized

Because Scale is so simple, the training is just as quick and easy.

Incentivized

The implementation was very easy. We had Scale support on standby and they were ready and eager to help if needed. The process went so fast the employees in the organization did not even know it was done.

Incentivized

The key points why I made my decision for KVM in comparison with VMWare are: Freeware software (I am using an Ubuntu server OS), Fewer resources usage, vSwitch using that provides the ability to configure dot1q trunks to/between VMs, Stability, and simplicity of using/troubleshooting, Well-known interface (for Linux geeks).

Incentivized

As mentioned previously, not having to worry about the compatibility between your hardware, hypervisor, and VM OS is a great help. On the downside, there is less ability to get deep in the weeds with your own system. Much of the Scale HyperCore OS is locked down intentionally, which prevents technical users from having much insight on broad error messages without support intervention.

HC3 is one of the best products I have purchased for our district. It is unbelievably reliable to the point that they shoot themselves in the foot on support contracts.

Incentivized

• Capital expenditure costs are low, because is open-source and free
• Operational expenditure costs are medium because it's necessary [to have] an IT team with experience in Linux
• First step to the virtualization world. Wake up, we are in the 21st century

Incentivized

• With the high cost of the leading competitor the savings starts day one and saves every year after.
• Scale can be administered by a tier one technician so cost of labor is reduced.
• If there is a problem like a cyber attack, the savings kick in with the least amount of downtime.

Incentivized