Kernel-based Virtual Machine (KVM) vs. Oracle Solaris

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.

Incentivized

Oracle Solaris is great due to the fact that it actually is meant for high-end servers. Supports a wide range of hardware. The Stability of the solution is great. The documentation does not support some solutions, and there are no other options. Most of the product is still command-line, despite the fact that they've got a graphical user interface in some areas. For some reason, core administration is still done via command-line.

Incentivized

• KVM is really good at providing fast and reliable virtualization for Linux guests
• Since KVM is a kernel module, every VM is a Linux process which can be managed by Linux system tools
• KVM integrates very well with the management framework libvirt, which is why KVM can be integrated in automation tools as well

Incentivized

• Live update for patching in conjunction with the package management functions. This ability to rollback is very convenient.
• dTrace
• Built in compliance testing.

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

• Takes time to learn.
• Integration into Microsoft's Active Directory.

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

You need to take the time to learn it. It is a massive product.

The support teams are well trained and responsive. Patches are rolled out regularly and are easy to deploy and backout.

Stress testing and timing is key. You need test systems that mirror the live environments. User testing must be reflected in peak loads.

It is a very reliable solution that can be used for x86 architecture virtualization with low overhead. It is a free and open source software. Easy to use withOpenStack.

Incentivized

Oracle Solaris is Scalable, have a good patching capability and secure by default. You want to have something that's up and running and stable, something that's not going to crash. But if we do have an issue, we can get somebody for technical support who can help us work through the problems.

Incentivized

• Fast provisioning of new servers.
• Huge drop of the cost of servers compared to bare metal.
• Easy upgrades of resources, sometimes now even requiring a server restart.

Incentivized

• It just runs like a top, this mean TCO is low
• We've not had issues with Solaris running on Sparc.
• Reliability is above reproach.

Incentivized