Firecracker vs. IBM PowerVM

While deploying workloads in lightweight microVMs presents a couple of perks, Firecracker may not be the best software to handle this. Startup times are slow and scalability is quite limited because of the jailer and virtualization barriers. We have had security breaches on isolated EC2 instances while using Firecracker. It however has a silver lining by improving how serverless functions in container ecosystems are run with their VMMs.

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IBM PowerVM only is available on IBM POWER machines. It makes live much easier, compared to bare metal machines (OPAL) or machines with KVM. Personally I would not like to manage systems that don't have IBM PowerVM. The current line-up always includes IBM PowerVM (firmware built-in).

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• It makes it easy to secure virtual machines as they are segmented into microvms with a minimal attack surface area

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• IBM PowerVM is used for virtualization on IBM Power series hardware to utilize the hardware resources more efficiently like micro partitioning for CPU, NPIV for fibre port...etc
• IBM PowerVM provides the feature of live partitioning mobility (LPM), which allows moving the running virtual machine from one hardware to another hardware without any disruption on a virtual machine.
• IBM Power VM provides the feature of Integrated virtual manager (IVM), which helps to manage the single IBM Power hardware. There is no need to purchase a separate hardware management console to manage the Power hardware. This works well for small organizations having small environments.

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• Excludes devices unnecessarily
• Has a slow startup time the basis being to improve security which is quite irrelevant.
• It has limited functionalities on monitoring VMs despite being an open source.

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• The ability to run Windows. Hardware architecture does not allow this, but it is a limiting factor.
• More performance monitoring and management could be built in.
• Sometimes is marketed and packaged in some rather unusual ways

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The product works. It provides the proven environment to support IBM's primary operating systems that run on the IBM Power processing systems. This by extension includes the IBM various storage products that work within that environment. It has proven to be seamless as the environment has grown and as various new products and version updates have been added. As with most IBM products, the support is excellent.

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I give it a solid ten. For what it is built for it delivers exactly what we need: predictable, controlled and reliable infrastructure. Even though it does have a learning curve, its not too steep to get to grips with and the reward and usability of the system is great. There is fine grained resource control ensuring optimal use of resources. Workload isolation and dynamic lpar reconfiguration ensures consistent and dependable results. Day to day management is handled with ease and confidence. If coupled with an automation solution, it becomes a highly usable platform at scale, allowing teams to standardize workloads

Our company utilizes VMware and PowerVM. VMware is very user friendly from an IT support view and makes supporting Windows OS easier. PowerVM is moving in that direction. PowerVM is better in that you can prioritize workloads across different VMs and be granular in your reservation of cores and virtual CPUs. PowerVM allows you to modify VM characteristics while the VM is up and running

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• Low memory overhead on each microVM
• We can run workloads from different customers on the same machine.

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• We are able to run several LPARs on one frame, which means we do not need to buy as many physical servers. That saves on floor space, power, and heating and cooling of the data center, among other things.
• Using LPM allows us to do maintenance on a frame without impacting the LPARs, giving us greater uptime.

Incentivized

Independently Invited by TrustRadius

A de minimis incentive was given to thank the reviewer for their time. The incentive was not used to bias or drive a particular response, nor was the incentive contingent on a positive endorsement. More Info