IBM PowerVM vs. Oracle Linux

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).

Incentivized

As a result of the migration from Red Hat Enterprise Linux to Oracle Linux, overall application performance was improved significantly. Oracle Enterprise Linux is pretty much based on the Red Hat Linux code, although it receives faster and more regular updates from Oracle. They have better security configurations. However, it is also missing a lot of packages that are usually available in other distributions.

Incentivized

• IBM PowerVM is reliable and fully redundant with no single points of failure
• Once it is set up, there is not a lot of maintenance that needs to be done on it
• It gives you a lot flexibility by using features like LPM

Incentivized

• Oracle Linux is a clone of Red Hat Linux, a well-known version of Linux and is very stable. This helps in maintaining fairly error-free systems.
• The operating system kernel can be updated without having to reboot the system, a potential time saver.
• Oracle Linux comes in fairly easy to implement packages that work well with Oracle databases.

Incentivized

• Each LPAR comes with a profile that sets a minimum, desired and maximum capacity (like for CPU). You can freely change the allocated CPU between the minimum and maximum on-the-fly. If you want to change the resource below the set minimum or above the set maximum, you need to shutdown the partition first and change the profile. It would be nice if there was a way to do that without downtime too.
• (Setting the maximum very high is fine for CPU but not for memory as it allocates a fixed percentage of the maximum (not the current) size for internal housekeeping).
• When you manage your Power system with an HMC, a lot of firmware updates can be done concurrent (on-the-fly), not requiring a power-cycle of the machine. If you use Novalink to manage your systems, this proces becomes broken and you need downtime on your physical system. You can use Live Partition Mobility to move every partition off of this system first, but still...

Incentivized

• TigerVNC needs some fine tuning in Oracle Linux 8.4.
• AutoTuning of Kernal Parameters for Oracle Databases based on the available hardware resources.
• Embedded IPA Solutions to manage large number of Oracle Linux Systems.
• Simple commands for LUN management.
• Proactive SELinux policy violation message to administrator's mailbox.

Incentivized

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.

Incentivized

Since it is built into the firmware (hardware) it requires no separate installation (except for the Virtual I/O servers, if you need those). Both HMC and Novalink (with PowerVC) support IBM PowerVM well and offer a user-friendly interface to setting up LPARs and making changes, most on the fly. Modern systems also give insights into performance, power consumption etc. A lot of separate tools exist to show more details, like LPAR2RRD, IBM Instana, IBM Turbonomic etc.

Incentivized

Quick & [on-point] response is what I would say for the support team. There hasn’t been trouble ever since we get in touch with them and ask for help for any major or minor trouble we have been facing. Moreover, the team is very accurate with their solutions and detailed orientated. With such [a] high-performance application and agile environment, a team as such is great at hand.

Incentivized

IBM PowerVM is the best and most stable product in the virtualization market. It gives the best performance with IBM Power Server, especially its best solution, where we have to run critical applications and save applications licensing costs. It provides a lot of good features like LPM, shared processor pool...etc, which makes the environment more flexible.

Incentivized

Oracle Linux became the obvious choice amongst its competitors due to its speed, agility, flexibility, and support from Oracle engineers. The ease of use was one of the major reasons for choosing Oracle Linux over the above-operating systems. Also, the cost of operations, management, and retention were significantly quite low. This made Oracle Linux a very easy and quick choice for our organisation.

Incentivized

• It has provided the performance we need during month end and year end closing cycles.
• It has been very reliable with little to no downtime.
• We have been able to stretch our IT dollars because the refresh rate on IBM Power can run for years. Also, we have been able to add many more VMs to physical machines than other platforms can run.

Incentivized

• Zero-downtime automated patching for kernel, hypervisor, and critical user-space libraries.
• Optimized–out of the box–for Oracle software.
• A single support offering includes Linux, virtualization, management, HA, and cloud-native computing tools.
• Available on-premise, in the cloud, and as Autonomous Linux.
• The system has a graphical and command-line interface, which makes it very complete and superior to other similar products.
• Security
• Compatible with multiple types of hardware. If we need to upgrade our hardware, the idea of not having to change OSs or platforms is a huge benefit.
• Managing Memory usage.

Incentivized