Openshift is a RHEL implementation of Kubernetes and container management.
and a stack of tools that all work together.
For certain workloads, containers are a fantastic way to go.
And VMware HAs been Gutted by Broadcom.
On Tue, Jul 2, 2024 at 7:42 PM Snyder, Alexander J via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:
> Hi Greg --
>
> Yes, RedHat OpenShift is typically used in conjunction with Kubernetes and
> containers, but can also host "classic" VMs, although there is some work
> involved ... It's not 1:1.
>
> My work, APS, is also considering this switch.
>
> --
> Thanks,
> Alexander
>
> Sent from my Google Pixel 7 Pro
>
> On Tue, Jul 2, 2024, 14:09 greg zegan via PLUG-discuss <
> plug-discuss@lists.phxlinux.org> wrote:
>
>> speaking of VMs I see they are migrating from VMWare to OpenShift from
>> Red Hat at work.
>> Anyone know more about this? Is it cost based?
>> no one is saying why here.
>>
>> On Tuesday, July 2, 2024 at 02:05:11 PM MST, Ryan Petris via PLUG-discuss
>> <plug-discuss@lists.phxlinux.org> wrote:
>>
>>
>> I think the option you're looking for is called "affinity":
>>
>>
>> https://pve.proxmox.com/pve-docs/pve-admin-guide.html#qm_cpu_resource_limits
>>
>> With the *affinity* option, you can specify the physical CPU cores that
>> are used to run the VM’s vCPUs. Peripheral VM processes, such as those for
>> I/O, are not affected by this setting. Note that the *CPU affinity is
>> not a security feature*.
>>
>>
>> That said, I'm wondering why you're wanting to do this, specifically what
>> you think you're going to gain over just allowing the kernel to schedule
>> things the way it normally does.
>>
>> For instance, it's not going to lock that core specifically for use to
>> that VM; other processes can still use that core. You'd literally have to
>> set the affinity of every single process on your system to specific cores
>> which would be an extreme pain. You still wouldn't have much control over
>> which cores receive interrupts and whatnot so even then you still wouldn't
>> have complete control.
>>
>> Just let the scheduler do its thing, otherwise you're likely going to end
>> up with weird issues that no one can help with or explain.
>>
>> On Tue, Jul 2, 2024, at 1:51 PM, Snyder, Alexander J via PLUG-discuss
>> wrote:
>>
>> I have a VM running with QEMU on Debian, v is a TrueNAS. Although they
>> give you a GUI to select options, it is my understanding that it's just
>> pure QEMU running on the backend.
>>
>> In this VM, I have vCPUs configured.
>>
>> --
>> Thanks,
>> Alexander
>>
>> Sent from my Google Pixel 7 Pro
>>
>> On Tue, Jul 2, 2024, 13:43 Keith Smith via PLUG-discuss <
>> plug-discuss@lists.phxlinux.org> wrote:
>>
>> Hi,
>>
>> I've started to skim the Ubuntu docs on QEMU. It talks about vCPUs.
>> I've run both VirtualBox and Proxmox. Seems both VirtualBox and Proxmox
>> only allow for CPU allocation at the CPU level.
>>
>> I'd really like to be able allocate vCPUs.
>>
>> Do I understand this correctly?
>>
>> Thanks!!
>> Keith
>>
>>
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--
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.
Stephen
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