infra | cloud | opensource
This is simple and straight forward. Below snippets are from a Cisco 3120X Blade Switch. Check the interface details on port Gi1/0/1. ams-101-sw1>enams-101-sw1#sh run | begin interface GigabitEthernet1/0/1 interface GigabitEthernet1/0/1 switchport access vlan 401...
There are several cases a PV (PhysicalVolume) appear as Failed in OpenShift or Kubernetes cluster. Once of the reason is wrong ClaimRef by which PV will mark as claimed but actually not in use....
As we know OpenShift clusters are bundled with multiple compute nodes, master nodes, infra nodes etc, it’s not a big deal to manage node maintenance for OS patching kind of activities. But we need...
Since OCP 3.11 is available now, you may refer below documents for OpenShift Container Platform 3.11 Installation on different infrastructure or platforms. Those are very quick documents but already included all details including installation...
Usually application owner or project owner will specify the quota settings (Memory and CPU) during project creation. But sometimes, they realize that the requested resource is not enough to run their applications. Usually we...
There might be situations like you forgot or lost your iDRAC login credentials and you don’t have an option to access iDRAC since the server is in a remote location. Using local RACADm tool...
Dell has a beautiful tool for remote server management called iDRAC which is almost same like HPE iLO, but with different features. You can access iDRAC using GUI or via ssh. But what if...
Recently we have noticed some issue with one of our filesystem having issue and realized wrong flags on partition which was used as a Physical Volume (PV) in LVM (Logical Volume Management). You must...
When we have issue with container and we are not sure which pod the container belongs to; we can find the pods details as below. Use case : we have some zombie process running...
I have explained how to to use vFlash card as an easy boot method here. If you are not able to see a vFlash card (or vFlash card tab is missing in iDRAC screen...
We will have requirements, where customer need to configure multiple projects but they want pods inside those projects to communicate each other. Since each projects will have its own netnamespace, communication will not happen...
