41 links
When you delete a Kubernetes (K8s) cluster, you can sometimes end up with orphaned disks (persistent volumes) on your datastore. It can be difficult to identify them and they can take up unnecessar…
Driving down the cost of storage is the motivation behind our ongoing work to improve efficiency in vSAN. When you can store more data on the same physical hardware through software enhancements, everybody wins. vSAN in VMware Cloud Foundation (VCF) 9.1 delivers two new enhancements that improve storage efficiency: new data compression capabilities and the … Continued
VMware Cloud Foundation 9.1 was just announced, and that means a lot of new functionality has been released. Some of the features you already knew about, others may come as a surprise. I know Pete Koehler has a whole series he is going to release, so I am just going to introduce a couple of […]
Diskless Linux Boot
In this video, I upgrade my old 2-node Proxmox cluster into a proper 3-node Proxmox cluster with Ceph storage. I’ll show why the old QDevice setup was useful for learning, where it started to fall apart for real high availability, and how Ceph changes the way VM storage works in a Proxmox cluster. We’ll go through the Ceph installation, monitors, managers, OSDs, RBD storage, pool settings, placement groups, and finally a live migration test to see if the VM can move between nodes while staying online.
A practical field-focused walkthrough of building an All Apps Organization in VMware Cloud Foundation 9 using VCF Automation, with emphasis on regions, quotas, networking design, and why manual setup matters over quick start.
Healthchecks.io ping endpoints accept HTTP HEAD, GET, and POST request methods. When using HTTP POST, clients can include an arbitrary payload in the request body. Healthchecks.io stores the first 100kB of the request body. If the request body is tiny, Healthchecks.io stores it in the PostgreSQL database. Otherwise, it stores it in S3-compatible object storage. [...]
J.HOMMET.NET - Humain analogue dans un monde numérique.
Modern web interface for FreeBSD. Unified management of Bhyve VMs, Jails, ZFS storage, networking, and system monitoring.
VMware vSAN stands as a cornerstone of the modern Software-Defined Data Center (SDDC), offering robust, high-performance, and scalable storage solutions integrated directly into the hypervisor. As the
Storage Policy–Based Management (SPBM)is the backbone of how VMware vSAN delivers predictable, workload‑aligned outcomes. Instead of carving LUNs or managing fixed RAID groups the old-fashioned way,po
How to build a single global queue for distributed systems on object storage: Start with a single file on object storage, then add write batching, a stateless broker, and high-availability.
See how I built a Proxmox and Ceph home lab with 5 nodes, 17TB NVMe storage, dual 10Gb LACP, and Talos Kubernetes running on distributed Ceph.
Short blog about my experiences with Nutanix CE and which workarounds I needed.
The Nutanix Cloud Bible - A detailed narrative of the Nutanix architecture, how the software and features work and how to leverage it for maximum performance.
Author: Nemanja Ilic
We usually learn that 1 kilobyte is 1024 bytes, 1 MB is 1024 kilobytes, etc. But is this true or a kilobyte is precisely 1000 bytes?
Over the last couple of months, various new vSAN features were announced. Two of those features are around the Stretched Cluster configuration, and have probably been the number 1 feature request for a few years. Now that we have Site Takeover and Site Maintenance functionality available, I am starting to get some questions about the […]
How we built blockdiff, an open-source tool for rapid block-level diffs and snapshots of VM disks.
Sourcing data directly from diskISfaster than caching in memory. I brought receipts.
Because hardware got wider but not faster, the old methods don't get you there. You need new tools to use what is
Good news here for customers who use iSCSI in their current vSphere environments and are looking to move to VCF
If you have a Synology NAS and want to use an iSCSI LUN with Proxmox Backup Server, check out this post for the full details.
how to add read-write-many (RWX) volumes to a Pod in VKS which were initially created by the Volume Service
In this post, I will show you the steps to create a static volume via the Volume Service, and then create the appropriate manifests in your VKS cluster to make the volume available to Pods running on your cluster.
A step-by-step guide to configuring a vSAN ESA over RDMA cluster and a troubleshooting methodology.
Miniature rack builds, for portable or compact Homelabs.
When you read my blog articles and stuff – you may get the idea that everything I do – just happens to be right and that I succeed at every attempt. This article is here to remind you t…
A deep dive into KubeVirt for vSphere admins. Learn VM creation, storage, networking, and operations mapped to familiar VMware concepts.
Take an interactive journey through the history of IO devices, and learn how IO device latency affects performance.
the latest version of Data Services Manger (DSM) is now available. Version 2.2 has a wealth of new features
You've been lied to. You don't need the cloud – you can just run servers and save 10x your AWS costs. It's not that difficult.
I want my services to be sturdy, cheap & easy to maintain. I want very few moving parts, and I treat the hardware as disposable and unreliable. Ansible allows me to achieve a lot at very little cost.
Delivering consistent performance while maintaining data resiliency is a key tenet behind enterprise storage solutions. VMware vSAN is the industry leading distributed storage system built right into VMware vSphere, and is designed to offer the highest level of resiliency and performance, with the maximum amount of agility should hardware faults occur, or demands of the … Continued
In this post, we will investigate the performance of disk encryption on Linux and explain how we made it at least two times faster for ourselves and our customers!
Replacing Orange Livebox with another router is widely documented but too kludgy for my taste. I expose a cleaner setup.
Intro
I have been experimenting a lot over the past 18 months with containers and in particular, Kubernetes, and one of the core things I always seemed to get hung up on was part-zero - creating the VMs to actually run K8s. I wanted a CLI only way to build a VM template for the OS and then deploy that to the cluster.
It turns out that with Ubuntu 18.04 LTS (in particular the cloud image OVA) there are a few things need changed from the base install (namely cloud-init) in order to make them play nice with OS Guest Customisation in vCenter.
