Infrastructure Operations

Virtualization Management (KVM & OpenVZ)

Expert hypervisor management for KVM and OpenVZ compute nodes. Bridged networking, LVM/ZFS storage pools, resource tuning, and live VM troubleshooting.

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Zero-Credential Intake

L2 / L3 Escalations

24/7 SLA Available

hypervisor / virsh-cli | kvm-node-01.servercare360.net

Linux Diagnostic CLI

root@kvm-node-01:~# virsh list --all

Id Name State -------------------------- 1 vps-101-al running 2 vps-102-ub running 3 vps-103-win running

root@kvm-node-01:~# virsh dommemstat vps-101-al

actual: 8388608 KiB usable: 6291456 KiB available: 8388608 KiB (Ballooning OK)

root@kvm-node-01:~#

Supported Platforms & Technologies:

KVM / QEMU OpenVZ 7 libvirt (virsh) Linux Bridges (br0) Open vSwitch ZFS Storage Pools LVM Thin Pools QCOW2 / RAW Images virtio

Engineering Scope & Deliverables

Concrete administration, tuning, and incident resolution capabilities for this environment.

KVM

KVM Hypervisor Host Administration

Linux KVM / QEMU virtualization management, hardware virtualization (VT-x/AMD-V) pass-through, bridged network adapters, and virsh CLI management.

OpenVZ

OpenVZ / Virtuozzo Container Nodes

OpenVZ 7 container node operations, kernel memory allocation, vzctl / prlctl command administration, and container density optimization.

Networking

Bridged & Routed Virtual Networking

Configuring Linux bridges (br0), Open vSwitch (OVS), IPv4/IPv6 subnet routing, MAC address IP binding, and ARP table troubleshooting.

Storage

Storage Pools & LVM Volume Management

LVM thin pools, ZFS zpools, Ceph block storage integration, RAW/QCOW2 disk image allocation, and live guest volume expansions.

Triage

Hypervisor Node Crash Recovery

Diagnosing compute node kernel crashes, unblocking stuck VM disk I/O threads, repairing damaged QCOW2 images, and live host migrations.

Performance

Resource Overselling & Fair Allocation

Tuning CPU pinning, memory ballooning (virtio-balloon), KSM (Kernel Samepage Merging), and disk I/O rate limits to prevent 'noisy neighbors'.

Zero-Credential Form Policy

Please do not submit root passwords, private SSH keys, sudo tokens, or database secrets through website intake forms. When you initiate an engagement, our engineers establish an ephemeral encrypted exchange channel.

Engineering FAQ

Frequently Asked Questions

Clear answers about operational models, access security, and engineering scope.

01 What is the key architectural difference between KVM and OpenVZ?

KVM provides true hardware-assisted virtualization with independent kernels for each virtual machine (supporting custom kernels, Docker inside VM, and Windows). OpenVZ uses OS-level containerization where all containers share the host's Linux kernel.

02 Can you manage bare-metal hypervisor nodes running Proxmox or raw CentOS/AlmaLinux KVM?

Yes. We configure and manage standalone Linux KVM nodes, Proxmox VE clusters, and OpenVZ 7 hosts via CLI and control panels.

Infrastructure Support

Ready to stabilize and optimize your virtualization management (kvm & openvz)?

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