Virtual Machine

Virtual machines are host instances running on private clouds built using virtualization technology.

📄️ Create Virtual Machine

Introduction to how to create virtual machines in local IDC environments.

📄️ Login to Virtual Machine

After creating a virtual machine, login methods are roughly divided into the following types:

📄️ Delete Virtual Machine

Frontend Operations

📄️ Clear Virtual Machine Record

Clear virtual machine database record (does not actually delete virtual machine), used for cases where virtual machine records are abnormal or deletion fails.

📄️ QGA Usage Introduction

Function Introduction

📄️ Migrate Disk Storage

Introduction to how to migrate virtual machine disks to another storage.

📄️ Virtual Machine Migration

Introduction to how to migrate virtual machines and related considerations for virtual machine migration.

📄️ Change Disk Driver

Introduction to how to change virtual machine disk drivers.

🗃️ Device Passthrough

6 items

🗃️ Performance Testing

2 items

📄️ Use Huge Pages

Introduction to how to enable huge pages on hosts for virtual machines to use.

📄️ Debug Virtual Machine Startup Parameters

Introduction to how to debug and modify KVM virtual machine command line parameters.

🗃️ Import from Other Platforms

3 items

📄️ Disk Rate Limiting

This article introduces how to configure disk rate limiting. Disk rate limiting can limit IOPS and BPS for each disk of virtual machines.

📄️ Virtual Machine Clock

Virtual machine clock is provided by virtual device -rtc base=utc,clock=host,driftfix=none. Virtual machine hardware base clock is based on host's UTC time.

📄️ Daemon Virtual Machine

This section introduces how to set virtual machines to start automatically with the host operating system. Virtual machine auto-start is achieved by setting the virtual machine as a daemon virtual machine. If a virtual machine is set as a daemon virtual machine, every time host-agent starts, it will ensure that this virtual machine is in running state.