Tag: volume

Creating, Managing, and Securing Docker Volumes: Best Practices

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Docker volumes are essential for persisting data generated by and used by Docker containers. They provide a way to store data outside the container’s lifecycle, ensuring data durability and accessibility. This article will guide you through creating, managing, and securing Docker volumes, highlighting the most secure practices and how to configure persistent storage effectively.

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Using LVM Logical Volumes with KVM Guests via virsh

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When managing virtual machines (VMs) in a Linux environment, using Logical Volume Manager (LVM) with Kernel-based Virtual Machine (KVM) provides several benefits. LVM offers flexibility and control over storage allocation, while KVM, combined with virsh, offers a robust virtualization solution. This guide will walk you through the process of setting up LVM logical volumes for your KVM guests using virsh.

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Manage KVM Volumes With virsh And qemu-img

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KVM storage volumes are virtual disk images that can be assigned to virtual machines. They are stored on the host system and presented to the guest as virtual hard drives. The most commonly used image format for KVM storage volumes is qcow2 (QEMU Copy-On-Write 2). qcow2 is a sparse format that only allocates disk space as needed, allowing multiple volumes to efficiently share the same base image using copy-on-write. This saves disk space compared to raw disk images. qcow2 also supports features like snapshots, encryption, and compression.

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