create vdo volume

How to Create a VDO Volume On a Storage Device on RHEL 8

1. Step 1: Install the VDO in RHEL 8. To get started, log in to your server and update your RHEL using the dnf command. ...
2. Step 2: Create a VDO Volume in RHEL 8. ...
3. Step 3: Probing the New VDO Volume. ...
4. Step 4: Partitioning the VDO Volume. ...
5. Step 4: Formatting and Mounting File Systems.

1. What is VDO volume?
2. What is VDO logical size?
3. What is VDO slab size?
4. How install VDO Linux?
5. What is VDO device?
6. What is a VDO?
7. How does VDO save space?
8. What is KMOD KVDO?
9. What is Stratis in Linux?
10. What is VDO used for?
11. What is Virtual Disk Optimizer?
12. Does XFS support compression?

What is VDO volume?

Virtual Data Optimizer (VDO) provides inline data reduction for Linux in the form of deduplication, compression, and thin provisioning. When you set up a VDO volume, you specify a block device on which to construct your VDO volume and the amount of logical storage you plan to present.

What is VDO logical size?

It is usually larger than the available physical size. ... VDO currently supports any logical size up to 254 times the size of the physical volume with an absolute maximum logical size of 4PB.

What is VDO slab size?

Each slab is a contiguous region of the physical space. All of the slabs for a given volume have the same size, which can be any power of 2 multiple of 128 MB up to 32 GB. The default slab size is 2 GB in order to facilitate evaluating VDO on smaller test systems.

How install VDO Linux?

Introduction

1. Installation. ...
2. Step 2: Create a VDO Device. ...
3. Step 3: Investigate the New VDO Volume. ...
4. Step 4: Use the VDO Volume as a Normal Disk Device. ...
5. Step 5: Create and Mount Filesystems. ...
6. Step 6: Put Some Data on the Filesystems and Inspect the VDO Volume. ...
7. Step 7: Fill Up the File systems! ...
8. Step 8: The Boring (But IMPORTANT!)

What is VDO device?

VDO stands for Virtual Data Optimizer. It's a Linux device-mapper driver that provides innate storage capabilities to underlying block devices like deduplication, compression and thin-provisioning. There's only a few elements to VDO: kernel drivers and some user-space tools.

What is a VDO?

VDO Stands For : Video Display Operator.

How does VDO save space?

The idea of deduplication is quite simple: to remove copies of duplicate data and only remain with one copy. When an identical file is added on a block device, it is marked as a duplicate and the original file is referenced instead. In so doing, VDO helps is saving the block volume's space.

What is KMOD KVDO?

kmod-kvdo - Kernel Modules for Virtual Data Optimizer

Virtual Data Optimizer (VDO) is a device mapper target that delivers block-level deduplication, compression, and thin provisioning. This package provides the kernel modules for VDO.

What is Stratis in Linux?

Stratis is a user-space configuration daemon that configures and monitors existing components from Linux's underlying storage components of logical volume management (LVM) and XFS filesystem via D-Bus.

What is VDO used for?

VDO optimizes the data footprint on block devices by reducing disk space usage on block devices, and minimizing the replication of data, saving disk space and even increasing data throughput. VDO includes two kernel modules: kvdo module – Transparently control data compression, uds module – Handles data deduplication.

What is Virtual Disk Optimizer?

VDO is a kernel module that can save disk space and reduce replication bandwidth. VDO sits on top of any block storage device and provides zero-block elimination, deduplication of redundant blocks, and data compression.

Does XFS support compression?

There are 3 filesystems that can do transparent compression: NTFS, ZFS, btrfs. ... XFS could really benefit from compression support.