What is a volume in Linux?

The term volume in Linux is related to the Logical Volume Manager (LVM), which can be used to manage mass storage devices. A physical volume is a storage device or partition. A logical volume created by the LVM is a logical storage device which can span multiple physical volumes.

What is a volume in storage?

A volume is a storage device, such as a fixed disk, floppy disk, or CD-ROM, that is formatted to store directories and files. A large volume can be divided into more than one logical volume, also called a partition.

Is a volume the same as a partition?

Storage volume vs. partition

A partition is a logical division of a hard disk. … The main difference between a storage volume and partition is the type of disk used. A volume is created on a dynamic disk — a logical structure that can span multiple physical disks — while a partition is created on a basic disk.

What is a data volume?

A data volume is simply the amount of data in a file or database. You would calculate the amount of data storage for a website by figuring out how much data comes in per month, and multiply that times the number of months you expect your web site to grow.

What is a volume group in Linux?

More Linux resources

A volume group ( VG ) is the central unit of the Logical Volume Manager (LVM) architecture. It is what we create when we combine multiple physical volumes to create a single storage structure, equal to the storage capacity of the combined physical devices.

How do I find the volume?

In math, volume is the amount of space in a certain 3D object. For instance, a fish tank has 3 feet in length, 1 foot in width and two feet in height. To find the volume, you multiply length times width times height, which is 3x1x2, which equals six. So the volume of the fish tank is 6 cubic feet.

What is the difference between drive and volume?

A physical volume is a storage device or partition. A logical volume created by the LVM is a logical storage device which can span multiple physical volumes. A drive is a physical block disk. For example: /dev/sda .

What does volume mean?

(Entry 1 of 3) 1 : the degree of loudness or the intensity of a sound also : loudness. 2 : the amount of space occupied by a three-dimensional object as measured in cubic units (such as quarts or liters) : cubic capacity — see Metric System Table, Weights and Measures Table.

What is simple volume?

Simple volumes are the dynamic-disk equivalent of the primary partitions and logical drives found on basic disks. … You can increase the size of a simple volume to include unallocated space on the same disk or on a different disk. The volume must be unformatted or formatted by using NTFS.

What is new volume?

“New Volume” is just a standard name that an english version of Windows uses for drives that have an empty drive name. … Local Disk: Any partition that is on any kind of mass storage that is currently wired up with your computer. It can be on a built in harddrive or on a USB-Stick.

What is volume in big data?

The volume of data refers to the size of the data sets that need to be analyzed and processed, which are now frequently larger than terabytes and petabytes. … In other words, this means that the data sets in Big Data are too large to process with a regular laptop or desktop processor.

What is volume in cloud?

Cloud Volumes ONTAP, a cloud-based data management service built on NetApp ONTAP storage software, offers a superior universal storage platform that addresses your cloud data needs. … Cloud Volumes ONTAP provides a data storage solution on both AWS and Azure that fits many different customer requirements.

What is a NetApp volume?

Volumes are data containers. In a NAS environment, they contain file systems that hold user data that is accessible using one or more of the access protocols supported by Data ONTAP, including NFS, CIFS, HTTP, FTP, FC, and iSCSI. … Volumes depend on their associated aggregate for their physical storage.

How do you create a physical volume?

1) Create Physical Volume

Physical volume is the actual storage device that will be used in the LVM configuration. It can be an entire disk, a partition on disk or a LUN on the SAN. You can use pvcreate to create the physical volume. In this example I have added two disks /dev/sdb and /dev/sdc of 1 GB each.

How do I create a group volume in Linux?


  1. Create a LVM VG, if you do not have an existing one: Log into the RHEL KVM hypervisor host as root. Add a new LVM partition using the fdisk command. …
  2. Create a LVM LV on the VG. For example, to create an LV called kvmVM under the /dev/VolGroup00 VG, run: …
  3. Repeat the above VG and LV steps on each hypervisor host.

What is a physical volume?

A physical volume is a collection of disk partitions used to store all server data. Physical volumes have a maximum size of 16 TB. Because a physical volume can contain any portion of one or more disks, you must specify several characteristics of a physical volume when creating it.

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