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.

What is a LUN in SAN storage?

LUN stands for “Logical Unit Number”. It is a virtual address to a device in a SCSI environment. The short version here is that if you have a SCSI RAID device, each associated volume will have its own LUN assignment. This address tells the system which volume to send and read data from when it’s addressed.

What is LUN and Datastore?

A LUN is a logical volume on a storage system, which usually is presented to one ore more hosts. A datastore is a partition on a disk or LUN which is formatted with VMware’s VMFS filesystem.

What is a network volume?

Network volumes are persistent block devices suitable for scaling volume space without changing the basic volume. Three-fold replication of the volumes ensures high data safety. A network volume can be created together with the server or, unlike the local volume, separately from the server.

What is the purpose of a LUN?

LUNs are used to identify subsets of data in a disk so that the computing devices using them can execute operations.

What is the use of LUN in storage?

In computer storage, a logical unit number, or LUN, is a number used to identify a logical unit, which is a device addressed by the SCSI protocol or by Storage Area Network protocols that encapsulate SCSI, such as Fibre Channel or iSCSI.

What is the difference between simple volume and primary volume?

What’s the difference between simple volume and primary partition? The simple volume can only be created on a dynamic disk while the primary partition can only be created on a basic MBR or GPT disk.

What is difference between VMFS and NFS?

Like we stated above, VMFS is a block level file system, while NFS is a file level file system. When creating a VMFS Datastore, the VMFS file system is created by the vSphere, while the NFS file system is on Storage side and is only mounted has a shared folder on the vSphere.