What is a volume? Introduction to Logical Volume basics

A volume (also known as a logical volume) is a disk Management method for Windows 2000 that is designed to make hard disk space out of the management of a physical hard disk and make it easier to manage and distribute it more easily. For example, we have a 8GB hard disk and a 20GB hard drive, want to be divided into a 12GB and a 16GB two logical disk, the physical partition method can not do, but with the volume to manage it.

Each volume can be viewed as a logical disk, which can be a logical disk of a physical hard disk, that is, the D-disk, e-disk, which we see directly, can be a RAID 0 or RAID 1 array of two hard disks or parts of two hard drives, or more hard drives that make up other RAID 5 arrays, but on the surface (for example, in " My Computer or explorer) is a local disk. Volumes consist primarily of basic volumes on basic disks and dynamic volumes on dynamic disks, including boot volumes that store operating system and operating system support files (that is, Windows 2000-installed volumes) and system volumes (usually C disks) that load the required hardware files for Windows 2000. The boot volume and system volume can be the same volume. Dynamic volumes include simple volumes, spanned volumes, striped volumes, mirrored volumes, and RAID 5 volumes.

Volume

The storage area on the hard disk. The drive uses a file system, such as FAT or NTFS, to format the volume and assigns it a drive letter. Click the appropriate icon in Windows Explorer or My Computer to view the contents of the drive. One hard drive consists of many volumes, and one volume can span a number of disks

Basic volume

Primary partition or logical drive that resides on a basic disk

Boot volume

A volume that contains the Windows operating system and its supporting files. The boot volume can be a system volume, but not necessarily a system volume

Dynamic Volume

A volume that resides on a dynamic disk. Windows supports five types of dynamic volumes: simple volumes, spanned volumes, striped volumes, mirrored volumes, and RAID-5 volumes. A dynamic volume is formatted (for example, FAT or NTFS) by using a file system and has a drive letter assigned to it

Mirrored volumes

A fault-tolerant volume that replicates data on two physical disks. By using two identical volumes (known as mirrors), the mirrored volume provides data redundancy to replicate the information contained on the volume. The mirror is always on another disk. If one of the physical disks fails, the data on the failed disk will not be available, but the system can continue to operate in a mirror on another disk. You can create mirrored volumes only on dynamic disks.

Simple volume

A dynamic volume consisting of disk space on a single dynamic disk. A simple volume can consist of a single area on a disk or multiple regions linked together on the same disk. You can extend a simple volume on the same disk, or expand to another disk. If you extend a simple volume across multiple disks, the volume becomes a spanned volume. You can only create simple volumes on dynamic disks. Simple volumes are not fault tolerant, but you can mirror them to produce a mirrored volume.

Cross-Zone volume

A volume consisting of disk space on multiple physical disks. You can increase the capacity of a spanned volume by extending it to other dynamic disks. You can create spanned volumes only on dynamic disks. Spanned volumes cannot be fault tolerant or mirrored. A volume in which striped volumes store data on two or more physical disks in a striped form. Data on a striped volume is allocated alternately, evenly (in striped form) across disks.

Striped Volume

Are the best performing volumes on all available Windows, but they do not provide fault tolerance. If the disk on the striped volume fails, the data on the entire volume is lost. You can create striped volumes only on dynamic disks. Striped volumes cannot be mirrored or extended.

System Volume

A volume that contains the hardware-specific files used to load Windows with the BIOS on the x86 computer. The boot volume can be a system volume, but not necessarily a system