Basic VS Dynamic Disk Basic can create Primary

Basic VS Dynamic Disk Basic can create (Primary, extended and logical potation) Dynamic disk (Volumes like simple, spanned stripped, Mirrored and RAID 5 volumes ) It support two type of fault tolerance Mirrored and RAID 5

• Primary, Extended, and Logical Partitions • Any partition that has an operating system installed to it is called a primary partition • This means a computer can have up to four primary partitions or three primary partitions and one extended partition.

• An extended partition can't hold data in and of itself. Instead, an extended partition is simply the name used to describe a container that holds other partitions that do hold data, which are called logical partitions.

• A simple volume uses free space from a single disk. It can be a single region on a disk or consist of multiple, concatenated regions. A simple volume can be extended within the same disk or onto additional disks. If a simple volume is extended across multiple disks, it becomes a spanned volume. • A spanned volume is created from free disk space that is linked together from multiple disks. You can extend a spanned volume onto a maximum of 32 disks. A spanned volume cannot be mirrored and is not fault-tolerant.

• A striped volume is a volume whose data is interleaved across two or more physical disks. The data on this type of volume is allocated alternately and evenly to each of the physical disks. A striped volume cannot be mirrored or extended and is not fault-tolerant. Striping is also known as RAID-0. • A mirrored volume is a fault-tolerant volume whose data is duplicated on two physical disks. All of the data on one volume is copied to other disks for storage. If one of the disks fails, the data can still be accessed from the remaining disk. A mirrored volume cannot be extended. Mirroring is also known as RAID-1.

• A RAID-5 volume is a fault-tolerant volume whose data is striped across an array of three or more disks. Parity (a calculated value that can be used to reconstruct data after a failure) is also striped across the disk array. If a physical disk fails, the portion of the RAID-5 volume that was on that failed disk can be re-created from the remaining data and the parity. A RAID-5 volume cannot be mirrored or extended.