Essay on RAID: Redundant Array of Inexpensive Disks

Hard Disc Drive: a HDD is like a person's long term memory. it is used to store any type of data from files to applications. The data on a HDD is non-volatile, which means the data will stay on the disc even if the computer is switched off. A SSD is another way to store data, but it is faster than a HDD because there are no moving parts.

The use of data in today’s commercials is a vital role that cannot be overlooked. That is there is a need to backup data on physical mediums. The main mediums are hard-drive, flash drive, optical disc, and tape drive. There is multiply different version of each main type of medium. These different physical mediums store data in different ways. Fragmentation can also be an issue for some of these physical mediums. I will cover each medium in a little depth because of the different types available in today’s market.

It is not only responsible for storing data but also to provide security along with it. It also allows accessing data effectively; integrating data to enhance service intelligence, analysis based on the services required and most importantly increases the storage efficiency.

List and describe at least three types of storage that is typically included in all computer systems.

Reduce time to access the required data: DDBMS allows to store copies of a data in multiple branches.

RAID 1 will perform the operations to write as well as read the same data, which is called is called as mirroring. It is data is back-up, it might not be safe and have a high chance of risk to protect the data. RAID 1 is preferred for mirroring and duplexing. It has a high level of reliability and availability. It has disk in a mirrored array which has an identical image of user data. It prefers array with parallel access for achieving the high transfer rate and also to increase the performance for read-intensive application at high cost. If the data is being deleted unwantedly, then the data will also be removed from the mirrored copy. If the disk attacked by the virus the files

Partitioning strategy: The hierarchical partitioning of data into a set of directories – The placement and replication properties of directories is

Even though RAID 1 uses two disks for copying the data and when one disk gets failure other disk will work this uses the concept of mirroring. Because any modifications done to one disk will impact the other disk too. The RAID 1 uses the mirroring technique if the user deletes the data in one disk it automatically deletes the data in other drive too.

In the article “’In Case the Raid is Unsuccessful…’ Selling Dieppe to Canadians,” Timothy Balzer argues that press coverage following the event was skewed. The raid was not successful but was portrayed to the Canadian public as opposite. Balzer contends that censorship regulations were placed to control what information could be shared of the event. Three days prior to the raid, the ‘Combined Report’ was proposed by members of involved organizations. It outlined specific policies to suggest the raid be viewed as a required test, valuable lesson and a successful expenditure if failure occurred. Balzer states that reporters and Canadian public became critical of the events at Dieppe after learning of rising casualty numbers. New coverage

There are three types of storage devices. Magnetic storage devices store data as magnetic dots on spinning disks. These dots are written and read by an electromagnet. Examples of magnetic storage devices include Hard Drives (HDD) and Floppy Disks. Optical storage devices store data as coloured dots or small indentations on spinning disks. This data

Storage operation is completed using Primary and Secondary storage. Primary storage being temporary and holds data that would be waiting to be processed and Secondary storage being devices that permanently holds data. Two examples of storage would be a hard drive and a USB flash drive.

There are three general types of RAID, these are as follows: reverberating, replicating data to more than just a single disk, marking, which is the disserving of data over more than a single disk. Finally there is error rectification, which is where extra data is stored to permit issues to be observed and determined which the more common term for this is error tolerance. Variant RAID levels make use of some of these methods, relying on the system requisitions. The basic intentions of making use of RAID are to enhance

RAID drives are combined into single logical unit that provide data redundancy with increased overall system performance. The biggest advantage of using a RAID system is that it has fault tolerance ability that enables a system to perform all the functions, even when one or more hard drives have failed. There are multiple ways to distribute data in a RAID system that has been classified into different RAID levels.

Raid:You roll a dice and 5 or below,you raid and you get $20.6 or up ,you get raided and lose $20.

It is the type of disk in which the space is fixed. it doesn’t matter how much data you store.