for data protection and high availability? RAID 0 is data striping. This means that data will appear to a user as one logical disk but all the data is distributed among two physical disks. If one disk fails operation cannot continue and data is lost because it is only stored in one place. RAID 1 uses two disks that are mirrored copies of each other. If one disk fails‚ operation can continue and no data is lost. 3. Explain the process of data recovery in case of a drive failure in RAID 5
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tapes‚ magnetic disks‚ optical discs‚ Flash RAM‚ and solid-state drives (SSD) in terms of: a. Speed b. Volatility c. Access methods d. Portability e. Cost f. Capacity A magnetic tape is a data storage device which typically stores digital information. The magnetic tape uses digital recording methods and is shaped as a cassette or a cartridge. The tape driver is a device that records the data on to the magnetic tape. Typically‚ the speed of the magnetic depends on the capacity of the drive
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Chapter 1 Client Server Technology: An Introduction Client/Server technology is a means for separating the functions of an application into two or more distinct parts. The client presents and manipulates data on the desktop computer. The server acts like a mainframe to store and retrieve protected data. Together each machine can perform the duties it is best at. Client-server computing or networking is a distributed application architecture that partitions tasks or work load between service
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Cloud storage is a model of networked online storage where data is stored on multiple virtual servers‚ generally hosted by third parties‚ rather than being hosted on dedicated servers.Hosting companies operate large data centers; and people who require their data to be hosted buy or lease storage capacity from them and use it for their storage needs. The data centeroperators‚ in the background‚ virtualize the resources according to the requirements of the customer and expose them as storage pools
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Difference between RAM and ROM RAM(Random Access Memory) ROM(Read only Memory) 1. RAM is Random Access Memory. 1. ROM is Read Only Memory 2. RAM is the memory available for the operating system‚ programs and processes to use when the computer is running 2 . ROM is the memory that comes with your computer that is pre-written to hold the instructions for booting-up the computer. 3. RAM requires a flow of electricity to retain data (e.g. the computer powered on). 3 . ROM will retain
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Sana ’a university Collage of Engineering Department of Electrical Engineering Digital Signal Processors Mohammed Mohammed Al-Sanabani | 503/2008 | Telecom | 4th Level Abstract During the past decade digital signal processors (DSPs) have hit critical mass for high-volume applications. Today‚ the entire digital wireless industry operates with DSP-enabled handsets and base stations. This paper gives a plain introduction to DSP devices. The discussion focuses on the digital electronics
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the CIO or server manager trying to decide which version of Windows Server he needs to install and license‚ Microsoft has made life easier. There are now just two versions: Standard and Datacenter. The key difference between the two is the number of virtual machines you can run. For a medium-sized business with limited hardware and a few instances of key servers‚ Windows Server 2012 Standard is the right choice. Large‚ highly virtualized environments with a requirement to scale out servers quickly
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Most organization today are moving to client server architectures. Client server attempt to balance the processing between the client and the server by having both do some of the logic. In these networks‚ the client is responsible for the presentation logic‚ while the server is responsible for the data access logic and data storage. The application logic may reside on the client on the client or on the server‚ or it may be split between both. These are many ways in which the application logic
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Storage Space Outline -Bits and Bytes -storage devices Hard drives (internal‚ external‚ network) Flash drives Cloud Storage -Technologies currently in development -Summary The purpose of this paper is to shed some light on computer storage devices. In order to understand how computer storage devices work‚ I will have to discuss bits and bytes. According to About.com’s contributing author
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Disc (BD) is an optical disc storage medium designed to supersede the DVD format. The plastic disc is 120 mm in diameter and 1.2 mm thick‚ the same size as DVDs and CDs. Blu-ray Discs contain 25 GB per layer‚ with dual layer discs (50 GB) being the norm for feature-length video discs. Triple layer discs (100 GB) and quadruple layers (128 GB) are available for BD-XL re-writer drives.[2] The major application of Blu-ray Discs is as a medium for video material such as feature films. Besides the hardware
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