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Aug
27th
Layer 7 is the Application Layer is the OSI layer closest to the end user, which means that both the OSI application layer and the user interact directly with the software application. This layer interacts with software applications that implement a communicating component. Such application programs fall outside the scope of the OSI model. Application [...]
Aug
26th
RAID, an acronym for redundant array of inexpensive disks or redundant array of independent disks, is a technology that provides increased storage reliability through redundancy, combining multiple low-cost, less-reliable disk drives components into a logical unit where all drives in the array are interdependent. from Wikipedia – http://en.wikipedia.org/wiki/RAID_1#RAID_1 RAID 1 A RAID 1 creates an [...]
May
10th
A storage area network (SAN) is an architecture to attach remote computer storage devices (such as disk arrays, tape libraries, and optical jukeboxes) to servers in such a way that the devices appear as locally attached to the operating system. A SAN typically is its own network of storage devices that are generally not accessible [...]
May
10th
A content delivery network or content distribution network (CDN) is a system of computers containing copies of data, placed at various points in a network so as to maximize bandwidth for access to the data from clients throughout the network. A client accesses a copy of the data near to the client, as opposed to [...]
May
10th
A distributed denial of service attack (DDoS) occurs when multiple systems flood the bandwidth or resources of a targeted system, usually one or more web servers. These systems are compromised by attackers using a variety of methods. Malware can carry DDoS attack mechanisms; one of the better-known examples of this was MyDoom. Its DoS mechanism [...]
May
10th
A single point of failure (SPOF) is a part of a system which, if it fails, will stop the entire system from working. They are undesirable in any system whose goal is high availability, be it a network, software application or other industrial system. The assessment of a potentially single location of failure identifies the [...]
May
7th
The Slashdot effect, also known as slashdotting, occurs when a popular website links to a smaller site, causing a massive increase in traffic. This overloads the smaller site, causing it to slow down or even temporarily close. The name stems from the huge influx of web traffic that results from the technology news site Slashdot [...]
