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-   -   what is clustering? (http://www.datacentertalk.com/forum/showthread.php?t=30707)

bell 12-27-2011 12:08 PM

what is clustering?
 
hello,

can someone explain what clustering is?

KenB 12-27-2011 03:51 PM

Wikipedia is your friend: http://en.wikipedia.org/wiki/Cluster_%28computing%29


Ken

mamatha 12-28-2011 11:17 AM

what is clustering?
 
A cluster is two or more interconnected computers that create a solution to provide higher availability, higher scalability or both.Clustering can be implemented at different levels of the system, including hardware, operating systems, middleware, systems management and applications.

sweetgreen 12-29-2011 06:39 AM

Quote:

Originally Posted by mamatha (Post 44683)
A cluster is two or more interconnected computers that create a solution to provide higher availability, higher scalability or both.Clustering can be implemented at different levels of the system, including hardware, operating systems, middleware, systems management and applications.

that sounds very much like virtual servers, where you connect the servers together to give an illusion that there is only one large server taking all the load.

whcdavid 01-10-2012 01:23 PM

If your application needs to run without any failure, then you need a cluster solution. For an example, if you are running trading application, your application shouldn't go down, if it goes down, you will loose $x million dollars.
High availability ismore and more important in critical systems such as networked storage. Demands on these systems include not only ensuring
the availability of important data, but also efficient resource
sharing of the relatively expensive components.

Basically, if one of the systems goes down, other system will take over it and will run the application.

HostAddonLtd 01-30-2012 07:30 AM

In a computer system, a cluster is a group of servers and other resources that act like a single system and enable high availability and, in some cases, load balancing and parallel processing.

prywordpress 10-17-2012 08:47 AM

Clustering is a popular strategy for realize similar processing applications because it enables companies to leverage the investment already made in PCs and workstations. The advantage of clustering computers for high availability is seen if one of these computers fails, another computer in the cluster can then assume the workload of the failed computer.

henrycmurray 02-12-2013 08:11 AM

are you asking about computer cluster or windows cluster?

Josh-A 05-07-2013 01:19 PM

If this is about a cloud cluster, then a cloud cluster consists of multiple servers that support the functioning of the website irrespective of the website traffic. A clustered setup is beneficial to a high traffic website because even if one server fails, another server is available to balance the load and ensure the smooth functioning of the website.This is a great option for the online store websites as for them, downtime is something that might have a direct effect on the business.

jaden07 05-20-2013 03:36 AM

Quote:

Originally Posted by bell (Post 44654)
hello,

can someone explain what clustering is?

Clustering, in the context of databases, refers to the ability of several servers or instances to connect to a single database. An instance is the collection of memory and processes that interacts with a database, which is the set of physical files that actually store data.


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