Hello,
Anyone know about server clustering.
please post your comment for me.
Thanks
What is server clustering?
-
freyacooper
- Posts: 12
- Joined: Thu Jan 22, 2015 4:01 pm
Re: What is server clustering?
A cluster server consists of two or more servers working together to provide a higher level of availability, reliability, and scalability than can be achieved by using a single server.
Protection
Cluster technologies protection against three specific types of failure:
• System and hardware failures
• Site failures
• Application and service failures
Management
Each server owns and controls its local devices and has a copy of the operating system and the applications or services. Server clusters are planed so that the servers in the cluster work together to guard data, keep applications and services running after failure on one of the servers, and maintain consistency of the cluster configuration eventually.
Required Technologies
• Network technologies that use IP-based protocols
• A name resolution service
• The Active Directory service
Types
There are three types of server clusters, based on how the cluster system :
• Single quorum device cluster
• Majority node set cluster
• Local quorum cluster
Single Quorum Device Cluster
This cluster also called the standard quorum cluster. In this type of cluster there are multiple nodes with one or more cluster disk arrays, and a connection device, that is, a bus. Each disk in the array is owned and managed by only one server at a time.
Majority Node Set Cluster
In a majority node set cluster, each node maintains its own copy of the cluster configuration data. The quorum resource keeps configuration data consistent across the nodes. For this reason, majority node set clusters can be used for geographically dispersed clusters.
Local Quorum Cluster
It also called a single node cluster, has a single node and is often used for testing.
Protection
Cluster technologies protection against three specific types of failure:
• System and hardware failures
• Site failures
• Application and service failures
Management
Each server owns and controls its local devices and has a copy of the operating system and the applications or services. Server clusters are planed so that the servers in the cluster work together to guard data, keep applications and services running after failure on one of the servers, and maintain consistency of the cluster configuration eventually.
Required Technologies
• Network technologies that use IP-based protocols
• A name resolution service
• The Active Directory service
Types
There are three types of server clusters, based on how the cluster system :
• Single quorum device cluster
• Majority node set cluster
• Local quorum cluster
Single Quorum Device Cluster
This cluster also called the standard quorum cluster. In this type of cluster there are multiple nodes with one or more cluster disk arrays, and a connection device, that is, a bus. Each disk in the array is owned and managed by only one server at a time.
Majority Node Set Cluster
In a majority node set cluster, each node maintains its own copy of the cluster configuration data. The quorum resource keeps configuration data consistent across the nodes. For this reason, majority node set clusters can be used for geographically dispersed clusters.
Local Quorum Cluster
It also called a single node cluster, has a single node and is often used for testing.