iSCSI and Windows have been awarded the best high availability in servers. They also received the best performance and better virtualization.
XenServer from Citrix also has a high-availability option.
Linux based servers typically offer the best high availability clusters. Many hosting companies offer linux as an option.
The benefits of high availability solutions for SQL servers are a minimized impact on users during application downtimes due to hardware or software failure.
A content delivery network operator are in charge of hosting servers, The primary goal is to provide high availability high performance of the servers to customers.
Someone can do a number of things with a high availability software such as: improving system redundancy, reducing the downtime of servers, and better allocation of system resources.
High availability servers can be bought from eBay, Amazon, VM Ware, Stratus, Dell, Microsoft, Intel, IBM, Red Hat, Symantec, Oracle, Samba and Tech Republic.
High availability servers provide business with a level of security when it comes to the functionality of their computer systems. It allows business to know that their systems are fully supported and stable. I can't find specific costs, but this service can be contracted out, saving the company money and time.
A high availability server is a well maintained server (computer) where the components are specially tested and selected to maximize up-time as much as possible. Backup and failover solutions are in place and quickly implemented. Companies offering this service advertise as much as 99.999 percent availability of servers.
A server cluster is a group of independent servers running Windows and working together as a single system, to ensure high availability of services for clients.
Rackable Systems sells many computer hardware and software components, including visualization products, servers and high performance computing products.
Stratus is just one company that produces this type of software. They offer the Avanced with a shared storage network (SAN)which runs Windows applications.
A constant cluster is a group of servers or nodes in a cluster that remain fixed and do not change dynamically. These servers typically handle specific roles in the cluster and remain operational throughout the cluster's lifecycle. Constant clusters are used in high availability setups to ensure that critical services remain available.
High availability cluster is also known as HA Clusters or Failover Clusters. They are generally used to provide high availability of services which the cluster provides.