subject: Console Access Serveraccess Anytime, Anywhere [print this page] When the number of servers and boxes in a network begins to grow, it is no longer practical to retain one management console per box, as it becomes desirable to access all the console ports without having to move from one terminal to another. A console access server allows the IT administrator to conveniently access all console ports in a network or server farm from a single station.
An efficient console management solution should enable console access from anywhere, at any time, locally or remotely. A console access server provides the ability to access your console ports remotely another reason for its popularity. With multiple serial lines for connection to the console ports, and at least one port for connection to the network, these units provide access that is east, fast and convenient, not to mention secure. With more and more critical applications being executed via server farms rather than a single mainframe, console access servers have become indispensable in any large computer system.
So how you do select the right server for your application? Following is a list of features to look for when considering your options.
Because anyone who gains access to the console port of servers and routers can potentially take control of the entire network, security features are crucial. A console access server should allow easy, fast and convenient access for IT administrators, but must be able to keep intruders out.
A console access server should support multiple-port addressing methods and allow local or server-based authentication. Depending on the product selected, you may be able to customize the functionality to your own needs.
Because rack space in a data center is expensive, having the maximum number of ports in the minimum space is essential. Businesses can choose from a number of ports ranging from 16 or 64 ports per chassis. Some products allow stacking multiple boxes to create larger virtual boxes.
The console access server you choose should integrate well with your rack and cable management systems. Some products offer clumsy external cables or won't easily fit in a rack.
Before purchasing a console access server, make sure that the product has a modern design, is cost-effective and can be updated through a software download.
Following are the three categories of console access servers to consider when making your decision:
Traditional Console Access Servers: These products are expensive and complex and have not been able to keep up with the advancements required when increasing the size of server farms. Instead, they focus on hardware rather than software-based modularity, resulting in poor connectivity and security features.
Generic Terminal Servers: These servers typically have strong internet connectivity and security capability, but lack targeted console features.
PC-based Terminal Servers: With the availability of PC hardware and Open Source operating systems, building a terminal server by installing a multi-port serial board in a PC becomes a viable proposition for some users. However, these units are weak in port density and integration.
