The type of KVM switch Mainly refers to terminal type which it controls, if the terminal is the main controlled computer can be called multi-type computer-controlled. KVM areas has also been extended to serial devices such as hubs, routers, storage devices and UPS and so on. Sophisticated KVM solutions allow multiple users in any location, any time access to thousands of servers and network equipment. Moreover, if the event record, remote power management, multi-level user security permissions management, environmental alert system, Cat5 cable and other functions to help IT managers from any place they want to manage the day-to-day security operations. Makes it easy to access, monitor and manage all of your IT equipment. Known as the all-round management of the data center (Total Data Center Management, TDCM). It is a centralized management of IT equipment can increase the normal operation of the time (because they can reduce the time to visit and diagnosis), significant savings as well as the floor area of unnecessary equipment and manpower, no need to consider the efficiency of the network can access to all equipment, can be the ultimate way to enhance the competitiveness of your business.
Switch input interface is the main parameter, refer to the input of the interface and interface number of ways. There are 4 switches Road, 8, 32 or more input interface, use the BNC connector or composite video interface. However, please note the type of equipment to switch the connection in detail the requirements of the cable. KVM as well-known manufacturers in the product descriptions alone, without the use of Raritan certified cable, the signal quality may lead to lower user satisfaction can not produce the video. Raritan-certified cable can easily be purchased at competitive prices. Using Raritan-certified cable, users can be a resolution of 1024x768 @ 75Hz to send video up to 300 meters away, or to a resolution of 1600x1200 @ 75Hz to send video up to 200 meters away.
Switch output interface means, the output interface mode, generally plugs or BNC composite video interface.
Bandwidth is known as bandwidth, refers to a fixed period of time the volume of information can be transmitted, which is in the transmission pipeline can transmit data. In the digital devices, bandwidth is usually expressed in bps, that is, the median can be transmitted per second. Simulated devices, the bandwidth is usually cycles per second or Hertz sent to show that Hz. Bandwidth of the basic input output system (BIOS) device is particularly important, such as fast disk drive will be affected by low-bandwidth bus obstructed.
Support the resolution refers to the main KVM switch in the control of the machine to which the output signal can be displayed when the resolution is the video window width and height on the number of pixels.
KVM switch means switch is in the conversion from one device to control another device used in switching mode. Products in general through the button, hot-key (hotkey) and the screen to operate the menu.
Wednesday, June 24, 2009
Tuesday, June 23, 2009
What are the KVM Extender's applications?
1.Data centers can be connected to server of the KVM interface, administrators and users through the use of this product to manage and use the server.
2.Enterprise security management application for the development of current technology through the computer's USB host port, floppy disk, serial port, such as to copy the information, resulting in the business of leaking a secret, you can use this product to solve this problem, companies have been able to host computer a safe place on the passage of the products to employees and a KVM switch the interface to use the main computer, you can put an end to such security risks.
3.Video education through the use of this product may be on the remote video education.
4.Current home computer more and more frequency, the computer host radiation, heat and noise getting higher and higher, through the use of this product to other places on the mainframe computer, desktop use of liquid crystal display, the host of the radiation can be avoided , heat and noise.
5.Industrial Control using this product, you can take on the host computer to monitor the location, keyboard and mouse display the location on the clean and comfortable to users.
6.Other applications in the banking, telecommunications, business hall of the securities industry, hotel rooms, through the use of this product to provide users with convenient.
7.Monitoring in industrial monitoring applications, you can use computers to control video camera, focused on the use of master-slave distributed network form a monitoring network program, the program of monitoring and management science, and ease of use, ease of installation and commissioning works, at the same time can reduce the project costs, especially the application of this product can improve the long haul after the camera image quality, at the same time through the cascade to the unit after leading a monitoring point for leadership and management.
8.Application of the program room in the engine room management, administrators and users of the products can be applied to the management and use of servers, due to good image quality of the products, the use of simple and convenient to bring a lot of room to facilitate management.
2.Enterprise security management application for the development of current technology through the computer's USB host port, floppy disk, serial port, such as to copy the information, resulting in the business of leaking a secret, you can use this product to solve this problem, companies have been able to host computer a safe place on the passage of the products to employees and a KVM switch the interface to use the main computer, you can put an end to such security risks.
3.Video education through the use of this product may be on the remote video education.
4.Current home computer more and more frequency, the computer host radiation, heat and noise getting higher and higher, through the use of this product to other places on the mainframe computer, desktop use of liquid crystal display, the host of the radiation can be avoided , heat and noise.
5.Industrial Control using this product, you can take on the host computer to monitor the location, keyboard and mouse display the location on the clean and comfortable to users.
6.Other applications in the banking, telecommunications, business hall of the securities industry, hotel rooms, through the use of this product to provide users with convenient.
7.Monitoring in industrial monitoring applications, you can use computers to control video camera, focused on the use of master-slave distributed network form a monitoring network program, the program of monitoring and management science, and ease of use, ease of installation and commissioning works, at the same time can reduce the project costs, especially the application of this product can improve the long haul after the camera image quality, at the same time through the cascade to the unit after leading a monitoring point for leadership and management.
8.Application of the program room in the engine room management, administrators and users of the products can be applied to the management and use of servers, due to good image quality of the products, the use of simple and convenient to bring a lot of room to facilitate management.
What are KVM's shortcomings ?
KVM's work from the principle, characteristics and scope of application, such as can be seen, in fact, the use of KVM exist some shortcomings:
1.It is not suitable for small Cost-saving room : Taking into account the cost of one or two servers if it is a small room ,it does not need to use KVM, because it is no need to cost additional expenditures; even need a remote to operate, can also remotely through an ordinary landing software;
2. At the same time, centralized management of increased risk management: the current cabinet, the general set of KVM management of the Department of more than 10 machines, assuming a situation of failure in the KVM did not spare the time just to catch up with the back-up or a single set of KVM K, V, M for the replacement operation, at this time in this cabinet has important applications in the server process fails, then the results of the only way - from the failure to start the procedure to replace before the KVM, the server application have been in fault state and found no one. This situation is particularly likely to occur in clusters KVM management, which is not trivial (not to mention the coincidence is not so, I have encountered in their own two, failure to run a server program half an hour and another is another a counter to other servers automatically jump out of more than 20 minutes, until customers over the phone only to discover, at that time for a really depressed);
3. To be designed to improve a number of elements: long-term use of KVM is estimated that there are such friends of the trouble - with a few days suddenly could not recognize KVM or KVM suspended animation, need to re-plug connector; window switching can generally have more than five seconds slowly into the server display the contents of the desktop, for friends do not have the patience to run, every time a switch is equivalent to suffering.
1.It is not suitable for small Cost-saving room : Taking into account the cost of one or two servers if it is a small room ,it does not need to use KVM, because it is no need to cost additional expenditures; even need a remote to operate, can also remotely through an ordinary landing software;
2. At the same time, centralized management of increased risk management: the current cabinet, the general set of KVM management of the Department of more than 10 machines, assuming a situation of failure in the KVM did not spare the time just to catch up with the back-up or a single set of KVM K, V, M for the replacement operation, at this time in this cabinet has important applications in the server process fails, then the results of the only way - from the failure to start the procedure to replace before the KVM, the server application have been in fault state and found no one. This situation is particularly likely to occur in clusters KVM management, which is not trivial (not to mention the coincidence is not so, I have encountered in their own two, failure to run a server program half an hour and another is another a counter to other servers automatically jump out of more than 20 minutes, until customers over the phone only to discover, at that time for a really depressed);
3. To be designed to improve a number of elements: long-term use of KVM is estimated that there are such friends of the trouble - with a few days suddenly could not recognize KVM or KVM suspended animation, need to re-plug connector; window switching can generally have more than five seconds slowly into the server display the contents of the desktop, for friends do not have the patience to run, every time a switch is equivalent to suffering.
The problems of KVM switch procurement
KVM governance in the corporate network play an irreplaceable role, it needs a lot of network equipment for this effort to enhance work efficiency, then in the procurement process which in the end should pay attention to the problem?
1. Compatibility problemsCompatibility of all software and hardware procurement, a crucial factor essential. KVM switch on this point is significantly more important. KVM compatibility convenience in two main considerations, first of all, compatible to Windows, Unix, Linux, Novell, including various types of systems; followed also with a variety of keyboard, mouse, display of hardware compatibility between the keyboard , need to take into account the mouse PS / 2 and USB interface compatibility different.
2. Easy-to-use issuesIntroduced by different vendors KVM operation of the system are different. Therefore, first of all it needs to select when choosing a suitable method of switching, for example, some KVMs are through keyboard hot-key to switch, while others through the OSD menu to switch.
It aslo need a test for the comfort, sensitive and keypad flexible of the KVM, other ease of use is also reflected in whether or not to support hot-swapping, as in the management of the process of increase or decrease in some of the equipment is often a matter.
3. Weak signal problemIn the low-end for KVM, using the cable are directly connected to cable, therefore a direct impact on the quality of the signal transmission, especially in long distance transmission where the cable more stringent requirements.
4. Expansion of KVMExpansion of KVM switche is equally important, because with the development of networks, the need for governance of the host equipment more and more, if the device does not support the existing cascade function, then it means that the need to re-purchase, this will give rise to a lot of cost. The switch supports the cascade, only the host needs to increase the number of upgrades to expand to meet the needing of day-to-day.
Subscribe to:
Posts (Atom)