Out of band management or lights out management involves an alternative path to target devices in your infrastructure, separate from the production/primary network.It is your back door to access, monitor, manage, and recover servers and networking equipment, regardless of network availability or if the device is non-responsive due to OS problems. In daily management of your IT assets, in-band tools such as VNC, RDP, telnet or other remote management software works great. But these in-band tools rely on the operating system being available and the network being operational and properly configured. Some instances where out of band solutions may be required:
BenefitsBenefits of Out of Band Management/Lights Out ManagementHaving an out of band infrastructure saves time and money. When in band tools are not available, a technician must address the problem locally where the IT assets are located. They must walk, drive, or fly to fix the problem or they rely on untrained, local hands to address the issue. Both solutions are not efficient and time consuming. Downtime means loss of revenue and productivity. The exact amount of loss in loss of revenue and productivity depends on industry, ranging from thousands of dollars to millions per hour. In a lab environment, out of band infrastructure such as console servers can speed up the development cycle of new products and facilitate cooperation among different geographic areas. ComponentsComponents of an Out of Band Solution1. Out of band management interface is a single pane of glass from which you have secure, real-time access and control of all your servers, embedded technologies, network equipment and power devices regardless of location, time of day, hardware platform, operating system or network status.
Considerations when selecting an out of band management interface: a. Is it a software or appliance? b. Is it redundant? c. Is it easy to deploy, use and maintain? d. What type of devices does it support (e.g. Servers, Network devices, Virtual servers, Blades)? e. How secure is it? Can it be tied to my company’s security policy? f. Does it allow for other vendor support? 2. Console Servers provide out of band access to servers, network equipment and any device with a serial port. They are advanced versions of multi-port serial cards and terminal servers. They can be extremely powerful and effective in troubleshooting. Considerations when selecting a console server: a. What are the port densities available? b. Optional dual NIC? c. Optional dual Power? d. Optional internal modem or PCMCIA support? e. Does it allow for local and/or remote port buffering? f. Does it allow for multi user read and write access? g. How secure is it? h. Does it have optional centralized management? i. Can I easily integrate remote power control? j. Do I need custom adapters/cables for it? k. Can I write scripts for it? l. Does it provide for automation of certain issues? 3. KVM Switches (Keyboard, Video, Mouse) are hardware devices that allow for users to control multiple devices. Digital/Over IP KVM switches also gives you remote and out of band capability. Considerations when selecting a KVM Switch: a. Number of ports/servers supported? b. Number of concurrent remote users? c. Optional dual NIC? d. Optional dual power? e. Is the local user unblocked? f. How secure is it? g. Does it have optional centralized management? h. Can I easily integrate remote power control? i. Does it have automatic mouse sync? j. Does it provide virtual media support? k. Does it have a console port? l. Is the video encrypted? m. What is the video resolution? n. Does it allow for Windows automatic log out? 4. Remote power management strips are often an integral component of out of band management. In certain instances, the only way to bring back an unresponsive device is to cycle its power.
Considerations for a power strip within the out of band framework. a. All the considerations for the power strip section are valid b. Does the power strip provide for integrated power management with a console server and/or KVM over IP switch? The power functionality is available within the console and KVM sessions. c. Can it be integrated with the chosen out of band management interface? Customer Success StoryEntertainment Company Wants Best Out of Band Solution for themChallenge:
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