6: Mount optionsĭesktop KVMs work well within many organizations, but they don't work well when migrated to server racks. Also consider OSD-enabled KVM switches if you have to switch frequently between numerous systems, as OSD will make you more efficient. If you're accustomed to working with GUI assistance, select a model that supports OSD. They provide visual indications of which systems are online or connected, making it easier to configure settings and switch between systems. Onscreen displays (OSD) and menus are kind of like rear-window defrosters - you don't miss them until you don't have them. Too often, organizations end up with more systems than ports if possible, purchase KVM switches with 20% to 25% extra ports.
Unforeseen but reasonable decisions to add a VOIP system, new database platform, HVAC- or alarm-controlling servers, and other devices instantly place you at a deficit. Whenever possible, purchase KVM switches with additional capacity. Shortsighted administrators often purchase eight-port KVM switches when they need to support eight servers. Confirm that models support the connections in place, which may require a quick-and-dirty audit of current equipment prior to ordering, especially when equipment from multiple locations is being combined in a single site for the first time.
In other cases, engineers assume that the model they're buying provides KVM over IP support, when it doesn't.ĭon't order a KVM switch haphazardly. I've seen seasoned engineers purchase new KVMs that support only DVI video connections or only PS/2 peripherals, then discover the servers all have USB- or VGA-only connections. If you don't, you'll have to box everything back up, request an RMA, and send it back. Review a model's specifications to make sure it's compatible with the operating systems it must support. KVMs often work with most operating systems, but occasionally glitches arise. But if proper operation in the real world proves troublesome, keep searching. If feedback is positive, you're good to go.
Whenever you think you've found the perfect KVM, search Internet forums and read Amazon, Newegg, and other reviews to learn what others' experiences have been using the same model. When you're combating a stressful failure or outage, that's no time to have to fumble around with a flaky KVM. Little in IT is as frustrating as not being able to properly view a critical system or connect using a standard keyboard or mouse, especially as the issue seems to arise at the most crucial times (an email server is down, the Internet has failed, hundreds of users are affected, etc.).
#The best kvm switch pdf#
Note: This article is also available as a PDF download. Review this list to avoid common errors many rookies or budget-minded organizations suffer when selecting a unit too quickly or without performing the necessary homework. Whenever you buy a new KVM switch, you want to make sure it meets your requirements. Plagued with a poor performing KVM switch, even mundane tasks - such as cleanly rebooting systems, confirming successful backup operations, downloading and installing OS updates, and completing general troubleshooting routines - become needlessly complicated. IT professionals spending any significant time in server rooms know the importance of good quality keyboard/video/mouse switches.