Finding Lost IT With RFID
CWmike writes "Vendors are increasingly trying to sell users on the idea that they need to stick RFID tags on IT equipment to keep track of it. Users are interested in this technology because they would much rather automate inventory tracking then go server-to-server with a bar code scanner and clipboard. But the new push for RFID tags in data centers also hints at a larger issue: There may be a significant amount of equipment that can't be located. And while out-of-sight, out-of-mind is not always bad, there's a least one nagging problem: 'Ghost server' systems, which may still be drawing power but perform no work and may be difficult to locate. One vendor at the Afcom data center conference suggests IT shops get some 'GPS for your assets.'"
Find stuff that migrated to somebody's apartment?
"Common sense will be the death of us all"
Its a bit like those Japanese soldiers they used to find periodically on Pacific islands, thinking the war was still on. That poor little OS/2 server, not knowing netcraft had long ago declared victory, and that there was nobody left to talk to it.
...then how is knowing that the server you're looking for is (or more likely is not) somewhere within X meters going to help?
There's no failure quite as dissatisfying as a complete and total solution to the wrong problem.
The RFID systems I have seen in the field are poorly implemented. Most were thick, think 9v battery, tags that were either attached via zip ties or velcro. Even if it was securely attached, most were attached to removable face plates, while others were attached to the rear and would actually prevent you from pulling out the server and/or damage the cabling if you did, as it tended to hang down and catch on stuff. (snap off fibers, pull out power cords, etc.) They offered no assurance that that piece of equipment was in the room since they could easily be separated from the tag. Even with this system, you'll still need people to visually verify it anyway.
How often do you actually lose a piece of hardware? This is a solution to a problem that does not exist.
Barcode or your own SN sticker followed up by visual inspections is cheaper, safer, and more reliable compared to the RFID solutions I have seen out there.
Even if inventory and operations live together in perfect harmony, the tags identify PHYSICAL servers. Thanks to the magic of virtualization, you might have several zombie virtual machines along with [maybe] one that is truly needed -- all in the same physical box.
Even if the tags do their job and you think you have positively identified a defunct box to be shut down and removed, what level of confidence do you have that NONE of the virtual machines are still necessary?
"And while out-of-sight, out-of-mind is not always bad, there's a least one nagging problem: 'Ghost server' systems, which may still be drawing power but perform no work and may be difficult to locate."
Performing an audit once or twice a year could solve this problem.
Far easier, log into it and get the mac address, then see what switch port it is connected too. Then just trace cable.