Captain Roger MacDonald, IT security programme director at the Joint Information Services Agency, says the NZDF started to look at server virtualisation in 2005, as part of a wider IT simplification and consolidation programme known as Project Genesis.How can you argue with that!
MacDonald says that the NZDF’s complex IT environment, which includes 790 servers in New Zealand and more than 100 servers located overseas, presented “a clear case for convergence and consolidation”.
With a main datacentre located in Wellington and a secondary datacentre in Devonport, the NZDF’s IT infrastructure includes more than 14 network layers, and 10 voice and three video networks, which have been supplied by a wide proliferation of vendors.
MacDonald told IT professionals at Computerworld’s virtualisation briefing last week that preliminary tests on one of the NZDF’s largest networks, running on 390 servers, showed that the average server CPU usage was only 2.85%, with occasional peaks at 35.3%.
“The bottom line was that there was scope for virtualisation,” he says.
Using VMware Virtual Infrastructure 3 and VMware Server as the server virtualisation platform, MacDonald says that when the network is fully virtualised it will free up the equivalent of 25 fully-populated server racks, save 143 kilowatts in power consumption annually and allow over 300 servers to be recovered.
vulnerable software: VMware Workstation 6.0 for Windows, possible some other VMware products as well type of vulnerability: DoS, potential privilege escalation I found a vulnerability in VMware Workstation 6.0 which allows an unprivileged user in the host OS to crash the system and potentially run arbitrary code with kernel privileges. The issue is in the vmstor-60 driver, which is supposed to mount VMware images within the host OS. When sending the IOCTL code FsSetVoleInformation with subcode FsSetFileInformation with a large buffer and underreporting its size to at max 1024 bytes, it will underrun and potentially execute arbitrary code. Security focus
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