Collection of useful, relevant or inane places on the the Internets for 20 Oct 10:
- Incoming Cosmic Rays Hit Record High | Wired Science | Wired.com –
The long years of low solar activity also contribute to the high cosmic ray numbers. The sun occasionally lets off enormous bursts of plasma called coronal mass ejections, which can block cosmic rays as they explode out into interplanetary space. But there were fewer of these bursts during the most recent solar minimum, and those that happened were smaller than usual. ìThatís another thing that let down the barriers and let the cosmic rays come in easier,î Mewaldt said.
If you’ve ever had the Cisco TAC blame cosmic radiation on a fault (true, several times in my case) then you should be very worried for the integrity of your network.
- Cisco IOS Hints and Tricks: PFC/ETS and storage traffic: the real story –
However, when I hear several CCIEs I highly respect talk about ìPriority Flow Control can be used to stop all the other traffic when storage needs more bandwidthî, I get worried. Exactly the opposite is true: you use PFC to stop the overzealous storage traffic (primarily FCoE, but also iSCSI) to make sure you donít drop it.
When designing, always think about both sides of the story. For every aspect you ‘protect’, there is something else that ‘suffers’. Yin / Yang and balance of the overall architecture can be lost. Great article.
- Sleep and Creativity –
Dr. Ellenbogen found sleep makes people 33% more likely to make new connections between previously unconnected ideas. Dr Ellenbogen said,ìSleep enhances performance, learning and memory. Most unappreciated of all, sleep improves creative ability to generate aha! moments and to uncover novel connections among seemingly unrelated ideas.î
Not only sleep, but exercise and healthy eating improves your overall life performance.
- Sly new tactic sneaks hackers past security dogs ï The Register – A timely reminder that firewalls are just the first line of defence, and not much use against application attack vectors that can initiate connections from within the security boundary.
- The Myth of Laser Focus – in the ongoing debate around multitasking, more interesting insights