Using Raspberry Pi. Just a quick shot of what happens when you don’t have a FTDI. Google helped enable me.
I have few lamps that had switches in hard to get spaces. Since these lamps also had usage patterns that were very algorithmic i.e Should only be on when people are home Turn on when the room is becoming dark (about an hour before the sun is setting) Some turn off at a certain time… Continue reading Toe dip into Home Automation
I upgraded to MacOS Mojave (from High Sierra) and so far had a smooth transition. I had do the ol’ update upgrade everything for a number of things to get them to work (e.g. macports) but the one thing that I use a lot that wouldn’t play nice was the Beatport Pro application. Start crash… Continue reading Beatport Pro working on MacOS Mojave
My hard drives were spinning at 7600 RPM 24/7…Arrgg! Why do I want power control over my spinning rust…spin down to save noise and heat = save energy For my home lab I buy enterprise HDD’s from ebay et al at amazing price points per Gb. Very few have issues but all need some amount… Continue reading SAS disk power mode control
Always use the graceful method unless absolutely necessary. i.e don’t just yank the power cord out. Graceful method with physical access to device with no console: Press and immediately release the Power button. The device begins gracefully shutting down the operating system and then powers itself off Graceful method while logged in via terminal or… Continue reading Powering On/Off Juniper SRX320
Continuing on from Storage Clustering….a living research project TL;DR: Saved US$16000, smoking network I’m redoing my home and lab network with the goal of achieving the ability of faster then 10Gb/s connections to and between the storage cluster and computational node cluster. I was put off by the cost of going 10Gbe (ethernet). What I… Continue reading eBay Score of the Century
dd has being my go to tool for everything-imges-and-iso, especially ever since the usb stick became ubiquitous and norm for installing new a OS. For the past month I’ve been trying out a new way/tool on both linux and MacOS called etcher. It’s light weight and easy to use. Have a look on github https://github.com/resin-io/etcher… Continue reading Etcher does away with dd*