Azure Outage Proves the Hard Way that Availability Zones are a Good Idea

Microsoft Azure started patching a glaring hole in its availability strategy last September, when it started previewing in-region Availability Zones. Its rivals Amazon Web Services and Google Cloud had already been using the multi-zone strategy for some time. Earlier this month – almost exactly one year later – came a confirmation that multi-zone cloud regions were a good idea that couldn’t be stronger. Lightning during a powerful storm caused a voltage swell in the utility feeds powering one of the Azure data centers in San Antonio, Texas, that overwhelmed the facility’s surge suppressors, knocking out its cooling systems. The “load-dependent thermal buffer” baked into the cooling system for such occasions was eventually depleted. Air temperature inside rose, triggering automatic shutdown of hardware.

Read the article over at DataCenter Knowledge here.

Comments

easywall - Web interface for easy use of the IPTables firewall on Linux systems written in Python3.

Firewalls are becoming increasingly important in today’s world. Hackers and automated scripts are constantly trying to invade your system and use it for Bitcoin mining, botnets or other things. To prevent these attacks, you can use a firewall on your system. IPTables is the strongest firewall in Linux because it can filter packets in the kernel before they reach the application. Using IPTables is not very easy for Linux beginners. We have created easywall - the simple IPTables web interface . The focus of the software is on easy installation and use. Access this neat software over on github: easywall

No Scrubs: The Architecture That Made Unmetered Mitigation Possible

When building a DDoS mitigation service it’s incredibly tempting to think that the solution is scrubbing centers or scrubbing servers. I, too, thought that was a good idea in the beginning, but experience has shown that there are serious pitfalls to this approach. Read the post of at Cloudflare's blog: N o Scrubs: The Architecture That Made Unmetered Mitigation Possible

Thinking problem management!

Search This Blog