Skip to main content

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.

https://www.linkedin.com/pulse/my-top-10-posts-pulse-ronald-bartels/

Labels:

Comments

Post a Comment

Popular posts from this blog

LDWin: Link Discovery for Windows

LDWin supports the following methods of link discovery: CDP - Cisco Discovery Protocol LLDP - Link Layer Discovery Protocol Download LDWin from here.
Post a Comment
Read more

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
Post a Comment
Read more

Latest: updatethreatblock.sh

#!/bin/bash # # usage updatethreatblock.sh <configuration file> # eg: updatethreatblock.sh /etc/ipset-threatblock/ipset-threatblock.conf # function exists() { command -v "$1" >/dev/null 2>&1 ; } if [[ -z "$1" ]]; then   echo "Error: please specify a configuration file, e.g. $0 /etc/ipset-threatblock/ipset-threatblock.conf"   exit 1 fi # shellcheck source=ipset-threatblock.conf if ! source "$1"; then   echo "Error: can't load configuration file $1"   exit 1 fi if ! exists curl && exists egrep && exists grep && exists ipset && exists iptables && exists sed && exists sort && exists wc ; then   echo >&2 "Error: searching PATH fails to find executables among: curl egrep grep ipset iptables sed sort wc"   exit 1 fi DO_OPTIMIZE_CIDR=no if exists iprange && [[ ${OPTIMIZE_CIDR:-yes} != no ]]; then   DO_OPTIMIZE_CIDR=yes fi if [[ ! -d $(dirname &q
Post a Comment
Read more