$3/minute = $180/hour
Nice website. If I needed help I’d try them out.
$3/minute = $180/hour
Nice website. If I needed help I’d try them out.
When you deploy on Amazon Web Services with Elastic Load Balancers, you need to assume that random (untrusted) sources are reading client requests to your server (inbound traffic).
via AWS Elastic Load Balancer sends 2 Million Netflix API Requests to Wrong Customer.
Oops.
Computer cluster – Wikipedia, the free encyclopedia.
A computer cluster is a group of linked computers, working together closely thus in many respects forming a single computer. The components of a cluster are commonly, but not always, connected to each other through fast local area networks. Clusters are usually deployed to improve performance and availability over that of a single computer, while typically being much more cost-effective than single computers of comparable speed or availability.[1]
And now I will put together clusters for high availability and load balancing. This is where VMs come in handy. I think I prefer loosely coupled clusters, clusters where individual nodes are separated on different power grids.
It’s always nice to have a succinct definition handy to stay focused.
This should be useful to someone looking for HardwareVirtualMachine (HVM) compatibility by specific processors. In other words, CPU’s utilizing AMD SVM (Secure Virtual Machine), or Intel(R) Virtualization Technology (currently VT-x).
For production deployment in either virtualized or bare-metal configuration, we recommend 64-bit Intel Xeon or AMD Opteron architecture processors for best performance. Future releases of Openfiler may only support 64-bit processors therefore they are highly recommended for new Openfiler installations.
xm commands
List Domains (Xen Guests)
# xm list
Start a Guest
# xm create [guest-config]
Connect to a guest console ( Back: ESC-] (US-keyboard), Ctrl-5 (German keyboard))
# xm console [guest_name]
Shutdown a guest
# xm shutdown [guest_name]
Destroy (Power off) a guest
# xm destroy [guest_name]
Monitor guests
# xm top
virsh commands
# virsh
virsh # help
virsh start [guest_name]
OpenWrt is described as a Linux distribution for embedded devices.
Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developer, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
via OpenWrt.
Tomato USB is an alternative Linux-based firmware for powering Broadcom-based ethernet routers. It is a modification of the famous Tomato firmware, with additional built-in support for USB port, wireless-N mode support, support for several newer router models, and various enhancements.
By taking this approach, Apple bent all the rules of disruption. To disrupt yourself, for example, Professor Christensen’s research would typically prescribe setting up a separate company that eventually goes on to defeat the parent. It’s incredibly hard to do this successfully; Dayton Dry Goods pulled it off with Target. IBM managed to do it with the transition from mainframes to PCs, by firewalling the businesses in entirely different geographies. Either way, the number of companies that have successfully managed to do it is a very, very short list. And yet Apple’s doing it to itself right now with the utmost of ease. Here’s new CEO Tim Cook, on the iPad disrupting the Mac business: “Yes, I think there is some cannibalization… the iPad team works on making their product the best. Same with the Mac team.” It’s almost unheard of to be able to manage disruption like this.
via Steve Jobs Solved the Innovator’s Dilemma – James Allworth – Harvard Business Review.
Interesting discussion about this over on Slashdot.