“People move to the cloud for perceived cost savings and what we’re finding is it gets really expensive compared to colocation, [particularly] if you look at the three-year overall total cost of ownership of an application that is pretty constant,”
By Raj Dutt, senior VP of technology at Internap
Read more at http://virtualizationreview.com/Blogs/The-Schwartz-Cloud-Report/2013/02/Does-Cloud-Computing-Reduce-IT-Costs.aspx#
Trying to run ‘at’ with www-data user.
$ at You do not have permission to use at.
Removed it and voilá!
root@digitalwhores:/home/webroot/domain.com# su www-data $ at Garbled time
I’m gonna let here some paragraphs of a nice article from serverdensity.com geeks blog, explaining their choices/ideias cloud vs rented vs colocation with their point of view is also the same that I have about getting our own servers instead of use clouds or rented servers –
Before the paragraphs from serverdensity i’m gonna let some maths that i’v made 3 weeks ago… rackspace vs our own servers (dell).
rackspace clouds with 2Gb RAM / 80Gb disk – web and sql vs colocation dell 2Gb RAM / 500Gb disk and rackspace clouds with 8Gb RAM / 320Gb disk – web and sql vs colocation dell 8Gb RAM / 500Gb disk
Compared to existing cloud servers, Rackspace said its new servers offer 4x more total RAM, 2x more total CPU performance, and 132x more total disk I/O, and are specifically designed to work with Cloud Block Storage.
Powered by OpenStack, performance Cloud Servers are designed with RAID 10-protected solid state disks, Intel Xeon E5 processors, up to 120 GB of RAM and 40 Gigabits per second of network throughput, according to the announcement.
As for pricing, Rackspace has dropped the price about 33 percent, in addition to the upgrading its cloud architecture.
(…)
4X more total RAM
2X more total CPU performance
132X more total disk I/O (input/output)
8.3X more total network bandwidth
2.6X more total overall performance
As seen on: http://www.datacenterknowledge.com/archives/2013/11/05/rackspaces-new-powerhouse-cloud-rolls-out/
ZeroVM is efficient because it is made to virtualize applications, not machines. The runtime virtualizes only the server parts that do the actual work at hand – making it much faster. Today, the fastest virtual servers take at least two minutes to create, while ZeroVM takes less than 5 milliseconds – or 1/20,000th as long. ZeroVM is fast enough that you can put every request into its own mini-VM to spread horizontally.
Making things smaller, lighter and faster also provides greater security. ZeroVM is fast enough to isolate each individual user in a separate container, which delivers greater granularity of security and control.
Source: http://www.rackspace.com/blog/zerovm-smaller-lighter-faster/
Rackspace announced on Monday that it has acquired ZeroVM, a lightweight open-srouce hypervisor created by LifeStack
Source: http://www.thewhir.com/web-hosting-news/rackspace-acquires-open-source-hypervisor-zerovm
HHVM is a new open-source virtual machine designed for executing programs written in PHP. HHVM uses a just-in-time compilation approach to achieve superior performance while maintaining the flexibility and ease of use that PHP developers are accustomed to (dynamic features like eval(), rapid run-edit-debug cycle, etc).
HHVM is used by Facebook to serve billions of web requests per day. To date, HHVM has realized over a 9x increase in web request throughput and over a 5x reduction in memory consumption for Facebook compared with the Zend PHP 5.2 engine + APC.
Geeks always want to see log files!
On live view on a big screen – better -.
tail -f /path/thefile.log
