Digital Russian Rights Management

iTunes store not available at your country? Don’t like the hassle of Bittorrent? Want to buy DiVX/DVD, VCD and iPod movies DRM-free? Don’t worry, try ZML.com, they’re selling downloadable movies starting from $1.99. And if you have a problem giving your Visa card to a russian site, for a little more you can pay by SMS and you don’t even have to give your e-mail to them. The download speed is kind of slow from my home dsl but from my co-located servers it’s a snap. Globalization is not that good for MPAA, I presume.

QoS is broken

About every corporate ISP in this world will try to sell you some kind of QoS Service on top of the ‘wholesale jungle network’: MPLS, Diffserv, etc. You get to pay more for a special ‘premium’ and optimized network where the right bits are delivered faster than the other ones or not delivered at all. Well, this guy says that the all concept of Qos is broken, but from a economic perspective:

This was the outline of a paper I planned to write, but for which I just have too little time to get it finished. My main point is that QoS mechanisms in a network are a bad idea ™ This is generally examined from a technical point of view. The arguments are either generally that we tried it and it didn’t work. There is little research on that evaluates the economical side. The little research that there is, generally argues that QoS mechanisms could work if all parties in a communication chain just work together and the reason they don’t is because of the lack of incentives. I belief there are several reasons why QoS can’t work and why it is a failure of logic.

In many business cases surrounding QoS mechanisms there is an assumption that QoS enabled traffic that has been paid for, has a higher value to the user than data that has not been paid for. This sounds logical from an economical point of view if money is an adequate proxy. However it isn’t. Compare a VoIP call that clashes with a pay per view movie. If the VoIP call is about an important subject (birth of child) than it has priority for the receiver, regardless of the QoS level paid for.

So, if QoS is broken and your network is acting slow, what is the solution? Well, overengineer your network, that it’s the same thing to say: upgrade your pipes. It’s a Layer 1 problem, not Layer2-7.

Interesting read.

Oracle does Virtualization

There’s a new kid on the block in virtualization software, Oracle VM. I don’t know of the current prices (being Oracle, cheap will be not) or the technology behind it, but it seems to me that it will try to compete to VMware ESX or even XEN. From the news:

Oracle today announced Oracle VM, server virtualization software which supports both Oracle and non-Oracle applications. Oracle VM offers scalable, low-cost server virtualization that is up to three times more efficient than existing products from other vendors. Key Oracle products, including Oracle Database, Oracle Fusion Middleware and Oracle Applications, are certified with Oracle VM. Backed by Oracle’s world-class support organization, customers have a single point of support for their entire virtualization environments, including Linux operating system and Oracle products.

Simplified installation — with single install, patching and upgrading for both Oracle VM and Oracle Enterprise Linux.
Faster deployment — through pre-configured Virtual Machine images of Oracle Database and Oracle Enterprise Linux.
Greater efficiencies — three times more efficient than other server virtualization products.
Linux and Windows support — support for Linux and Windows guest operating systems including: Oracle Enterprise Linux 4 and 5; RHEL3, RHEL4 and RHEL5; Windows 2003, Windows Server 2003 and Windows XP (on HV capable hardware).

Update: Actually, it’s a nice GUI on top of Xen Hypervisor and it will be available for download at Oracle’s site starting tomorrow. Oh well.

Inside VMware Fusion

If you have a Mac and you’re into virtualization, you must see this presentation on Google Tech Talks, made by Ben Gertzfield, the lead developer of Intel Mac virtualization at VMware. The title is exactly what you’ll expect, a true inside view of VMware Fusion. Oh, and by the way, Ben rockz.

Note: I’m a *very* happy user of VMware Fusion.

Argento-vivo



Argento-vivo, originally uploaded by Frederico Marques.

Quicksilver traduzido para português. Descobri o livro ontem numa livraria perto de casa. Edição da Tinta da China. Ainda tenho os dois primeiros volumes da edição original do Ciclo Barroco para ler. Shame on me.

The Euro Effect

Amazon announced S3 for Europe. What you win in latency access to Amazon european datacenters you loose at the price. They are 20% higher than the US prices. Check it out (US Dollars):

Storage
$0.18 per GB – Month of storage used

Data Transfer
$0.10 per GB – all data transfer in
$0.18 per GB – first 10 TB/month data transfer out
$0.16 per GB – next 40 TB/month data transfer out
$0.13 per GB – data transfer out/month over 50 TB

Requests
$0.012 per 1,000 PUT or LIST requests
$0.012 per 10,000 GET and all other requests

For some people, the price/performance trade-off may be not that bad at all.