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http://www.datacenterknowledge.com/ 27 Apr 2012 : Industry Perspectives Top-notch IT organizations are moving apps to the cloud, because they are realizing that it's easier to consume quality infrastructure from vendors than to build out increasingly large numbers of assets into their own data centers, writes Josh Crow, of Internap. Read More

Data Center Knowledge » News and analysis about data centers, cloud computing, managed hosting and disaster recovery

Blog » Petabytes on a budget: How to build cheap cloud storage

http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-how-to-build-cheap-cloud-storage/ At Backblaze, we provide unlimited storage to our customers for only $5 per month, so we had to figure out how to store hundreds of petabytes of customer data in a reliable, scalable way—and keep our costs low. After looking at several overpriced commercial solutions, we decided to build our own custom Backblaze Storage Pods: 67 terabyte 4U servers for $7,867. What we actually provide for our customers is online backup for home and business online backup for work. However, in this post, we’ll share how to make one of these storage pods, and you’re welcome to use this design.

Cloud Magazine

Cloud ou pas cloud ? A cette question shakespearienne version 2012, pas facile de répondre. Dix ans après son apparition, le cloud computing ne cesse de faire parler de lui. http://www.cloudmagazine.fr/dotclear/index.php

L'admin sous GNU / Linux - Blog Libre

Écrit le 9 août 2011 | 4 commentaires Hugin est un logiciel libre permettant de réaliser des panoramas à partir de plusieurs photos, mais pas que ça. Il est multi-langue, Anglais, Français, Russe… Et multi-plateforme également, Windows, Mac,... http://blog.admin-linux.org/
http://blog.easyteam.fr/2011/10/28/quelle-methode-de-migration-adopter-en-11gr2/

Quelle méthode de migration adopter en 11gR2 ? « EASYTEAM LE BLOG

La version Oracle 11.2.0.2 est un patchset complet qui ne nécessite pas l’installation au préalable de la version antérieure 11.2.0.1. De plus pour une installation Standard Edition les composants sont prédéfinis sans aucune possibilité de sélectionner certains composants qui demeure une option réservée uniquement à la distribution Entreprise Edition. Avant d’envisager l’installation et la migration des bases de données en 11gR2 il est impératif au préalable que l’éditeur du logiciel qui accède à la base de données Oracle donne son aval en garantissant et en certifiant la compatibilité de la version 11gR2 avec son logiciel. Le support d’une distribution Oracle se compose de trois types de support :
http://www.dba-oracle.com/t_sql_server_vs_oracle_terminology.htm

SQL Server vs Oracle terminology

Question: I am an Oracle DBA who is charged with implementing a SQL Server database. What are the differences in terminology between MS-SQL and Oracle? I also understand that SQL Server is far less flexible and robust than Oracle and I hope to know those features that I will not have in SQL Server?
After seeing this press release , I couldn't help but think back on the last year and a half that I've been working on Exadata, and all of the interesting projects and implementations we've worked on. When you think about the number of Exadata systems that are out there (Oracle claims over 1,000), and we at Enkitec have sold - 29 - it's pretty impressive (75% of all Exadata systems in North America not sold by Oracle were sold by Enkitec), at least to me. Not to mention a number of custom applications based around code that was developed in house. There have been OLTP, data warehouse, and mixed load environments. We've moved 9.2 databases into Exadata using export/import, 11.2 databases using RMAN, and more than a few live migrations/upgrades using golden gate. http://blog.oracle-ninja.com/2011/10/looking-back-on-60-exadata-implementation/

Looking Back on 60+ Exadata Implementations « Oracle-Ninja.com

How to Plan a SQL Server Virtualization Project (Video) | Brent Ozar PLF | Brent Ozar PLF

http://www.brentozar.com/archive/2011/09/how-plan-sql-server-virtualization-project/ When you need to reduce the number of database servers, the worst thing to do is just pile ‘em all onto one and hope it goes well. A successful virtualization or consolidation project involves a simple set of steps. Inventory the existing SQL Servers and databases. In a perfect world, we’d already have an up-to-date inventory of every database on every server including its OS version, SQL version, security needs, HA/DR plans, performance requirements, and more. However, even good inventories are often missing a few key pieces required for a consolidation project – for example, compatibility lists for any third party vendor software installed on the server.

Oracle Database 11.2.0.3 new features « Julian Dontcheff's Database Blog

http://juliandontcheff.wordpress.com/2011/09/24/oracle-database-11-2-0-3-new-features/ For now, 11.2.0.3 is available only for Linux x86 and Linux x86-64 and we have to download about 5G of data (7 files altogether). 11.2.0.3 is a full installation of the Oracle Database software meaning that you do not need to install 11.2.0.1 before installing 11.2.0.3. According to the ReadMe for 10404530 , the list of bugs fixed for Oracle Database 11g Release 2 (11.2.0.3) is in document 1348303.1: List of Bug Fixes by Problem Type available on the My Oracle Support Web site.
Oracle Corp . has launched a Database Appliance , a Linux-based server that targets midmarket partners and Microsoft SQL Server customers. The Oracle Database Appliance runs on Intel x86 hardware, but partners should not confuse the appliance with commodity servers that Oracle CEO Larry Ellison loathes. Indeed, Oracle Channel Chief Judson Althoff says the appliance is a highly engineered system that will help to drive Oracle’s server hardware revenues higher. Althoff and Lydia Smyers , VP of worldwide alliances and channels, position the appliance as a reliable, affordable, engineered system from Oracle’s enterprise family. Althoff said the appliance is ideal for partners serving customers outside of Oracle’s core 2,000 enterprise customer list. The appliance has four processors, each with six cores. http://www.thevarguy.com/2011/09/22/oracle-database-appliance-linux-system-vs-sql-server/

Oracle Database Appliance: Linux System vs. SQL Server | The VAR Guy

It used to be that open source software was the niche of uber - geeks and programmers who weren't afraid to get dirty in the code. And no wonder; it was a free-for-all whose only support was the project sites' bug reporting pages and community groups. A lot has changed since then. Just as Eclipse has revolutionized Java development, open source databases like MySQL and PostgreSQL have become a real threat to the big database makers' bottom line in the small to medium sized company market.

Database Buying Guide: Open Source Databases — DatabaseJournal.com

Conception d'un entrepôt de données

Par Yazid Grim (Business Intelligen(ce)) Nous avons vu dans mes articles précédents ce qu'était le BI, ce que comprenait un environnement décisionnel et qu'il avait comme concept central l'entrepôt de données ou le Data Warehouse. Intéressons nous maintenant à comment concevoir un entrepôt de données. Quelle structure permet-elle d'avoir les fonctionnalités requises pour un entrepôt de données ? Quelles sont les techniques utilisées pour bien concevoir ?

Oracle virtualization 101: Installing Oracle VM Server and Manager

Oracle may not be the biggest virtualization player, but its enterprise virtualization product, Oracle VM , is simple to install if you have all the right components. When you register, my team of editors will also send you the latest expert resources covering all areas of server virtualization, such as platforms, architectures and strategies, server hardware, managing virtual environments, application issues and more. Setting up Oracle virtualization with Oracle VM is fairly straightforward, and you can quickly build a test environment to try out the platform. Oracle VM is especially well-suited for organizations that already run Oracle databases, because the platform uses an Oracle database and Oracle administrators would be more suited to manage it.
Oracle Database 11g Direct NFS + Real Application Clusters + VMware vSphere + Fully Automated Storage Tiering? Yes! Of Course!

Oracle Database 11g Direct NFS + Real Application Clusters + VMware vSphere + Fully Automated Storage Tiering? Yes! Of Course! « Kevin Closson's Blog: Platforms, Databases and Storage