Wednesday Nov 12, 2014

Compare and Contrast (and mix-n-match) Oracle's SPARC V12N choices

new white paper from Oracle's Elite Engineering Exchange team provides an excellent guide to the different virtualization technologies available on SPARC platforms, including guidance on when to employ each - either alone, or in combination with another technology.  PDoms, LDoms, and different flavors of Solaris Zones are evaluated in terms of

  • Security Isolation
  • Resource Isolation
  • Efficiency
  • Availability
  • Serviceability
  • Flexibility
  • Agility

Although the paper is not specific to database deployments, the key points apply to all workload tiers.  And while the discussion is on SPARC technologies, many points apply to all virtualization technologies.  For example, from our DBaaS perspective, the following quote from the paper couldn't say it better:

"When a traditional  monolithic virtualization approach is taken where machines are mapped one-to-one to virtual machines, there is no overall reduction in the operational complexity of the system, because there are still the same number of entities to be managed ... the aim should be to consolidate workloads, not simply to consolidate machines, because it is workload consolidation that will drive the operational efficiencies of the data center."

 This summary from the paper shows the full scope of the discussion - the paper looks at each of these rows in detail, and finishes with an evaluation of the combinations that make sense (and when they are indicated).  Great reading for anyone looking to consolidate workloads onto SPARC platforms.

Tuesday Jan 21, 2014

The University of Minnesota Delivers Database as a Service

It seems we usually read about large enterprises and governments leading the way in delivering database as service, but it should be no surprise that top educational institutions have a few things to teach us.  In a recent OracleVoice post on,  Database as a Service: A Pioneer Explains How It's Done, the University of Minnesota discusses how they are providing database as a service to consumers across the university, and the benefits that both IT and consumers are seeing.

One interesting aspect of educational institutions versus enterprises is that the former often provide troves of useful information on their public websites.  A visit to will enable some fruitful searches for more details.

Monday Dec 30, 2013

New Year's Resolution: learn more about Oracle Database 12c

 Interested in learning more about Oracle Database 12c's Multitenant option?  Here's a great opportunity to help kick off the new year:

Independent Oracle Users Group (IOUG) Oracle EM Techcast: DBA Best Practices for Performance Tuning in a Pluggable World

Thursday, 9 January 2014, 10 am PT

In Oracle Database 12c, a container database (CDB) can host up to 252 pluggable databases (PDBs).  This presentation look at the performance aspects of this deployment option:

• Best practices for DBAs
• Tuning and configuration tips
• New features

Featured Speaker: Julian Dontcheff(*), Head of Database Management & Exadata Lead for EALA (Europe, Middle East, Africa and Latin America), Accenture
*Oracle Certified Master and an Oracle ACE Director

Sunday Dec 08, 2013

Why DBaaS will be one of 2014's technology headliners

As you settle in to some holiday reading and prepare for 2014, a recent blog and several blogs it connects to will be of interest.  Check out this OracleVoice blog on  "Why Database As A Service (DBaaS) Will Be The Breakaway Technology of 2014".

From the entry's introduction:

"Database as a Service (DBaaS) is arguably the next big thing in IT. Indeed, the market analysis firm 451 Research projects an astounding 86% cumulative annual growth rate, with annual revenues from DBaaS providers rising from $150 million in 2012 to $1.8 billion by 2016."

 The  article explores the benefits of DBaaS and some of the key enabling technologies, such as Oracle Multitenant, which promises to be a game-changer as Oracle Database 12c adoption rises.

Sunday Sep 08, 2013

Database Cloud topics at Oracle OpenWorld 2013

It's that time of year again for Oracle OpenWorld, and our team is again involved in several venues where you can learn anything you need to know about private database clouds for delivering Oracle Database as a Service. These include demo booths, hands-on-labs, and speaking sessions.

These events cover a range of topics but the common theme is delivering DBaaS, so you can find all of them listed in this Focus On Document.  We hope to see you there to answer your questions and hear about your experiences.

Tuesday Jul 02, 2013

Database Consolidation onto Private Clouds - updated for Oracle Database 12c

One of our team's most popular white papers has been expanded and updated to discuss Oracle Database 12c.  Now available on our OTN page, the new version of Database Consolidation onto Private Clouds covers best practices for consolidation with pluggable databases that the new mulitenant architecture provides, and expanded information on the database and schema consolidation options.  These are the consolidation models the paper evaluates:  

server  database  schema
pluggable databases 

Key considerations for consolidating workloads which the paper explores:

  • Choosing a consolidation model
  • How PDBs solve the IT complexity problem
  • Isolation in consolidated environments
  • Cloud pool design
  • Complementary workloads
  • Enterprise Manager 12c for consolidation planning and operations

Many more white papers have been updated or are new for Oracle Database 12c. We'll continue to highlight those which tie directory to your journey to enterprise cloud.

Friday Mar 01, 2013

Oracle RAC in Solaris 11 Zones

In database cloud deployments, companies host multiple databases for use by various internal groups (private clouds) or external clients (public or community clouds). Whenever multiple databases are deployed together on shared infrastructure, the solution must take into account the degree of isolation each database will require with respect to faults, operations, security, and shared resources.

In many database cloud deployments, Oracle Database features and options will provide the required isolation. This allows consolidating multiple Oracle databases natively onto a shared infrastructure, without the need for further isolation. In native consolidations, all databases share a single Oracle Grid Infrastructure. This approach is described in detail in the Oracle white paper "Best Practices for Database Consolidation in Private Clouds" which is posted on our OTN page.

Database clouds hosting databases with security or compliance considerations have higher requirements for isolation. These could include sensitive data with privacy requirements, or data from multiple companies who cannot be aware of each other (i.e., a public cloud). Such deployments may need to apply additional technologies or controls beyond those available in a native consolidation.

Implementing higher degrees of isolation can be accomplished by encapsulating each database environment. Encapsulation can be accomplished with physical or logical isolation techniques. Oracle recently certified 11gR2 RAC in Solaris 11 Zones,  which is an important capability for database clouds, because it enables strong isolation between databases consolidated together on a shared hardware and O/S infrastructure. We've just published a new white paper that describes the options and makes a detailed analysis of how Oracle Solaris 11 Zones efficiently provide encapsulation to Oracle database clouds.  To see how this technology set can be leveraged on SPARC SuperCluster, read about the Oracle Optimized Solution for Enterprise Database Cloud.


Wednesday Jun 27, 2012

Welcome to the Database Cloud CoverAge blog

Welcome to the Database Cloud CoverAge blog, brought to you by Oracle's Database Cloud Architecture Team.

We've spent the past few years developing best practices for database consolidation projects, how to deliver Database as a Service, and for designing and driving corporate cloud initiatives. Many of our experiences and lessons learned are available in a growing collection of collateral that you can find on our OTN page.

We decided to join the blogosphere to distill key concepts into short posts that you, our readers, can digest quickly. Also, this medium allows you to comment on our posts and collateral -- to share experiences, challenge our conclusions, critique our recipes, and help us choose topics to blog about.

Watch for our next posting, which will start a series on your journey into cloud computing.

The Database Cloud Architecture Team at Oracle develops and documents best practices for designing and delivering database consolidation and database-as-a-service projects for on-premises database clouds.


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