Wednesday Apr 02, 2014
Tuesday Apr 01, 2014
By Scott Mcneil-Oracle on Apr 01, 2014
Since the launch of Oracle Enterprise Manager 12c Release 3, we have received tons of questions around managing Oracle Multitenant, an Oracle Database 12c Enterprise Edition option, and pluggable databases (PDBs)—more specifically; questions about pluggable database as a service (PDBaaS). In this blog, we provide answers to some of the common questions from people.
What qualifies a database to be pluggable?
Can the pluggable
databases be plugged and unplugged across multiple platforms such as Solaris,
AIX, and Linux?
of database consolidation, what are the differences between using VMs,
dedicated schemas and pluggable databases?
Pluggable database combines the best of all the other models and offers excellent consolidation, isolation, manageability and is suitable for any application that is certified to run on Oracle Database 12c. With the other models, we see certain shortcomings. For example, server virtualization offers good isolation but creates compliance and administrative headaches. Schema based consolidation offers ease of management and patching, but limited isolation.
How do you
track configuration drift with a pluggable database? I certainly understand
drift in the container database, but in what ways would a pluggable database
drift from its standard baseline?
What is a
zone? Is it physical? Regional?
be the DBA and SYSADMIN role in the pluggable DBaaS environment?
What if you
need custom configurations on a pluggable database? Once the database
is deployed via self-service how do you make changes?
If I'm an
application developer and I request a database with a certain pre-defined
service level, what level of permissions should I expect with that database?
Am I getting DBA or SYSDBA privileges with that request?
Are the pluggable
database as a service capabilities for Oracle Database 12c included in
Oracle Enterprise Manager 12c? Do we need a plug-in? Do we need to license
Oracle Enterprise Manager 12c Database Management Packs?
Enterprise Manager 12c Management Packs are required to be able to provide
If you have
shared memory and background processes in the container database, how
do you allocate server resources to a particular pluggable database? Can
you assign specific amount of CPU cycles, RAM and IOPS for a given pluggable
What is the
largest number of pluggable databases you can deploy on Oracle Exadata?
Can I use
pluggable database as a service if the target database is 9i or 10g?
Data Guard be configured for selective pluggable databases from a container
database? I do not want all pluggable databases to have a standby.
support pluggable databases?
For complete details of managing pluggable database as a service, be sure to watch this webcast: Delivering Pluggable Database as a Service
Monday Mar 31, 2014
By Scott Mcneil-Oracle on Mar 31, 2014
Munhowen, a leading Luxembourg beverage distributor, decided to replace its existing IT environment. By selecting Oracle technology, including Oracle Real Application Clusters, Oracle Enterprise Manager, Oracle Linux and Oracle ZFS Storage Appliances, the company was able to enhance system performance and reduce maintenance costs associated with sustaining an optimal hardware environment.
Jean-Pierre Rasquin, CIO, Munhowen, explains: “Implementing Oracle Real Application Clusters, Oracle Enterprise Manager, and Oracle ZFS Storage Appliance helped us to significantly increase our IT environment’s availability, scalability, and manageability—providing superior support, tailored to our business needs, while helping us to reduce maintenance costs.” Read the press release.
Friday Mar 28, 2014
By Scott Mcneil-Oracle on Mar 28, 2014
Great Resource for Learning Oracle Database 12c and Oracle Enterprise Manager 12c
The guide includes coverage of Oracle Diagnostics Pack and Oracle Tuning Pack features such as Automatic Database Diagnostic Monitor (ADDM), Active Session History (ASH) Analytics, SQL Tuning Advisor, Real-time SQL Monitoring and more. Download the PDF or HTML verision.
Thursday Mar 27, 2014
By Scott Mcneil-Oracle on Mar 27, 2014
Wednesday Mar 26, 2014
By Scott Mcneil-Oracle on Mar 26, 2014
As a DBA, getting ahead of the demands of the job are challenging enough, day in and day out. A recent IOUG survey on database management sheds new light on some of the top challenges facing administrators. Here's an infographic breakdown on what you need to know.
the IOUG Survey.
Tuesday Mar 25, 2014
By Scott Mcneil-Oracle on Mar 25, 2014
Thursday Feb 27, 2014
By Courtney Llamas on Feb 27, 2014
If you are using Fast Recovery Area (FRA) for the archive destination and the destination is set to USE_DB_RECOVERY_FILE_DEST, you may notice that the Archive Area % Used metric does not trigger anymore. Instead you will see the Recovery Area % Used metric trigger when it hits a Warning threshold of 85% full, and Critical of 97% full. As this metric is controlled by the server side database thresholds it cannot be modified by Enterprise Manager (see MOS Note 428473.1 for more information). Thresholds of 85/97 are not sufficient for some of the larger, busier databases. This may not give you enough time to kickoff a backup and clear enough logs before the archiver hangs. If you need different thresholds, you can easily accomplish this by creating a Metric Extension (ME) and setting thresholds to your desired values. This blog will walk through an example of creating an ME to monitor archive on FRA destinations, for more information on ME's and how they can be used, refer to the Oracle Enterprise Manager Cloud Control Administrator's Guide.[Read More]
Tuesday Feb 18, 2014
By Courtney Llamas on Feb 18, 2014
One of the most critical events to monitor on an Oracle Database is your archive area. If the archive area fills up, your database will halt until it can continue to archive the redo logs. If your archive destination is set to a file system, then the Archive Area % Used metric is often the best way to go. This metric allows you to monitor a particular file system for the percentage space that has been used. However, there are a couple of things to be aware of for this critical metric.
Cluster Database vs. Database Instance
You will notice in EM 12c, the Archive Area metric exists on both the Cluster Database and the Database Instance targets. The majority of Cluster Databases (RAC) are built against database best practices which indicate that the Archive destination should be shared read/write between all instances. The purpose for this is that in case of recovery, any instance can perform the recovery and has all necessary archive logs to do so. Monitoring this destination for a Cluster Database at the instance level caused duplicate alerts and notifications, as both instances would hit the Warning/Critical threshold for Archive Area % Used within minutes of each other. To eliminate duplicate notifications, the Archive Area % Used metric for Cluster Databases was introduced. This allows the archive destination to be monitored at a database level, much like tablespaces are monitored in a RAC database.
In the Database Instance (RAC Instance) target, you will notice the Archive Area % Used metric collection schedule is set to Disabled.
If you have a RAC database and you do not share archive destinations between instances, you will want to Disable the Cluster Database metric, and enable the Database Instance metric to ensure that each destination is monitored individually.
Friday Feb 14, 2014
By Scott Mcneil-Oracle on Feb 14, 2014
Accelerate Database Testing for Improved Agility and Cost Savings
Discover how SPA Quick Check helps to:
Friday Feb 07, 2014
By Scott Mcneil-Oracle on Feb 07, 2014
Thursday Jan 30, 2014
By Scott Mcneil-Oracle on Jan 30, 2014
The Italian National Institute of Astrophysics (INAF) has selected Oracle to store, analyze and manage scientific data generated from the European Space Agency's Gaia mission. The mission sets out to provide in-depth 3-D mapping of the Milky Way galaxy over the course of the next 5 years. An estimated 1 petabyte of astronomical data (equivalent to 1 million gigabytes) will be collected and stored in Oracle Database with Oracle Enterprise Manager entrusted to manage the system.
The goal of the Gaia mission will give researchers a better understanding into how the Milky Way was formed and how it has evolved over time. According to Roberto Morbidelli, Scientific Operation Manager at INAF, "Our activity within the Gaia mission will provide a huge volume of information, a very precious heritage of astronomical data that will have to be stored for the whole 21st century and beyond. Oracle has demonstrated in other research contexts that it would be the ideal technological partner to manage scientific projects of this kind of size. Thus we are sure that it will be a successful choice for INAF too. Oracle has been selected for its technology’s reliability, scalability, availability and the appropriate technological evolution planned in the next years; also key was the competence showed by Oracle experts in the development of features useful to our research.”
Oracle Enterprise Manager will be deployed to help manage the multiple Oracle Database instances and Oracle Real Application Clusters. Oracle Enterprise Manager will be used to ensure reliable access to Gaia mission data, allowing for numerous third-party applications and systems that control and verify the correct functioning of satellites and astronomical instruments.
“We are proud to offer our technology to the Gaia mission, an international research project that is of both major importance and high ambition,” said Xavier Verhaeghe, Vice President, Technology & Big Data Oracle EMEA. “INAF’s choice is another confirmation of Oracle’s ability to easily manage the extreme challenges involved in processing petabytes of Big Data."
Thursday Nov 28, 2013
By Scott Mcneil-Oracle on Nov 28, 2013
Tuesday, December 3 , 2013
Oracle Enterprise Manager 12c Snap Clone allows administrators to create fully functional copies of databases using the copy-on-write capabilities of the underlying storage layer. Users can request databases from Oracle Enterprise Manager 12c's self-service portal and have them provisioned within minutes instead of hours while keeping storage needs to a minimum. Part of Oracle Enterprise Manager 12c Cloud Management Pack for Oracle Databases, Snap Clone can fundamentally improve the efficiency and agility of administrators and QA engineers while saving storage costs and other capital expenses.
Join us for this webcast to learn how Oracle Enterprise Manager 12c Snap Clone can help:
Wednesday Nov 13, 2013
By Scott Mcneil-Oracle on Nov 13, 2013
Thursday, November 21, 2013
Save Time and Costs, Reduce Complexity
Database as a service (DBaaS) offers a variety of benefits to help companies improve operations and move faster to the cloud. Using Oracle Multitenant—a new option for Oracle Database 12c featuring pluggable databases—and Oracle Enterprise Manager 12c, companies can make the most of those benefits.
Join us for the webcast and learn how Oracle technology can help:
Tuesday Nov 12, 2013
By Hari Srinivasan-Oracle on Nov 12, 2013
One of the most arduous processes in DB maintenance is upgrading Databases across major versions, especially for complex RAC Clusters.
With the release of Database Plug-in (18.104.22.168.0), EM12c Rel 3 (22.214.171.124.0) now supports automated upgrading of RAC Clusters in addition to Standalone Databases.
This automation includes:
- Upgrade of the complete Cluster across the nodes. ( Example: 126.96.36.199 CRS, ASM, RAC DB -> 188.8.131.52 or 184.108.40.206 GI, RAC DB)
- Best practices in tune with your operations, where you can automate upgrade in steps:
Step 1: Upgrade the Clusterware to Grid Infrastructure (Allowing you to wait, test and then move to DBs).
Step 2: Upgrade RAC DBs either separately or in group (Mass upgrade of RAC DB's in the cluster).
- Standard pre-requisite checks like Cluster Verification Utility (CVU) and RAC checks
- Division of Upgrade process into Non-downtime activities (like laying down the new Oracle Homes (OH), running checks) to Downtime Activities (like Upgrading Clusterware to GI, Upgrading RAC) there by lowering the downtime required.
- Ability to configure Back up and Restore options as a part of this upgrade process. You can choose to :
a. Take Backup via this process (either Guaranteed Restore Point (GRP) or RMAN)
b. Set the procedure to pause just before the upgrade step to allow you to take a custom backup
c. Ignore backup completely, if there are external mechanisms already in place.
High Level Steps:
- Select the Procedure "Upgrade Database" from Database Provisioning Home page.
- Choose the Target Type for upgrade and the Destination version
- Pick and choose the Cluster, it picks up the complete topology since the clusterware/GI isn't upgraded already
- Select the Gold Image of the destination version for deploying both the GI and RAC OHs
- Specify new OH patch, credentials, choose the Restore and Backup options, if required provide additional pre and post scripts
- Set the Break points in the procedure execution to isolate Downtime activities
- Submit and track the procedure's execution status.
The animation below captures the steps in the wizard. For step by step process and to understand the support matrix check this documentation link.
Explore the functionality!!
In the next blog, will talk about automating rolling Upgrades of Databases in Physical Standby Data Guard environment using Transient Logical Standby.
Latest information and perspectives on Oracle Enterprise Manager.
- Oracle Private Database Cloud: Defining Database Sizes in the Service Catalog
- Discover and Promote Oracle Homes as EM Targets
- Oracle Database In-Memory Advisor
- Oracle Private Database Cloud REST APIs
- Oracle Enterprise Manager at Collaborate15
- Editing EM12c Jobs in Bulk
- Q&A: The Cloud Journey with Enterprise Manager
- Webcast: Database Provisioning in Minutes: Using Oracle Enterprise Manager 12c DBaaS Snap Clone and EMC Storage
- Test Drive Oracle Enterprise Manager at a City Near You
- Webcast: Accelerate Your Cloud Journey With Enterprise Manager (February 17)