Most Popular Oracle Cloud Control

How to Enable Oracle 12c Flashback Database

With Flashback Database, you can rewind the database to a previous point in time without media recovery (that is, without restoring backup copies of the datafiles). When the database is running, Flashback Database buffers and writes before-images of data blocks to flashback logs, which are generated by default for all permanent tablespaces and which reside […]

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Tuning for Oracle 12c Cloud Control, Part 1

Tuning, to a degree, is similar to maintenance. In order to be effective, the effort needs to be continuous. Occasionally you’ll encounter the silver bullet, but these occasions are few and far between. Effective tuning requires routine care involving collecting baselines, removing superfluous tasks, monitoring metrics, modifying parameters or objects, and testing the results. In […]

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Tuning for Oracle 12c Cloud Control, Part 2

Events can be viewed in the Incident Manager. Most events that you address are cleared automatically from this page. What remains are events that do not automatically clear or ones that have not received a response from an administrator. Some events do not clear automatically because Cloud Control has no way of verifying whether the […]

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Enabling Oracle 12c Block Change Tracking

When you enable block change tracking in Oracle 11g, Oracle tracks the physical location of all database changes for incremental backups. RMAN automatically uses the change tracking file to determine which blocks need to be read during an incremental backup, and directly accesses those blocks to back them up. When block change tracking is not […]

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Securing Oracle 12c Cloud Control Data Transfer

Oracle designed Cloud Control to integrate into and manage the most security-hardened data centers. Security functionality is built into the product, both at the application and underlying component levels. The Cloud Control application extends built-in features to tighten its own security. These features are available both through the Console and in executables (such as emctl […]

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How to Implement Oracle 12c HugePages (Conditional)

On many UNIX operating systems (including Linux and AIX) and on Windows, it is recommended that you configure HugePages for databases with a large SGA (such as greater than 2GB), and accompanying ASM instances. HugePages is also known as “Large Pages” for AIX and Windows. We will confine the HugePages discussion—and the steps to enable it—to Linux, […]

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Architectural Developments from Oracle Grid Control 10g

The architecture and installation of Oracle Enterprise Manager GC 10g, GC 11g, and CC 12c differ for all components, and particularly for the OMS and Management Repository:  OMS Architecture and Installation Both the architecture and installation of the OMS diverge between GC 10g, GC 11g, and CC 12c.  The 11g and 12c Oracle Management Service […]

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Managing Middleware with Oracle 12c Cloud Control

Java EE applications, service-oriented architecture (SOA), and composite applications are being increasingly employed by organizations to perform various functions. While these applications provide great flexibility, the other side of the coin is that they are harder to manage efficiently. Monitoring numerous WebLogic Server domains and enterprise applications deployed across multiple tiers has become an increasingly […]

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Delegating Privileges in Oracle 12c Cloud Control

Privilege delegation allows OS users on a host target to run as a user with higher privileges via either Sudo or PowerBroker. These privileges are used during the Agent configuration process based on how the Agent installation is specified; however, in order to use privilege delegation after the installation has completed, it is necessary to […]

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How Oracle 12c Cloud Control Components Interact

In order to better understand the CC architectural model, let’s look at how CC components interact. The diagram in Figure 1 shows how data flows between components for both Console communications and Agent uploads of metric data and alerts. FIGURE 1.   Data flow for each type of interaction between Cloud Control components Let’s follow the numbers and […]

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System Monitoring with Oracle 12c Cloud Control

Cloud Control monitors a vast array of performance metrics automatically and compares them with predefined metric thresholds. You can have Cloud Control issue alerts whenever performance metric values exceed a specific threshold value, which serve as the triggers for the sending of alerts. You can specify both critical and warning alerts following the crossing of […]

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Oracle 12c Cloud Control Transaction Diagnostics

Real-time troubleshooting of slow-performing applications is not an easy task using traditional measures, as you need to spend critical time reviewing logs and other indicators of performance issues. OEM Cloud Control 12c offers powerful instrumentation that lets you search transactions based on their message content and time of arrival, thus helping quickly identify and fix […]

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