Oracle RAC Training Online

Oracle RAC Online Course - Students will learn with real time examples, online practices to earn Oracle RAC certification online” from the list of professional Instructors in USA. Below listed trainers provides learners training material, course curriculum, self-study videos, free demo, exam prep questions, e-books & more. All the Oracle RAC online tutorial classes have exclusive lectures and comprehensive sessions on lessons to turn you as expert.

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FAQ's On Oracle RAC Course

In an RAC environment where are the Clusterware files stored?
The Clusterware is installed on each node (on an Oracle Home) and on the shared disks (the voting disks and the CSR file)
What kind of storage we can use for the RAC database storage?
OCFS, ASM, Raw devices and Third party cluster file system such as GPFS or Veritas
Is the SSH, RSH needed for normal RAC operations?
No
What is the Cluster Verification Utility (cluvfy)?
The Cluster Verification Utility (CVU) is a validation tool. It is used to verify all the major components at different stages of deployment in an RAC environment.
List the Oracle Cluster Components?
- Cluster Interconnect (HAIP)
- Shared Storage (OCR/Voting Disk)
- Clusterware software
What is Clusterware and what are its capabilities?
Clusterware is software that provides various interfaces and services for a cluster. It capabilities include:
- Allow the cluster to be managed as a whole
- Protect the integrity of the cluster
- Maintain a registry of resources across the cluster
- Deal with changes to the cluster
- Provide a common view of resources
What is GNS?
GNS stands for Grid Naming service which is an alternative service to DNS. It acts as a sub domain in DNS but is managed by Oracle. With GNS the connection is routed to the cluster IP and manages internally.
What is cache fusion?
In a RAC environment, it is the combining of data blocks to complete the requirements for a transaction (DML, Query of Data Dictionary). The data blocks are shipped across the interconnect from remote database caches to the local node.
What is split brain?
When database nodes in a cluster are unable to communicate with each other, they may continue to process and modify the data blocks independently. If the same block is modified by more than one instance, synchronization/locking of the data blocks does not take place and blocks may be overwritten by others in the cluster. This state is called split brain.
What is the interconnect used for?
It is used to ship data blocks from one instance to another for cache fusion.
What methods are available to keep the time synchronized on all nodes in the cluster?
Configuring Network Time Protocol (NTP) or using Cluster Time Synchronization Service (CTSS)
What files components in RAC must reside on shared storage?
Spfiles, ControlFiles, Datafiles and Redolog files should be created on shared storage.
What would be the possible performance impact in a cluster if a less powerful node (e.g. slower CPUâ€™s) is added to the cluster?
All processing will show down to the CPU speed of the slowest server.
What files can be stored in the ASM diskgroup?
Datafiles, Redo logfiles and Spfiles
What are some of the RAC specific parameters?
- CLUSTER_DATABASE
- CLUSTER_DATABASE_INSTANCE
- INSTANCE_TYPE (RDBMS or ASM)
- ACTIVE_INSTANCE_COUNT
- UNDO_MANAGEMENT
What components of the Grid should be backed up?
OLR, OCR and ASM Metadata

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Oracle RAC Training Online

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Looking for Oracle RAC Online Training & Certification

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FAQ's On Oracle RAC Course

In an RAC environment where are the Clusterware files stored?

What kind of storage we can use for the RAC database storage?

Is the SSH, RSH needed for normal RAC operations?

What is the Cluster Verification Utility (cluvfy)?

List the Oracle Cluster Components?

What is Clusterware and what are its capabilities?

What is GNS?

What is cache fusion?

What is split brain?

What is the interconnect used for?

What methods are available to keep the time synchronized on all nodes in the cluster?

What files components in RAC must reside on shared storage?

What would be the possible performance impact in a cluster if a less powerful node (e.g. slower CPUâ€™s) is added to the cluster?

What files can be stored in the ASM diskgroup?

What are some of the RAC specific parameters?

What components of the Grid should be backed up?

Contact training provider

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