Oracle ASM Disk Groups and Files Quiz

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Questions and Answers

What is the smallest contiguous disk space that ASM allocates?

1 GB

1 MB (correct)

2 MB

500 MB

In ASM, can an Oracle block be split across multiple allocation units?

Only if the block size is less than an allocation unit

It depends on the disk group configuration

Yes, ASM allows splitting blocks across allocation units

No, ASM does not allow splitting blocks across allocation units (correct)

When adding a datafile to a tablespace, where is the datafile located?

In a separate disk group

On a non-ASM disk

In the same disk group as the tablespace (correct)

In a different database

Can a single database utilize storage from multiple disk groups in ASM?

Yes, a single database can use storage from multiple disk groups Signup and view all the answers

What is the purpose of partitioning ASM disks into allocation units?

To improve I/O performance Signup and view all the answers

Which statement about ASM is true?

It divides files into extents and spreads them evenly across disks Signup and view all the answers

How does ASM help DBAs manage a dynamic database environment?

By enabling them to increase database size without shutting down Signup and view all the answers

What is NOT a benefit of using ASM?

Requiring human interaction on a per-file basis Signup and view all the answers

Which statement about ASM is false?

It restripes all data whenever storage capacity changes Signup and view all the answers

How does ASM achieve fault tolerance?

By maintaining redundant copies of data Signup and view all the answers

Which characteristic of ASM is described incorrectly?

Restriping all data when any disk is added or removed Signup and view all the answers

Which of the following actions can be performed using Enterprise Manager or SQL statements?

All of the above Signup and view all the answers

How can the size of a database be described according to the text?

The sum of all its tablespaces Signup and view all the answers

What is the purpose of Automatic Storage Management (ASM) according to the text?

To provide a vertical integration of the file system and the volume manager specifically built for Oracle database files Signup and view all the answers

How can the list of segments in a tablespace be sorted or filtered according to the text?

By clicking the column header or entering values in the Search region Signup and view all the answers

What additional information is displayed for a dictionary-managed tablespace according to the text?

Max Extents and Next Percent Increase Signup and view all the answers

How can a tablespace be created using another as a template according to the text?

This information is not provided in the text Signup and view all the answers

Study Notes

ASM Fundamentals

The smallest contiguous disk space allocated by ASM is an allocation unit.
An Oracle block cannot be split across multiple allocation units in ASM.

ASM Storage Management

When adding a datafile to a tablespace, the datafile is located in a disk group.
A single database can utilize storage from multiple disk groups in ASM.

Allocation Units and Partitioning

Partitioning ASM disks into allocation units allows for efficient allocation and deallocation of storage.

ASM Benefits and Characteristics

ASM helps DBAs manage a dynamic database environment by providing a single interface for storage management.
ASM achieves fault tolerance through redundancy and mirroring.
A benefit of using ASM is not the ability to manage storage for non-Oracle databases.
ASM does not allow for storage from a single disk group to be utilized by multiple databases.

Database Management with ASM

ASM provides a single interface for managing storage for multiple databases.
The size of a database can be described as the total size of its tablespaces.
The purpose of Automatic Storage Management (ASM) is to simplify storage management for Oracle databases.

Tablespace Management with ASM

The list of segments in a tablespace can be sorted or filtered by using Enterprise Manager or SQL statements.
Additional information displayed for a dictionary-managed tablespace includes the tablespace size and free space.
A tablespace can be created using another as a template by using Enterprise Manager or SQL statements.

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Description

Test your knowledge on Oracle ASM disk groups, ASM disks, and ASM files. Learn about the structure of disk groups, the allocation units in ASM disks, and how ASM files are spread across disk groups.