RHEL Linux - Red Hat System Administration Practice Exam

Disable ads (and more) with a membership for a one time $4.99 payment

Study for the RHEL Linux - Red Hat System Administration Exam. Enhance your knowledge with flashcards and multiple-choice questions, complete with hints and explanations. Prepare for your certification!

Practice this question and more.

By default, how much space can the journal occupy on the file system?

10% of the file system
15% of the file system
20% of the file system
5% of the file system

The correct answer is: 10% of the file system

The default size of the journal in a file system such as ext3 or ext4 is indeed set to occupy up to 5% of the total file system space. This size is determined based on the overall size of the file system itself, allowing for a balance between performance and space efficiency. The purpose of the journal is to log changes to the file system to help prevent data corruption during unexpected shutdowns or crashes. In most ext4 configurations, the journal size can also be modified with specific tuning, but starting parameters usually take a conservative approach to ensure there remains ample space for user data. The predefined limits are in place to prevent the journal from taking up too much room, which could lead to inefficiencies or constraints on the data storage capabilities of users. Understanding these parameters is essential for system administrators who need to manage and optimize file system performance and reliability effectively.