Linux 7 Storage Concepts

Internal

• Linux Subjects

File System

ext4

An ext4 filesystem is created with mkfs.ext4.

Journal Recovery is done with e2fsck in userspace at boot time.

Differences between ext4 and XFS

Journal verification and repair:

Metadata error behavior:

Quotas:

File system resize:

inode numbers:

Speculative preallocation:

Fragmentation tools:

Subjects

• Linux Logical Volume Management Concepts