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Applies to SUSE Linux Enterprise Server 15 SP3

Part I File systems and mounting

1 Overview of file systems in Linux

SUSE Linux Enterprise Server ships with different file systems from which to choose, including Btrfs, Ext4, Ext3, Ext2 and XFS. Each file system has its own advantages and disadvantages. For a side-by-side feature comparison of the major file systems in SUSE Linux Enterprise Server, see https://www.suse.com/releasenotes/x86_64/SUSE-SLES/15-SP3/#file-system-comparison (Comparison of supported file systems). This chapter contains an overview of how these file systems work and what advantages they offer.

2 Resizing file systems

Resizing file systems—not to be confused with resizing partitions or volumes—can be used to make space available on physical volumes or to use additional space available on a physical volume.

3 Mounting storage devices

This section gives an overview which device identificators are used during mounting of devices, and provides details about mounting network storages.

4 Multi-tier caching for block device operations

A multi-tier cache is a replicated/distributed cache that consists of at least two tiers: one is represented by slower but cheaper rotational block devices (hard disks), while the other is more expensive but performs faster data operations (for example SSD flash disks).

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