Summary

Linux, like any OS, is built on its filesystems. The ext2 filesystem has long been the standard for Linux, but over the course of development of the 2.4.x kernels, new journaling filesystems have been added as standard equipment. These filesystems give you several options that vary in subtle ways—disk space consumption by different types of files, support for ACLs, and so on. Most systems will work well with any Linux filesystem, but if disk performance is critically important to you, you may want to research the options further to pick the best one for your need. You can also optimize filesystems in various ways, ranging from options at filesystem creation time to defragmenting and resizing filesystems. Unfortunately, filesystems don't always work perfectly reliably. Sometimes you may need to fix filesystem corruption, and various tools exist to help you do this. Users may also accidentally delete files, and recovering them can be a challenging task, although being prepared by using trash can utilities and performing regular backups can greatly simplify recovery operations.

Team LiB

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