Название: OpenBSD Mastery: Filesystems
Автор: Michael W. Lucas
Издательство: Tilted Windmill Press
Год: 2023
Страниц: 195
Язык: английский
Формат: pdf
Размер: 10.2 MB

"Many users assume that their advanced filesystem is better than UFS because they have so many features-snapshots, checksums, compression, sophisticated caching algorithms, and so on-while all UFS has ever done is muck about putting data on disk. But, conversely, UFS users believe their filesystem is better for exactly the same reasons." - Hitchhikers Guide to OpenBSD

Filesystems are not the most important topic in system administration—but if you configure your persistent data storage badly, doing everything else correctly won’t matter. A well–planned arrangement of disks invisibly simplifies a system administrator’s life. Ill–configured filesystems remain an annoyance until the system is wiped and rebuilt. OpenBSD is no exception. Understanding how your disks work, and how to configure them to suit the system’s workload, will make your life easier.

OpenBSD includes many standard tools for disk management. Its Unix File System has been continuously used for decades and is both robust and well–understood. While it lacks features found in newer filesystems like ZFS and Btrfs, the OpenBSD developers have never been seriously interested in file system features. A file system should put data on disk. That data should be safely stored and reliably read. That’s it. Error checking? Deduplication? No. The operating system has other tools for ensuring data integrity and compactness. OpenBSD Mastery: Filesystems will take you through best practices for managing disks on OpenBSD. You will learn not just which commands to run, but the context for making sound decisions on disk management.

Disk management is the core of system administration. Nobody can tell you how large that database is going to grow or how many files that archive must eventually support, but for everything else there's OpenBSD Mastery: Filesystems. This guide takes you through the latest in OpenBSD storage management, including

- OpenBSD's cross-platform storage stack
- MBR, GPT, and disklabel partitions
- The Unix File System
- Growing, removing, and repairing filesystems
- Memory file systems
- The Buffer Cache
- Why you need swap, and how to live with it
- Coping with FAT, NTFS, EXT, and more
- The Network File System
- iSCSI
- Software RAID
- Encrypted filesystems
- Encrypted installs

And more! Partition yourself for success and grab OpenBSD Mastery: Filesystems now.

Sysadmin Prerequisites:
This book is written for system administrators interested in OpenBSD. I assume that you understand how to use your shell and basic Unix commands. No previous OpenBSD experience is required—in fact, experimenting with filesystems is a great way to get that initial OpenBSD experience.




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