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Ops Development Stories
Ops Development Stories
Jun 21, 2021 · Fundamentals

Understanding Linux I/O: Types, Schedulers, and Performance Testing with FIO

This article explains the various classifications of Linux I/O—including buffered, direct, synchronous, and asynchronous types—describes the kernel’s block layer and I/O scheduler algorithms, and provides practical guidance for measuring disk performance using the FIO tool with example commands and scripts.

IOLinuxScheduling
0 likes · 11 min read
Understanding Linux I/O: Types, Schedulers, and Performance Testing with FIO
Refining Core Development Skills
Refining Core Development Skills
Apr 12, 2020 · Fundamentals

Understanding RAID Levels, Disk Performance, and How to Inspect RAID Configurations on Linux

This article explains why mechanical hard drives are slower and less reliable than electronic components, introduces RAID 0, RAID 1, and RAID 5 as solutions to improve speed and fault tolerance, discusses RAID card caching, and shows practical Linux commands for examining RAID hardware and configuration.

HardwareLinuxRAID
0 likes · 11 min read
Understanding RAID Levels, Disk Performance, and How to Inspect RAID Configurations on Linux