How to speed up a slow HDD using SSD and LVM cache + RAID1

The article discusses the use of LVM (Logical Volume Manager) to cache HDDs with SSDs, highlighting how this process can significantly improve data storage performance. The goal is to create a fast and cheap storage system that could be especially beneficial for IT enthusiasts or small businesses. It starts with an overview of the fundamentals of LVM, which allows for flexible storage management. Next, the author presents how using SSDs as a cache for slower HDDs can dramatically increase data access speeds, which is crucial in many scenarios, such as file servers or databases. The article then provides a detailed step-by-step guide on how to set up LVM in practice, making it useful for users looking to implement better storage solutions in their systems. In conclusion, it summarizes the benefits that come from this approach and offers suggestions for its practical deployment in everyday use.