---
title: What is a ‘Garbage Collection’?
description: "In SSD, lots of scattered data pieces will generate in use. The Garbage Collection (so-called GC) mechanism is to move these pieces into specific physical units and then reuse the original units to store new data. Garbage Collection is necessary…"
url: "https://www.szyunze.com/support/what-is-a-garbage-collection/"
updated: "2023-08-27"
category: Solid State Drive
---

# What is a ‘Garbage Collection’?

In SSD, lots of scattered data pieces will generate in use. The Garbage Collection (so-called GC) mechanism is to move these pieces into specific physical units and then reuse the original units to store new data. Garbage Collection is necessary and results in the overall performance of SSD. DiskMFR optimizes the algorithm for highly efficient GC to ensure SSD works smoothly.