# Cephfs的快照功能

## 前言

Cephfs的快照功能在官网都很少提及，因为即使开发了很多年，但是由于cephfs的复杂性，功能一直没能达到稳定，这里，只是介绍一下这个功能，怎么使用，并且建议不要在生产中使用，因为搞不好是会丢数据的

## 功能介绍

In Jewel ceph fs snapshots are still experimental. Does someone has a clue when this would become stable, or how experimental this is ?
We’re not sure yet. Probably it will follow stable multi-MDS; we’re thinking about redoing some of the core snapshot pieces still. :/
It’s still pretty experimental in Jewel. Shen had been working on this and I think it often works, but tends to fall apart under the failure of other components (eg, restarting an MDS while snapshot work is happening).
-Greg