Linux - Open Source White Papers
An Efficient Snapshot Technique for Ext3 File System in Linux 2.6
Overview Snapshot is to create an instant image of a file system. Creating a snapshot image with little processing and space overheads is critical to provide the continuous data service during backup. In Linux, there are two types of snapshot techniques available: volume-based approach like Logical Volume Manager (LVM) and le system-based approach like SnapFS. The volume-based LVM provides efficient space management capability, but requires some space to be exclusively reserved to store snapshot images and results in high snapshot processing overhead. This paper develops a file system-based snapshot for the ext3 le system in Linux kernel 2.6. The main concept of the file system-based snapshot mainly comes from old-version SnapFS. Experimental evaluation shows that the implementation is quite efficient and working correctly.
| Publisher | Pohang University of Science And Technology | File Format | |
|---|---|---|---|
| Date Published | May 2007 | Downloads | 8 |
| Format | White Papers | ||
| Topics | |||
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