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"File System Design for an NFS File Server Appliance" icon

File System Design for an NFS File Server Appliance

This paper describes WAFLTM (Write Anywhere File Layout), which is a file system designed specifically to work in an NFS appliance. The primary focus is on the algorithms and data structures that WAFL uses to implement Snapshots , which are read-only clones of the active file system. WAFL uses a copy-on-write technique to minimize the disk space that Snapshots consume. This paper also describes how WAFL uses Snapshots...

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