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Bryant G. Duffy-LyandZach Brown
1d55a4c099
We want to add the first version of worm support. The implementation would prevent users from modifying, touching, or removing of files with the worm attribute set. Note in this version; we also prevent the root user from modifying the expiration time once one is set. The user would need to wait until expiration prior to being able to modify the attribute or file. This was done by design/request. Signed-off-by: Bryant G. Duffy-Ly <bduffyly@versity.com>
Introduction
scoutfs is a clustered in-kernel Linux filesystem designed to support large archival systems. It features additional interfaces and metadata so that archive agents can perform their maintenance workflows without walking all the files in the namespace. Its cluster support lets deployments add nodes to satisfy archival tier bandwidth targets.
The design goal is to reach file populations in the trillions, with the archival bandwidth to match, while remaining operational and responsive.
Highlights of the design and implementation include:
- Fully consistent POSIX semantics between nodes
- Atomic transactions to maintain consistent persistent structures
- Integrated archival metadata replaces syncing to external databases
- Dynamic seperation of resources lets nodes write in parallel
- 64bit throughout; no limits on file or directory sizes or counts
- Open GPLv2 implementation
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