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OneFS uses SmartLock software to provide immutable storage for data. Based on a write once, read many (WORM) locking capability, SmartLock ensures tamper-proof archiving of critical datasets for disaster recovery and regulatory compliance purposes. Configured at the directory-level, SmartLock delivers simple to manage secure data containers that remain locked for a configurable duration or indefinitely. Additionally, SmartLock satisfies the regulatory compliance demands of stringent data retention policies, including SEC 17a-4.