分布式文件系统：HekaFS
HekaFS 是一个分布式文件系统，专门为云服务提供者解决存储问题，提供文件系统级别的访问。
CloudFS is a distributed fileysystem specifically intended to solve problems faced by a cloud provider when offering filesystem access “as a service” to cloud users (a.k.a. tenants). Specifically, with CloudFS…
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Each tenant gets their own private slice of storage across the provider’s servers. |
Each tenant gets their own private set of identifiers for filesystem users and groups, assignable under the tenant’s own control. |
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Each tenant’s communication with the provider’s servers is encrypted using the tenant’s own SSL certificates. |
Each tenant’s data is encrypted even while stored on the provider’s servers, using keys accessible only to the tenant. |
CloudFS is based on GlusterFS, relying on that for basic distributed-filesystem functionality and using the “translator” interface to add its own. The project is sponsored by Red Hat and hosted by Fedora.