Data storage device


In part one of the COSS series, we discussed the nature of content within the cloud.  After determining the nature of the content being stored, it is important to understand how this unstructured and structured content will be stored.  The mechanism for storage has significant impact on a provider’s Service Level Agreement (SLA) to the end user and can also promote the concept of tiered storage within the cloud as well.  To evaluate this storage mechanism, you need to pull apart the storage path to determine what influences it has on the content being stored.  Technologies such as encryption, de-duplication, compression, object-model storage (a la XAM), and even the underlying file system can have a large part in storage and the subsequent retrieval.

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n Parts 1-4 of the Future Storage Systems articles, we focused on the SAN-facing technologies that would enable scalable propcessing growth, purpose-built technologies for deduplication and encryption, as well as the fabric that would tie nodes together.  However, in each of these articles, I never got into WHERE  that information would eventually be stored.  Today, I’m hoping to remedy that problem.  I’ll be referencing the diagram below as usual.

FSS Backend Disk Layout Options

FSS Backend Disk Layout Options

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