In the last half century, data storage has evolved from raw data blocks through structured files. Conventional file systems can only scale so far and even the best clustered file systems have size and performance limits.
With the explosion of non-structured and imagery data, a new need has arisen to represent and store data as uniquely addressed objects, often associated with relevant metadata – data about the data itself. By dispensing with centralized directories and file hierarchies, object storage systems can scale almost without bound and, with appropriate design, run reliably on commodity hardware platforms.
Object storage has been strongly popularized by the public cloud services that have emerged, especially Amazon Web Services and their keystone S3 object storage. While many have embraced the new cloud data storage models, many others want similar functionality on their own premises – for reasons of cost, security or intent to compete with cloud providers.
There are many choices of object storage available today, open source and commercial. Many organizations are specifically curious about choosing open source versus commercial storage products in today’s world of Software Defined Storage. In this paper, open source Ceph —packaged and supported by Red Hat — will be compared with Elastic Cloud Storage (ECS) from Dell EMC.
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