Storage Retrieval

Download OpenStack Swift: Using, Administering, and Developing for by Joe Arnold PDF

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By Joe Arnold

Wake up and operating with OpenStack rapid, the unfastened, open resource answer for deploying high-performance item garage clusters at scale. during this sensible advisor, Joe Arnold, co-founder and CEO of SwiftStack, brings you up-to-speed at the easy strategies of item garage and walks you thru what you want to recognize to devise, construct, function, and degree the functionality of your individual fast garage process. item garage is vital this present day with the expansion of net, cellular, and software-as-a-service (SaaS) purposes. This publication is helping you thru the method, with separate sections on software improvement, set up, management, and troubleshooting.

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Extra resources for OpenStack Swift: Using, Administering, and Developing for Swift Object Storage

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A partition maps to multiple drives, each of which will have the object written to it. It should be noted that the partition we are talking about here is not related to the partitioning of hard drives. We’ll discuss these internal mechanisms in greater detail later in this chapter. The key concept here is that users access an object by its storage location. The user does not know, and has no need to know, where in the cluster the object is physically located. Swift Architecture Swift data (the accounts, containers, and objects) are resources that eventually get stored on physical hardware.

The replicator continuously examines its local node and compares the accounts, containers, or objects against the copies on remote nodes in the cluster. If one of the remote nodes has an old or missing resource, then the replicator will push its local copy out to that node to update or replace the data. info | 29 replication update. It should be noted that the replicators are only pushing their local data out to remote nodes; they do not pull remote copies in if their local data is missing or out of date.

Lifecycle management A SwiftStack Controller can be upgraded separately from Swift. A Controller can perform a rolling, no-downtime upgrade of Swift as new versions are released. It can be configured with a warm standby if desired. A Controller can also fold in old and new hardware in the same cluster. Agents identify the available capacity and will gradually rebalance data automatically. User and capacity management Several authentication modules are supported by SwiftStack, including on-cluster accounts.

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