May 2018
Intermediate to advanced
256 pages
7h 6m
English
Content preview from OpenStack for Architects - Second Edition
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Object storage
Ephemeral backing storage for compute instances is provided by the Nova service. This storage is referred to as ephemeral because its life cycle coterminates with the life cycle of the compute instance. That is, when an instance is terminated, the ephemeral storage associated with the instance is deleted from the compute host on which it resided. The first kind of persistent storage provided in the OpenStack system was object storage, based on the S3 service available in the Amazon Web Service environment.
Object Storage is provided by the Swift service in OpenStack. Just as Nova provides an EC2- compatible compute API, Swift provides an S3-compatible object storage API. Applications which are written to run on the Amazon EC2 ...
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