O - Definitions
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O
object storage
Object storage, also called object-based storage, is an approach to addressing and manipulating data storage as discrete units, called objects.
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OpenStack Swift
OpenStack Swift, also known as OpenStack Object Storage, is an open source object storage system that is licensed under the Apache 2.0 license and runs on standard server hardware.
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optical disk
An optical disk is an electronic data storage medium that can be written to and read from using a low-powered laser beam.
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optical storage
Optical storage is any storage type in which data is written and read with a laser.
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orthogonal
Orthogonal concepts have their roots in advanced mathematics. They are also associated with software development, storage and networking.
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overprovisioning (SSD overprovisioning)
Overprovisioning, in a storage context, is the inclusion of extra storage capacity in a solid-state drive.
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oversubscription
Oversubscription in a storage area network (SAN) is the practice of committing more network bandwidth to devices connected to that network than what is physically available.