Abbreviated as OSD, an Object-Based Storage Device is a
device that implements the
standard in which data is organized and accessed as
objects, where object means an ordered set of bytes (within the OSD) that is
associated with a unique identifier. Objects are
allocated and placed on the media by the OSD logical
unit. With an OSD interface, metadata is associated
directly with each data object and can be carried between layers and
across storage device
files and records are no longer abstractions, but
actual storage objects that are understood, managed and secured at the device
level.
The Object-Based Storage Device (OSD) interface, an extension to the SCSI
protocol that was developed by the Storage Networking Industry Association (SNIA).
Enterprise Storage Forum: Beyond Block and File Object-based storage pushes metadata management to the very bottom of the stack, to the storage device itself. With object-based storage devices, files and records are no longer abstractions, but actual storage objects that are understood, managed and secured at the device level.
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