Browse Definitions:
Definition

object storage device (OSD)

Contributor(s): Stan Gibilisco

An object-based storage device or object storage device (OBSD or OSD) is a computer storage system that organizes data into containers called objects that a user or application determines are related. 

The objects reside in a flat address space where they all exist at the same level and cannot be placed inside one another. Each one has a unique object identifier (OID) that allows a server or end user to retrieve it without knowing the physical location of the data it contains.

An OSD allocates space for objects and manages lower-level space and security functions. Users and applications interface with objects through an API (application program interface) or by means of HTTP (hypertext transfer protocol). Public cloud service providers typically implement APIs to give users file or block access to OSD storage on the back end. For private clouds and archives, users either handle the APIs themselves or use an OSD that includes front-end functionality. Another alternative is to implement a cloud gateway that provides the appropriate protocols for user interface to back-end object storage.

Object storage may work better than network-attached storage (NAS) architectures for large unstructured data sets in applications such as medical imaging, movies, entertainment, and cloud storage. Object storage supports growth without significant performance degradation, and OSDs can be scaled geographically. Distributing copies of data across storage nodes can enhance data protection. In addition, OSDs can improve data resiliency with erasure coding.

This was last updated in June 2013

Continue Reading About object storage device (OSD)

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

SearchSecurity

  • botnet

    A botnet is a collection of internet-connected devices, which may include PCs, servers, mobile devices and internet of things ...

  • Web application firewall (WAF)

    A Web application firewall (WAF) is a firewall that monitors, filters or blocks traffic to and from a Web application. WAFs are ...

  • MD5

    The MD5 hashing algorithm is a one-way cryptographic function that accepts a message of any length as input and returns as output...

SearchHealthIT

SearchDisasterRecovery

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...

  • mass notification system (MNS)

    A mass notification system is a platform that sends one-way messages to inform employees and the public of an emergency.

  • disaster recovery as a service (DRaaS)

    One approach to a strong disaster recovery plan is DRaaS, where companies offload data replication and restoration ...

SearchStorage

  • compact disc (CD)

    A compact disc is a portable storage medium that can be used for recording, storing and playing back audio, video and other data ...

  • secondary storage

    Secondary storage is used to protect inactive data written from a primary storage array to a nonvolatile tier of disk, flash or ...

  • VRAM (video ram)

    VRAM (video RAM) is a reference to any type of random access memory (RAM) used to store image data for a computer display.

SearchSolidStateStorage

  • SSD RAID (solid-state drive RAID)

    SSD RAID (solid-state drive RAID) is a methodology commonly used to protect data by distributing redundant data blocks across ...

  • Tier 0

    Tier 0 (tier zero) is a level of data storage that is faster, and perhaps more expensive, than any other level in the storage ...

  • PCIe SSD (PCIe solid-state drive)

    A PCIe SSD (PCIe solid-state drive) is a high-speed expansion card that attaches a computer to its peripherals.

SearchCloudStorage

  • RESTful API

    A RESTful application program interface breaks down a transaction to create a series of small modules, each of which addresses an...

  • cloud storage infrastructure

    Cloud storage infrastructure is the hardware and software framework that supports the computing requirements of a private or ...

  • Zadara VPSA and ZIOS

    Zadara Storage provides block, file or object storage with varying levels of compute and capacity through its ZIOS and VPSA ...

Close