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Yandex Object Storage
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  1. Concepts
  2. Overview

Object Storage concepts

Written by
Yandex Cloud
Updated at March 19, 2025

Object Storage uses the following concepts:

Concept Description
Bucket Object Storage unit allocated for user data.
Object File with data in any format.
Bucket versioning Feature that allows you to store multiple copies of an object in a bucket.
Object lock Feature that protects an object version against deletion or overwrite.
Partial object updates Feature that enables partial updating and appending of objects data.
Encryption Data encryption algorithm.
Bucket object lifecycles Rules for automatically deleting objects and changing their storage class.
Pre-signed URLs Method for granting anonymous users access to storage operations.
Multipart upload Method for uploading large objects.
Access control list Tool for granting access to objects and buckets.
Access policy Tool for managing permissions to perform actions with objects and buckets.
Uploading data via an HTML form Method for uploading objects to a storage from a browser that allows anonymous users to upload objects to buckets.
Storage class Way to reduce the cost of storing objects by dividing them into frequently accessed objects and long-term storage objects.
Backups Process for backing up data stored in Object Storage.
Labels Key-value pairs for logical bucket tagging.
Quotas and limits Service use restrictions.

See also the Yandex Cloud general resource hierarchy.

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