Data Movement
What is Data Movement?
Data movement is the transfer of data between cloud or on-premise data stores. This might involve ingesting, replicating, or transforming data as it travels through different databases and applications.
What You Need to Know:
Data movement (sometimes referred to as data flow) is the process of transferring data from one location or system to another – such as between storage locations, databases, servers, or network locations. Data movement plays a part in various information management processes such as data integration, synchronization, backup, migration, and data warehousing.
While simply copying data from A to B tends to be simple, data movement gets complicated when you need to manage volume, velocity, and variety: handling large amounts of data (volume), managing the speed at which data is produced and processed (velocity), and coping with diverse types of data (variety). Modern data movement solutions will often incorporate features such as data compression, data validation, scheduling, and error handling to improve efficiency and reliability.
As businesses shift their infrastructure to public cloud providers, data movement is becoming a more central consideration. While on-premise environments were typically monolithic and designed around ingesting data into an enterprise data warehouse, cloud environments are highly dispersed and dynamic.
The cloud's elasticity allows businesses to easily spin up new services and scale resources as needed, creating a fluid data landscape where datasets are frequently updated, transformed, or shifted between services. This fluidity presents its own challenges as organizations must ensure data consistency, integrity, and security across multiple services and platforms.
Data Movement and Cloud Data Security
In the context of security, data movement can become an issue when organizations lose visibility and control over sensitive data. Customer records or privileged business information can be duplicated and moved between services, databases, and environments, often leading to the same record existing in multiple data stores and processed by different applications, sometimes in more than one cloud.
This continuous data movement introduces complexities when it comes to protecting sensitive data – particularly in terms of complying with data residency and sovereignty, maintaining segregation between environments, and tracking potential security incidents. For example, when data is regularly moved between databases, the security team might miss an incident wherein the data is moved into unencrypted or publicly-accessible storage.
Cloud data security tools, such as Dig Security, help you map the movement of sensitive data, and identify flows that should trigger immediate responses from security teams. They can also help you prioritize incidents that pose a more serious risk, primarily those involving sensitive data flowing into unauthorized or unmonitored data stores.
To learn more, read our full article on cloud data flows and security.
5 Types of Data Movement, With Examples
- Data replication: Copying the same datasets and storing them in different locations. This is typically done for backup and recovery scenarios, to ensure data availability, and to minimize latency in data access across geographically distributed systems. For example: an e-commerce company replicates their inventory database across several regional servers to ensure rapid access for users worldwide.
- Data migration: Moving data from one system or storage location to another, often during system upgrades or when moving data from on-premise servers to cloud environments. Migrations can be complex due to the large volumes of data involved and the need to ensure data integrity during the move. For example: a business migrates its customer data from a legacy on-premise system to a cloud database as a service such as Snowflake.
- Data integration: Combining data from different sources into a unified view. Typically this is done when you are trying to get a comprehensive view of business operations from disparate business systems, or in order to cleanse and normalize data from a single source. For example: A healthcare provider integrates patient data from multiple systems (scheduling, medical records, billing) to provide a comprehensive patient profile.
- Data streaming: Real-time data movement, where data is continuously generated and processed as a stream – often for monitoring, real-time analytics, or operational use cases. Data streaming services move event-based data that is generated from sources such as applications and sensors to data storage platforms or applications, where it can be analyzed and acted upon immediately. For example: A ride-sharing service like Uber streams location data from drivers' phones to their servers for real-time matching with passengers.
- Data ingestion: Obtaining and importing data into a database (or distributed storage system), either for immediate use or long-term storage. Ingestion can be batch-based or streaming. The process involves loading data from various sources and may include transformation and cleaning of the data to fit the destination storage schema. For example: A financial services firm ingests stock market data from various exchanges into a data lake for further analysis and machine learning.
The Fragmented Landscape of Data Movement Tools
The best evidence for the central role data movement plays in the modern data stack is the highly diverse and complicated tooling landscape that has emerged to support it. Below you will find a small sample of the vendors operating in this space - each category could literally be expanded to dozens of specialized tools, cloud-native solutions, and open source frameworks.
FAQs
What is data movement?
Data movement refers to the transfer of data between cloud or on-premise data stores. This might involve ingesting, replicating, or transforming data as it travels through different databases, servers, applications, or cloud platforms.
What is an example of data movement?
Data migration or the process of transferring data from one system to another. A good example is when a business migrates its customer data from a legacy on-premise system to a cloud database as a service such as AWS.
What are the types of data movement?
Types of data movement include data replication, data migration, data integration, data streaming, data archiving, and data ingestion. Each type of data movement serves different purposes and requires appropriate security measures.