Logical Partition
← Back to DP-420 Terminology Reference
Category: Data Modeling & Partitioning
Summary: Group of items sharing the same partition key value; max 20 GB storage.
Overview
A logical partition is a group of items in a container that share the same partition key value. All items within a logical partition are guaranteed to be co-located on the same physical partition, which enables transactional operations (like transactional batch and stored procedures) to work within a single logical partition. Logical partitions have a maximum storage limit of 20 GB.
More Info & Links
DP-420 Style Practice Questions
Q1. What defines a logical partition in Azure Cosmos DB?
- A. All items sharing the same partition key value
- B. All items created on the same day
- C. All items stored in the same database account
- D. All items with the same id
Q2. What is the maximum storage size of a single logical partition?
- A. 20 GB
- B. 1 TB
- C. No limit
- D. 50 GB
Answer Key
Answers are listed at the very end so you can attempt the questions first.
- Q1 (Logical Partition): A. All items sharing the same partition key value — A logical partition groups all items that share the same partition key value.
- Q2 (Logical Partition): A. 20 GB — Each logical partition has a fixed maximum storage limit of 20 GB.
DP-420: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB — term detail page
