What type of Azure storage would best support logging for transaction flow in an Azure order processing system?

Azure Blob Storage is the optimal choice for supporting logging in an Azure order processing system primarily because it is designed to handle large amounts of unstructured data, such as logs and text files. It can efficiently store text, binary data, or serialized objects, making it a versatile solution for logging transaction flows, where the log entries can vary significantly in size and structure.

Blob Storage is highly scalable, allowing it to accommodate growing amounts of log data without significant performance degradation. Additionally, its lifecycle management features enable you to set rules for how long to retain logs, manage costs effectively, and automatically delete or move logs to lower-cost storage options as data ages.

Furthermore, Blob Storage supports high availability and durability, ensuring that your logs are preserved reliably even in the case of hardware failures. It integrates well with other Azure services, making data retrieval and analysis straightforward, which is critical for transaction logging where quick access to logs for troubleshooting and analysis is often required.

Other storage options like Table Storage are more suited for structured data and can lack the flexibility and scale needed for logging. Azure File Storage is primarily designed for file share scenarios and doesn't provide the same level of scalability for unstructured data as Blob Storage. Although Azure Cosmos DB is a powerful database solution, it may introduce