HDFS is a Java-based file system that provides scalable and reliable data storage, and it was designed to span large clusters of commodity servers. HDFS has demonstrated production scalability of up to 200 PB of storage and a single cluster of 4500 servers, supporting close to a billion files and blocks.
Google Cloud Storage offers developers and IT organizations durable and highly available object storage. Google created three simple product options to help you improve the performance of your applications while keeping your costs low. These three product options use the same API, providing you with a simple and consistent method of access.