Google announced a new storage offering for GCS, nearline support:
This has some performance tradeoffs:
Note: You should expect 4 MB/s of throughput per TB of data stored as Nearline Storage. This throughput scales linearly with increased storage consumption. For example, storing 3 TB of data would guarantee 12 MB/s of throughput, while storing 100 TB of data would provide users with 400 MB/s of throughput.