根據Google的說法,GFS是"a scalable distributed file system for large distributed data-intensive applications. It provides fault tolerance
while running on inexpensive commodity hardware, and it delivers high aggregate performance to a large number of clients".
就是這個GFS的分散式檔案系統,讓Google服務可以隨時長出空間或是切去毀損的部分,而管理這個GFS的機置就是BigTable。
目前有超過200個叢集在執行GFS,其中許多都包含數千台主機。