Introduction Pangu1.0 构建在HDD上,ms-level latency distributed kernel-space file system based on Ext4 kernel-space TCP guadually added support to multiple file types(TempFile, LogFile, RandomAccessFile) 这里早期云上存储的主要目的是large volumes,在性能上的关注点不大 随着硬件发展,SSD/RDMA,2015年开…