EMC mining machine

Yottachain: blockchain storage has an overwhelming advantage over the existing centralized storage (AWS / alicloud / EMC / Huawei) in the persistent storage market. The data reliability has been improved exponentially. It has excellent anti DDoS and disaster recovery characteristics, and the cost has been reced several times. Taking yottachain as an example, the details are as follows:

(4) when reconstructing the data of a failed node, it will be divided into many nodes to reconstruct at the same time to speed up the reconstruction speed. For example, if a fragment of 10000 files is stored on a failed node, it takes 0.5 seconds on average to rebuild a fragment (mainly for network transmission). 100 nodes are selected to participate in the reconstruction, and each node only needs to rebuild 100 fragments, with an average of 50 seconds to complete the reconstruction. As long as the other 30 nodes of the same file will not fail at the same time within 50 seconds, the file data will not be lost

(5) e to good rendancy and scattered geographical location, there is no need to worry about hard disk damage, operation and maintenance failure of indivial nodes (Tencent cloud lost user data e to operation and maintenance failure in August 2018), lightning weather (in September 2018, Microsoft's azure service in some areas was shut down for more than 20 hours e to lightning), power failure, optical fiber being cut off Data failure is caused by earthquake, fire and other reasons

(6) because the nodes are scattered and rendant, they are not afraid of DDoS attacks