The research group of the Research Institute of Electrical Communication, Tohoku University and the Miyagi Prefectural Pharmacy Association have jointly conducted rapid post-disaster dispensing activities utilizing a "regionally distributed storage system" that can preserve important information even if equipment is damaged due to a catastrophic disaster. On November 2016, 11, a demonstration experiment was conducted at the Sakura Hall on the Katahira Campus of Tohoku University in a training format.
In the 2011 Great East Japan Earthquake, there was an event in which it became impossible to access information stored in remote areas from the disaster area due to damage to the network system, which cut off the connection to the wide area network system. Even in such a case, ensuring the availability of important data such as Juki information and medical information, which are required immediately after the disaster, has become an issue.
Against this background, the research group has been conducting research and development of disaster-resistant storage system technology that enables continuous provision of information services even in the event of a large-scale disaster since September 2012, and is preparing for its verification. I went to.Disaster-resistant storage system technology consists of two methods: a risk-aware replication method that stores information in a distributed manner and a multi-route restore method that reconstructs distributed information.
The risk-aware replication formula uses multiple storage devices distributed within a limited area such as the city, and combines them so that the risk of simultaneous damage to the replication source device and replication destination device is as low as possible when backing up data. The method can improve the rate at which data remains after a disaster.On the other hand, the multi-route restore method is a method of recovering data by restoring the backup data remaining in the neighboring replication destination device in parallel even if the wide area network such as the Internet is interrupted, and the information service is restarted in a short time. be able to.
The research group has placed storage devices that implement this disaster-resistant storage system technology geographically distributed on the three campuses of Katahira, Aobayama, and Seiryo of Tohoku University in Sendai City. Constructed as "DATEstor)".In this demonstration experiment, we developed a "regionally distributed storage system" that developed the time from the start of system restoration to the start of dispensing activities based on the assumed case of restoring the medical information system of an insurance pharmacy in Ishinomaki City, Miyagi Prefecture. It was verified whether it could be shortened by utilizing.
