time. and often, very often, they just been canceled for specific sections of the blackout areas. and without that information, it's very hard for them to properly shut down their servers and make sure that everything is prepared for such a blackout. and so it has some companies a little concerned. i don't think it would be considered a major problem. these rolling power outages may have a serious impact on japan's data centers. also called server farms. they're facilities used to house computer systems and hosting web sites and cloud computing services. that's all a big worry. earlier, john lennon, director of mata capital center in london explained the potential scope of the problem. >> they're going to have lots of dependcy for the financial institutions for data center backup. obviously, they'll have worldwide coverage on that. and not only is the power probably something to look at, it's also fiber network as well. so especially with what's