The recent Calgary fire has caused a major power outage to the downtown area - many business who had servers located downtown are now unable to access their mission critical data. To some, this might cause inconvenience until a few days later when the power is restored; but to others, this could mean data is lost forever since both their main and backup data servers are destroyed.
The best way to protect your data from events like this is to setup a disaster recovery plan for your IT infrastructure. This basically outlines the actions to be taken before, during and after a disaster, with the objective of bringing the business back on track as quickly as possible.
Implementing a full scale disaster recovery plan, however, can be a significant Cap-Ex and Op-Ex investment, which is also why many small to medium sized business often choose to de-prioritize it.
If your data is critical to your business, I would strongly recommend moving to public or private-cloud storage, services that offer not just important protective measures for IT infrastructure, but many other benefits, and for a relatively low cost (1TB of storage can cost less than a mere few dollars per month.)
The next unintended disaster might be around the corner, and then it could be too late.