Things to consider when investigating an off site storage vendor:
points_bullet_small.gif (998 bytes)Proper storage conditions
All the information you need to be an expert on proper storage conditions for your media is right readily available if you know where to look.  Ideal storage, temperature, and humidity conditions are listed on the packaging of most types of  media.  Don't be afraid to ask if those parameters can be met by your prospective storage facility...in fact, make sure you do ask.  Many storage facilities, including mini-storage warehouse units, frequently fall short in this category. 
points_bullet_small.gif (998 bytes)Availability
Make sure your data is available to you 24 hours a day, 365 days a year. 
Disasters don't wait until a holiday has passed.  You'd be hard pressed to find a bank that is willing to open its vault on a weekend, much less on a holiday, so that you can restore critical backups to serve your customers when they need you.
points_bullet_small.gif (998 bytes)Security controls
Check for account access security controls which determine the degree to which your sensitive information is protected and regulates the degree to which employees can access your secured media.
points_bullet_small.gif (998 bytes)Reliable, available courier service
Ensure that a reliable courier service is available on a schedule which meets ALL of  your needs. 
Daily, weekly, monthly, and bi-monthly are some common backup rotation scenarios.  Many small businesses have a false sense of security with their in-house program.  Often, the employee responsible for the backups is just like the rest of us…missing a day now and then; consequently that day's backup is often missed also.
points_bullet_small.gif (998 bytes)Central Station Alarm Controls
Ensure that the facility which protects your data and records is protected by a 24 hour fire smoke, water, and intrusion security alarm system. 
points_bullet_small.gif (998 bytes)Fire Suppression System
Ideally, the facility should be protected by a Halon (preferably version 1301) fire suppression system that extinguishes fires without damaging or leaving contaminating residue on computer media.
points_bullet_small.gif (998 bytes)Customized Courier Service
Courier service MUST be available to meet your recurring needs.  The service provider should be able to schedule daily, weekly, monthly, or on-call trips to pick up and/or deliver your most recent back up tapes.
points_bullet_small.gif (998 bytes)Environmental Controls
The temperature and humidity in storage vaults should be carefully maintained between 68 and 72 degrees Fahrenheit and 40 to 55 percent humidity.  The service provider should use an environmental recorder to verify the status of the vault environment.
points_bullet_small.gif (998 bytes)Emergency Service
Disasters seldom happen at convenient times. 
Your  service provider should ensure that your data is available to you 24 hours a day, 365 days a year.  The service provider should guarantee that they will deliver your media within a specified period of time (typically, 2 hours of your call) in a rush or emergency situation.
With DATASAFE...
A fail-safe recovery plan begins with convenience

…provides a high level of security and accountability
…and results in peace of mind.