The key reason we back up data is to ensure that an organization has copies of essential data in case of a disaster. With that in mind, it's time to look at off-site tape vaulting, which is the secure storage of backup tapes away from your primary IT infrastructure. This brings up two questions: How far off-site should I vault tapes? How often should they be moved there?
Dealing with the last question first, the question of how often to vault tapes is dictated by your recovery point objective. If the minimum amount of data you can realistically stand to lose is 24 hours' worth, then you should vault backup tapes every 24 hours.
The big mistake many small and medium size enterprises fall into here is to not send a tape off-site until it's full because it may seem like a waste of tape capacity or they have pricing concerns. While saving a few pounds on tapes may seem worthwhile, if a tape you've taken days to fill is destroyed in a fire, you'll lose far more than the tape. So, you should buy more tapes and send them off-site as often as your recovery point requires. Another reason we may avoid off-site tape vaulting is because we want to keep tapes on-site so data is accessible in case of erroneous deletion by a user, or there's a file corruption issue and we need to restore from the original tape. But don't let this be a reason to not send tapes off-site. The answer is to make two copies: retaining one copy for a fast file restore (if needed) and sending the other off-site.
As to where and how far off-site you should vault tapes, this will vary according to the likely threat your business faces. Fire could destroy an office building, so moving tapes to another floor would be inadequate protection. Moving tapes to a nearby office may also prove useless if both locations are in a flooding or known earthquake zone. Keeping tapes or thumb drives in a car has its obvious disadvantages. Therefore, having an up-to-date disaster recovery strategy that deals with the issue of data backup and off-site vaulting is critical.
The conditions in which tapes are vaulted is also important. Tapes should be handled according to manufacturer recommendations in terms of temperature and humidity. To ignore this could result in a loss of data or reduced tape life.
One way of dealing with issues arising from the need to store tapes off-site in an optimal fashion is to engage a tape vaulting services company. This type of service provides collection of tapes, storage in temperature and humidity controlled premises, as well as insurance against loss or damage to media. Another option is electronic vaulting, a term that encompasses nearly any method of backing up data over a network to a remote location also known as cloud storage, today. 
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