If a disaster strikes, you will not want to spend time searching for vendors that can supply you with hardware or software. List the complete names, addresses, and telephone numbers of the employees who will help rebuild your systems in an emergency. In the event of a disaster, you will need to contact these employees immediately. If this documentation is stored onsite and a disaster occurs, your work may be destroyed, and you will have to reconstruct your network from memory. Save time and frustration by keeping a copy of your network documentation offsite.
Many companies forget to safeguard their software.
You can easily get a new copy of the software from your vendor if you registered it, but few people register all of their software. If your software is not registered, you will need your accounting records to prove that you owned it. Otherwise, you'd better hope that the vendor kept a record of the purchase. To avoid this problem, keep copies of your software offsite with your backup media. If you have extra equipment, you may want to include it in your disaster recovery plan.