Note: This is the TOTAL amount of data for ALL servers to be backed up. The annual cost per GB is currently $1.25 and is based on spinning disk as the storage medium (i.e., not tape). Please bear in mind that, for every GB of data you wish to backup, ITS must provision anywhere from 3 to 6 times that amount, based on a 30 day retention period. EIS assumes a daily churn rate of 5%. For servers that have higher daily churn rates, the invoiced cost may be higher.