Backup/Restore Failures – The Real Numbers!. How confident are you that you can restore from your backups? Check out this issue of W2Knews for some startling statistics about the reliability of tape media. A Yankee Group and Sunbelt Software survey of 362 IT executives in March 2004 found 42 percent of respondents had been unable to recover data from tape in the last year as a result of tape unreliability. [W2Knews]