In what seems to me to be kicking a perfectly good supplier when it's down, Beth Pariseau at SearchDataBackup.com reports that IBM stated that FalconStor's SIR deduplication add-on for their virtual tape library didn't make it through the validation process. Given the fact that IBM recently bought Diligent Technologies for its ProtecTIER deduping VTL software, it's no surprise that someone at IBM wasn't convinced that Single Instance Repository, or SIR, was the best thing since sliced bread.