That is based off of the BER (bit error rate) of the drive, as stated by the manufacturer. It's usually spec'd at 1e-14 or 1e-15 - that is to say one in every h

That is based off of the BER (bit error rate) of the drive, as stated by the manufacturer. It's usually spec'd at 1e-14 or 1e-15 - that is to say one in every hundred trillion or one in every quadrillion bits. This works out to 12.5TB or 125TB respectively. http://www.enterprisestorageforum.com/storage-hardware/selecting-a-disk-drive-how-not-to-do-research-1.html http://www.enterprisestorageforum.com/storage-hardware/selec...