How is the reliability and data integrity measured?
We are using only the most reliable and silent hard drives we know for intradisk. The drives have a MTBF of 600,000h according to manufacturer information, calculated with 2,400h operation time per year. This means we have a high possibility that after 5 years of continuous operation in 25 degree Celsius, 95% of the drives will still be working fine. We did avoid any fans because they are noisy and unreliable. A typical fan has an MTBF of only 15,000h, resulting in a mere 2 year continuous operation! After that most fans would be broken and not cooling the device any more.
