Dell PowerVault 120T DDS4 User Guide - Page 49

Error Rate the uncorrectable error rate is < 10 -15 Reliability Mean Time Between Failures: The MTBF is 225,000 power on hours, assuming a duty cycle of 40%, where: Duty cycle = Tape Motion Time / Power-on Time x 100. Mean Time To Repair: MTTR is 30 minutes because at the field level the entire drive is considered a Field Replacable Unit (FRU). Durability: Autoloader: Cartridge Swap (MSBF): 180,000 Magazine Load/Unload: 30,000 Drive: Start/Stop: 400,000 times Reposition: 3,000,000 times Thread/Unthread: 10,000 times Load/Eject: 10,000 times Recommended Tapes DDS-4 DDS-3 DDS-2 DDS-1 Cleaning Sony DGD150F Sony DGD125P Sony DGD120P Sony DG90P Sony DGD15CL Power External 100-120 V 0.5[A] 200-240 V 0.3[A] Internal Voltage DC 5 V +/-5% Max Ripple 100 mV p-p Maxium (load/unload) 2.9 A Typical (write/read) 1.3 A B-2 Dell PowerVault 120T DDS4 Autoloader User's Guide