To convert a price from dollars per gallon to dollars per DGE, multiply the price per gallon of the alternative fuel by the conversion factor. Conversion factor to DGE CNG (in GGE) 1.12 Ethanol (E85) 1.58 Propane 1.54 Biodiesel (B20) 1.02 Biodiesel (B100) 1.10.
What is the purpose to use BBU with Raid controller. The BBU (battery backup unit) provides power to the RAID controller during an unexpected power off. It will maintain cache data that has not been written to disk. It will supply 24+ hours of power to the cache on the RAID controller. Backups from a RAID array are usually handled on an external USB drive or network storage.
RAID is basically a group of disks, usually with one or both characteristics of parity and striping. Parity is redundancy of your blocks of data on the disks; striping allows the individual drive speeds and feeds to add up, giving you more performance than a single disk could provide.