25+ Hardware Raid Card US. Raid 0,1,5,6,10,50,single disk,jbod cache memory: The card supports jbod, raid 0, 1, and 10.
The raid controller on the card combines drives into a virtual volume.
Hardware raid is mandatory for running vm's on local storage without penalty, and i need to stress *good* hardware raid cards with generous cache and not just fake raid posing emulators like half of them are. These devices make hardware raid have best performance. The raid can be implemented either using a special controller (hardware raid), or by an operating system driver (software raid). If it has it, this is the preferable thing to do.