On Fri, 8 Jan 2016 22:09:15 +1300, Daniel Lawson wrote:
I like linux mdraid, but there are a number of situations in which good quality hardware RAID is vastly superior (performance being the main one).
The CPU processing required to do software RAID gets lost in the idle rounding error on current machines.
The kinds of issues that people seem to have with hardware RAID either stem from using poor quality components ( fake raid, motherboard hardware raid, low-end RAID controllers which are really just slightly smart HBAs etc), or from not having support contracts on hardware (and running into issues like “my RAID controller died and I couldn’t find the right replacement model so I couldn’t recover the array").
It offers far more opportunities for headaches than that. Software RAID rules.