On Jul 8, 2010, at 12:37 PM, Ryan Wexler wrote:
> One thing I don't understand is why BBU will result in a huge performance gain. I thought BBU was all about power failures?
When you have a working BBU, the raid card can safely do write caching. Without it, many raid cards are good about turning off write caching on the disks and refusing to do it themselves. (Safety over performance.)