Hello, I have seen that the only hardware raid controllers that can go faster than linux md raid are the controllers with BBU unit. Infact thanks to the battery the controllers can have a more aggressive write caching without the risk of losing data. Obviously in a standard pc there is not BBU to use with linux software raid. Now I see that latest hardware raid controllers exchange battery AND ram with a little flash disk. So I ask: if I add a fast (with little size) ssd to a linux server is there a way for linux md raid to use it as a cache to have safer writes and faster raid? Thanks in advance for interest. Mario -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
