On Friday 11 July 2003 16:57, Peter T. Breuer wrote: > "A month of sundays ago Ulrich Hahn wrote:" > > > scheme-1 and scheme-2 with software-raid on the fall-back-server will > > not work out. I'm not sure if sw-raid over sw-raid is prone to deadlocks > > (Peter?), but the tests I did showed that extremly low rebuild-rates, > > even > > It's impossible to say. The raid code is sophisticated = obscure. > I think there are no deadlocks - it maintains a separate local cache > of request structs per device, as I recall. Ummmm ... but what about > buffers? It may maybe deadlock for buffers if there is enough copying > and it's done synchronously ... > > > with tuned md-parameters, will make any medium sized raid unusable. > Thanks Ulrich and Peter for your answers and help, that helps me a lot for our future plans. Best regards, Bernd - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
