> It is really slow, recent kernels seem to be unsuitable for use as large > file servers, as the performance is, as you described it, "unbelievably > bad." Is this raid6 specific? Because FWIW md performance has been fine (not great, but fine) on my little raid5/10 file servers. As soon as I add dm-crypt to the mix it all goes to hell, though. Maybe it's a device-mapper thing? Is everybody affected using LVM? C. -- 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