Hello, I want to speed up rebuilding process of the raid to do that I'm going to apply the command: mdadm --grow --bitmap=internal --bitmap-chunk=NNNN /dev/mdX But I don't know how to calculate optimal value of bitmap-chunk option. How can I do that? Any help would be greatly appreciated. -- Roman -- 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