On 02/24/2013 03:38 PM, Stone wrote: > if i can copy data. is there a way to check the files of consistency? > thx I'm not sure which files' consistency you mean here... the dd image in your nas? If so, you compute md5sums of each entire disk (rather time consuming). If you mean the data inside your encrypted array... You can only use whatever consistency mechanisms you already have for those files, like "par2" Reed-Solomon checksums. Phil -- 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