I have a 4TB External HDD and i converted this HDD file system as ext3 i want to know how can i take backup of backup server using this HDD i have already a 3TB HDD(with power), in that i could able to take backup which is an ntfs file system. in this new HDD i have seen its a GPT file system and now i partitioned this and change it as ext3 if anybody needs further information i can give.. Please help to find out a way...