Basically, if you have 100 GB in files to store or software to install, you'll need a hard drive with at least 110 GB of space.
N'ụzọ bụ isi, ọ bụrụ na ị nwere 100 GB na faịlụ iji chekwaa ma ọ bụ ngwanrọ iji wụnye, ị ga-achọ dọọ ike na ọ dịkarịa ala 110 GB nke ohere.