UUID ?? ?????????? ????? ?????????? ??? (Universally Unique Identifier) ?? ????????? ???, ?? ???? ?????????? ????????? ??? ??? ???? ?????????? ????????? ?????? ???????? ????????? ???????? ???? ?? ???????? ?? ???????? ????????? ????? ???????? ????? ?????????? ???? ??????, ?? ?????????? ?????????? ????????? ??????? ?????????? ???? ????????? ???? ???????? ???? ?????, ?????????? ??????? ???? ?????? ?? ?????? UUID ???? ???? ????? ?? ???????????, ??????? ????? ???? ????? ???????? ?????? ??????? ???? ???????? ???? ???????? ??????? UUID ?? ???????????? ???????? ????? ?????????? (GUID), ??? ???????? ???????????? ????????????????? ????? ?????? Linux ext2/ext3 ???? ???????, LUKS ????????? ????????, GNOME, KDE, Mac OS X ???????? ???????, ???? e2fsprogs ????????? UUID ??????????? ?????????? ????? ???? ?????

UUID ???? 32 ?????? 16 ??????? ??????? ??? ?????? ????, ?????? UUID ???????????? ??? ?????? 16^32 = 2^128, ?? ?????? 3.4 x 10^38? ?????? ????? ?????????????? 1 ????????? UUID ???? ????, ????? UUID ??????? ???? 100 ??????? ??? ???? ??????

UUID ?? ???? ???????? 32?? 16 ????? ?????? ??????, ?? ?????? ?????? ?????? ???? ?????? ???, ??????? 8-4-4-4-12 ?? 32?? ??????