olemus IT alal
peegli (2) loomine
=
the operation of copying data, as an exact copy
https://www.techopedia.com/definition/1068/data-mirroring

näide
IEC 732-03-26::
faili koopia hoidmine teises võrgusaidis
= maintenance of a copy of a file at another network site

vt ka
- ketta peegeldamine
- portide peegeldamine