Fore 24 Ionawr, cafwyd mater technegol a achosodd ddiffyg yn y ddwy ganolfan ddata sy'n cael eu gweithredu gan Wasanaeth Gwybodeg GIG Cymru (NWIS) ar ran Gwasanaeth Iechyd Gwladol (GIG) Cymru.
On the morning of the 24 January a technical issue occurred, which caused an outage at the two data centres operated by the NHS Wales Informatics Service (NWIS) on behalf of NHS Wales.