Most of the data is stored on data.smartdublin.ie, the exceptions are listed here.
Some of the data is hosted locally, for example SDCC ArcGIS data is stored on http://data-sdublincoco.opendata.arcgis.com, the associated GeoJSON and CSV files are on Dublinked.
The flooding data is stored on AWS (the CSV files are, however, on Dublinked).
Some data is stored on http://opendata.dublincity.ie/, a DCC IS internal VM. The following datasets are affected:
The availability of these datasets depends on http://opendata.dublincity.ie/