All of my services were gone

[ShaningYu]

I checked my ArcGIS Services today and observed that All of my services were gone.  Then, I tried to recovered them.  In my first step, I opened the mxd that was used before and wanted to re-publish it as a map service.  However, the process failed due to 'Feature service requires a registered database'.  In this mxd, the map layer is sourced from a gbd file.  What should I do to fix the problem?  Thanks.

[NeilAyres]

Well, where is the data? And where might it have got to. Have you moved it somewhere, or an IT guy changed srever names / addresses or whatnot.

As I understand it, when you publish an mxd map, a copy of it is made somewhere on the server, the mxd contains the pointers to the data sources, the symbolgies, layer visibility scale and so forth. THis is referenced by the service. So if the data is not where it is supposed to be the service will not work.

[ShaningYu · Accepted solution]

Problem found to be the expiration of the ArcGIS Server.  Thanks for help.