Hello ESRI Users
Please note names of TIFs and paths are made up for this example.
SDE 10.2.2. / ArcDesktop 10.2.2.
December 2014: I created a colour Orthophoto Mosiac Dataset called AREA1 in SDE 10.2.2
 CreateMosaicDataset D:\RASTER\conn\1.sde AREA1 4 BAND 8_BIT_UNSIGNED
 AddRastersToMosaicDataset I added 1000 TIFs to the Mosiac Dataset – these are stored on the File System D:\RASTER\tifs\*.tif
 DefineOverviews Identified 8 overview levels - These are stored on the File System D:\RASTER\overviews\*. tif
In part  the tifs are called 1.tif,2.tif, 3.tif…..999.tif, 1000.tif
Users access the Mosiac Dataset via an SDE connection.
All worked ok. Performance was good.
HOWEVER, we have now noticed that 4 tifs need replacing (500.tif,501.tif,502.tif and 504.tif) due to poor image quality.
I have naturally read the ESRI documentation and done some “googling” but I am still 100% unsure of the correct procedure.
Can anyone give me a “cookbook” / urls on what is the best procedure to make this update from your real-world experience?