Bitmaps are stored in blocks that have a unique header format with a level of minus one (-1) and a block size of 87 or 88 depending on the Euclidian ordering of the platform. The errors discussed in this section indicate a bitmap block header that violates that format.

Use the DSE command CHANGE with the BSIZ=87 or 88 (depending on platform) and LEVEL=-1FF qualifiers to correct the problem. If the block size is too small, the bitmap will have to be reconstructed using MAP RESTORE or manually from INTEG error reports using MAP FREE. If there are other errors, defer any MAP RESTORE until after they have been repaired.