Diagnosis
Index &v1& is possibly corrupt. It contains &v2& blocks, whereastable &v3& contains only &v4&. This could indicate that the index iscorrupt, but is not proof that this is actually the case.
Background: There is no exact method of identifyiong a corruptindex. The only way to tell if an index has been corrupted is, forexample, to delete the index and reconstruct it, paying attention asyou do so to how the memory usage changes during the process.

System Response
Using this index to access the system, is no longer efficient and leadsto impaired performance. The index needs to be reconstructed.

Procedure
The index must be repaired. Use a repair routine that has been assignedto this analysis routine (function Remove Errors
in transaction RSRV).
Alternatively, you can delete and reconstruct the index manually byusing the ABAP data dictionary.
If after you have repaired the index &v1&, the system still tells youthat the index is possibly corrupt, then there has been amistake in the way the index has been assessed. The index is not reallycorrupt at all, and you can ignore the warning message in this case.