Verify, recover, and optimize ISAM files (Revision 4 or higher)

The ISAM file maintenance utility (isutl) performs maintenance on Revision 4 or higher ISAM files. Maintenance includes verifying the integrity of files, recovering corrupted files, reclaiming deleted record space, converting to compressed or static RFA file types, ordering data by a particular key, and packing indexes.

Isutl has the following options:

isutl ‑f - Fast‑load a sequential file

isutl ‑i - Launch the information advisor

isutl ‑p - Patch an ISAM file to another version

isutl ‑r - Rebuild an ISAM file (Revision 4 or higher)

isutl ‑v - Verify the integrity of an ISAM file (Revision 4 or higher)