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Informix Error -12118: Smart Large Objects: Bad LO extent map.

Cause and resolution

Smart Large Objects: Bad LO extent map.

The extent map record for the smart large object is corrupt. Most likely the sbspace is corrupt. Run oncheck -ce on the sbspace. You might need to restore the sbspace from an archive.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-12118 fires when a smart large object's extent-map record is corrupt — per the official guidance.

  1. The sbspace most likely being corrupt, per the official guidance — the direct, named cause.
Solutions / Resolution
  1. Run oncheck -ce on the sbspace, per the official guidance.
  2. Restore the sbspace from an archive if needed, per the official guidance.
Examples
Checking sbspace extent consistency
$ oncheck -ce sbspace_name
Diagnostic Checks
  1. Run oncheck -ce on the affected sbspace, and restore from archive if corruption is confirmed.
Related Errors / Related Topics
  • -12060 — "Smart Large Objects: Cannot read SB_LOMAP_SLOT." A related extent-map error, on failing to read the slot rather than finding it corrupt.
  • -12104 — "Smart Large Objects: Inconsistent LO map was encountered." A related extent-map error, on a detected inconsistency rather than outright corruption.

A smart large object's extent-map record is corrupt, most likely due to sbspace corruption — run oncheck -ce and restore from archive if needed.