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Informix Error -12060: Smart Large Objects: Cannot read SB_LOMAP_SLOT.

Cause and resolution

Smart Large Objects: Cannot read SB_LOMAP_SLOT.

The database server cannot read the extent map for the smart large object.

Check to see if the smart-large-object space is corrupt or if the chunk is down.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-12060 fires when the server can't read a smart large object's extent map — per the official guidance.

  1. The smart-large-object space being corrupt, or the chunk being down, per the official guidance — the direct, only cause.
Solutions / Resolution
  1. Check whether the space is corrupt or the chunk is down, per the official guidance.
Examples
Checking chunk status
$ onstat -d
Diagnostic Checks
  1. Check the chunk's online status, and investigate for space corruption if it's already up.
Related Errors / Related Topics
  • -12028 — "Smart Large Objects: Cannot delete SB_LOMAP_SLOT." A related extent-map error, on deleting the slot rather than reading it.

The extent map couldn't be read, likely due to a corrupt space or a down chunk — check chunk status.