Informix Error -12055: Smart Large Objects: Cannot open smart-large-object header partition.

Reasons / Common Causes

-12055 fires when the smart-large-object header partition can't be opened — per the official guidance.

1. The chunk being down, per the official guidance — the named, likely cause.

Solutions / Resolution

1. Ensure the smart-large-object space chunk is up, per the official guidance.

Examples

Checking chunk status

$ onstat -d

Diagnostic Checks

1. Check the chunk's online status, and bring it online if it's down.

Related Errors / Related Topics

• -12054 — "Smart Large Objects: Cannot open chunk adj partition." The same class of open failure, for the chunk adjacency partition rather than the header partition.

The header partition couldn't be opened, likely because the chunk is down — check chunk status.