# Maxfid

The maxfid is the last addressable frame on the disk. The what command outputs the
 current maxfid.

Any reference to a FID higher than maxfid results in the message:

 Referencing illegal frame.

## See also

- [Boot error codes](https://d3codex.com/unix/boot-error-codes/)
- [FID](https://d3codex.com/definitions/fid/)
- [Scrubber](https://d3codex.com/definitions/scrubber/)
- [what command](https://d3codex.com/tcl/what-command/)

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Source: https://d3codex.com/definitions/maxfid/ - part of the D3Codex reference.