1590313 : dCache Ordner verschwunden

Created: 2026-04-08T08:03:19Z - current status: new

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Anonymized Summary of the Issue

A user reports that their previously accessible path on the dCache filesystem (/pnfs/desy.de/desy/it-uni-hh/...) is no longer visible. Instead, only a folder named m appears under /pnfs/desy.de/. The user needs to regain access to their data stored in the desy/it-uni-hh directory.

Possible Solution & Next Steps

  1. Check for Mount Changes or Restructuring The disappearance of the desy/it-uni-hh path suggests a potential restructuring of the dCache filesystem. According to the storage system documentation, dCache is managed by DESY IT, and changes to mounts may occur without prior notice.

  2. Verify Access via Alternative Paths

  3. The m folder might be a new mount point or a symbolic link. Try listing its contents: bash ls -l /pnfs/desy.de/m/

  4. If the data was migrated, it could be nested under /pnfs/desy.de/m/desy/it-uni-hh/.

  5. Contact DESY IT for Support Since dCache is managed by DESY IT, the user should:

  6. Email maxwell.service@desy.de (for missing mounts or technical issues).
  7. CC uco@desy.de (for general questions about dCache access).

  8. Provide the exact path (/pnfs/desy.de/desy/it-uni-hh/...) and describe the issue.

  9. Check for Quota or Permission Issues If the data still exists but is inaccessible, it might be due to:

  10. Quota limits (unlikely, as the path would still be visible).
  11. Permission changes (verify with ls -ld /pnfs/desy.de/desy/it-uni-hh).

Sources Used