We have a QNAP NAS (TS-869L with firmware 4.2.2, if relevant) where we backup our data. Last night it completely filled up the drives that are in RAID 5 (ext4).

Now I can cd into the directory but I can't ls or rm any files: doing so hangs the terminal indefinitely, and the corresponding process goes in "D" status immediately:

25709 admin 280 D /bin/ls -F

Is there any way I can remove any file to restore functionality?


This has been solved by:

  • shutting down the NAS, and starting up again (reboot was of no use)
  • entering the recycle bin from the web interface
  • removing one file from the recycle bin

Anything else I tried failed.

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