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'Error: The parameter is incorrect' on prefetching


I've been seeing this error quite often over the past few days:




It seems to happen when prefetching. Is it likely to be a throttling thing as the drive is on Amazon Cloud Drive, or is it likely a bug elsewhere? It only ever happens on Read (Prefetch) I/O. Regular reads and writes go through without issue.


I can submit logs and drive tracing while it was happening if needed. It seems to happen in waves - I assume whenever prefetching is triggered.


Version Not sure if its relevant, but the drive is being used for DrivePool duplication.

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Here is what I am seeing with version .620 when I try to mount my older Google Drive 15TB 100MB chunk drive.




100 mb chunks were on legacy drives... i think you have to recreate! Hoping for the 100mb to return though tons of throttling and constant retries with current 20mb.

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Version .621 fixed the issue I was having with mounting my old 100MB chunk Google Drive.  I am still getting the "Error: The parameter is incorrect" on this drive though.


Glad that the 621 build fixed the above error.

Though, considering the changelog... 

* Fixed range error when mounting.

Sounds like it was directly related to this issue. 



As for the parameter is incorrect, if you're still getting that, did you already grab logs? 

If so, let me know, otherwise, could you enable logging and reproduce the issue: 


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