Access is denied / The parameter is incorrect issues with HDD

[nicam90]

Hi all,

I have 2 NUC machines that are harvesting and pooling about 3600 plots from multiple external HDDs via USB 3.0 hubs.
Each NUC has connected 2 x USB 3.0 hubs of 16 ports. So all hub ports are connecting to 64 external HDDs usb 3.0 type.

All HDDs are kept alive by writing a file on them with the timestamp every 5 minutes. The HDDs temperature is about 38°C
Rarely (like 1 time per week) one random HDD get "The parameter is incorrect" and soon after "Access is denied" error in chia logs.
By turning off and on the HDD, the issue is solved.
Getting this kind of error, the HDD (grey_4) could not be accessed anymore as the owner and group were set to "unknown" (42949672):

drwxr-xr-x    1 NUC2     UsersGrp         0 Dec 31  1979 grey_2
drwxr-xr-x    1 NUC2     UsersGrp         0 Dec 31  1979 grey_3
drwxr-x---    1 42949672 42949672         0 Jan 24  2022 grey_4
drwxr-xr-x    1 NUC2     UsersGrp         0 Dec 31  1979 grey_5
drwxr-xr-x    1 NUC2     UsersGrp         0 Dec 31  1979 grey_6

So the plots will not be loaded, getting this error:

2022-08-13T10:09:04.531 harvester chia.harvester.harvester: ERROR    Error using prover object badbit or failbit after reading size 4 at position 107545968087
2022-08-13T10:09:04.546 harvester chia.harvester.harvester: ERROR    File: C:\D\grey_4\plot-k32-2021-09-23-12-12-34xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.plot Plot ID: 34xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx, challenge: 17xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx, plot_info: PlotInfo(prover=<chiapos.DiskProver object at 0x0000013F6AE5D330>, pool_public_key=None, pool_contract_puzzle_hash=<bytes32: ffxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>, plot_public_key=<G1Element aedexxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>, file_size=108836057255, time_modified=1632415574.0)

Before upgrading to chia 1.5.0. (was on 1.2.11 I think) the one affected HDD was not acessed and its plots not loaded, but the remaining 31 HDD (from one NUC) were working fine and plots were loaded. And the pool recognized the harvester with the remaining plots.

But after upgrading to 1.5.0, the rest of the plots from the other HDDs are not loaded, even though the HDDs are accessbile and chia farm summary recognize all of them:

PS C:\Users\NUC2\AppData\Local\chia-blockchain\app-1.5.0\resources\app.asar.unpacked\daemon> ./chia farm summary
Farming status: Farming
Local Harvester
   1440 plots of size: 142.520 TiB
Plot count for all harvesters: 1440
Total size of plots: 142.520 TiB
Estimated network space: 21.462 EiB
Expected time to win: 1 month

Aslo the pool is not recognizing the harvester anymore because its not loading any plots.

Can someone please help me on this issue with an advice /suggestion?
Does anybody else have this error / behaviour?
Thanks!

Version
1.5.0

What platform are you using?
Windows

What ui mode are you using?
GUI / CLI

Relevant log output

2022-08-13T10:11:49.667 harvester chia.harvester.harvester: INFO     3 plots were eligible for farming 32029a7ff4... Found 0 proofs. Time: 4.67095 s. Total 1440 plots
2022-08-13T10:11:50.594 harvester chia.plotting.manager   : ERROR    _refresh_callback raised: [WinError 87] The parameter is incorrect: 'C:\\D\\grey_4' with the traceback: Traceback (most recent call last):
  File "chia\plotting\manager.py", line 137, in _refresh_task
  File "chia\plotting\util.py", line 76, in get_plot_filenames
  File "pathlib.py", line 1215, in resolve
  File "pathlib.py", line 215, in resolve
OSError: [WinError 87] The parameter is incorrect: 'C:\\D\\grey_4'

...........

2022-08-13T10:11:56.122 harvester chia.harvester.harvester: INFO     0 plots were eligible for farming 32029a7ff4... Found 0 proofs. Time: 0.00000 s. Total 0 plots
...........

2022-08-13T10:14:00.577 harvester chia.plotting.manager   : ERROR    _refresh_callback raised: [WinError 5] Access is denied: 'C:\\D\\grey_4' with the traceback: Traceback (most recent call last):
  File "chia\plotting\manager.py", line 137, in _refresh_task
  File "chia\plotting\util.py", line 76, in get_plot_filenames
  File "pathlib.py", line 1215, in resolve
  File "pathlib.py", line 215, in resolve
PermissionError: [WinError 5] Access is denied: 'C:\\D\\grey_4'