1 Poolpart cannot be read by drivepool (SOLVED)

denywinarto · June 26

Hi, i woke up this morning after 1 drive removal to found out that other drive is missing from DP.
but upon checking further, windows still detects the drive and the poolpart is still there

I've tried rebooting and swapping the drive slot in the jbod but it remains the same.

Checked the permissions and all are good, So I haven't done the troubleshooting in second step. Any other thoughts?

One more thing, i was going to add another different drive but i'm hesitated because of this error, is it safe to do so under this error?

Shane · June 28

Try running the following in a command prompt run as administrator:

dpcmd refresh-all-poolparts

And where poolpartPath is the full path of the poolpart folder of the missing drive:

dpcmd unignore-poolpart poolPartPath
- for example, dpcmd unignore-poolpart e:\poolpart.abcdefgh-abcd-abcd-abcd-abcdefgh1234

And where volumeid is that of the "missing" drive (you can use the command 'mountvol' to get a list of your volume identifiers):

dpcmd hint-poolpart volumeid
- for example, dpcmd hint-poolpart \\?\Volume{abcdefgh-abcd-abcd-abcd-abcdefgh1234}\
- while poolparts and volumes happen to use the same format for their identifying string they are different objects

If that doesn't help, you may try one or more of the following, in no particular order of preference:

repairing DrivePool (windows control panel, programs and features, select StableBit DrivePool, select Change, select Repair)
uninstalling, rebooting and reinstalling DrivePool (may lose configuration but not duplication or content, and keep your license key handy just in case)
resetting the pool (losing balancing/placement configuration, but not duplication or content):
- Open up StableBit DrivePool's UI.
- Click on the "Gear" icon in the top, right-hand corner.
- Open the "Troubleshooting" menu, and select "Reset all settings..."
- Click on the "Reset" button.

Alternatively, you may try manually reseeding the "missing" drive:

if - and only if - you already had and have real-time duplication enabled for the entire pool and you just want to get going again ASAP:
- remove the "missing" drive from DrivePool
- quick format it (just make sure it's the right drive that you're formatting!!!)
- re-add the "missing" drive, let drivepool handle re-propagating everything from your other drives in the background.
otherwise:
- open the "missing" drive in Windows File Explorer (or other explorer of your choice)
- find the hidden poolpart.guid folder in the "missing" drive
- rename it from poolpart.guid to oldpart.guid (don't change the guid)
- remove the "missing" drive from DrivePool
- if the "missing" drive is now available to add again, proceed to:
  - re-add the "missing" drive
  - move all your folders and files (but not $recycle.bin, system volume information or .covefs) from the old oldpart.guid folder to the new poolpart.guid folder that's just been created
  - tell the pool to re-measure
  - once assured everything is showing up in the pool, you can delete the oldpart.guid folder.
- else if the "missing" drive is still not available to add again, proceed to:
  - copy your folders and files (but not $recycle.bin, system volume information or .covefs) from the old oldpart.guid folder to the pool drive
    - duplicates of your folders/files may exist on the pool, so let it merge existing folders but skip existing files
    - you may need to add a fresh disk to the pool if you don't have enough space on the remaining disks in the pool
  - check that everything is showing up in the pool
  - if all looks good, quick format the "missing" drive and it should then show up as available to be re-added.

denywinarto · June 27

Update :
tried running chkdsk on mountpoint of the drive but it found no errors, restarting DP afterwards but it still wont show up
Also here's the service log at the time the pool went missing

DrivePool.Service.exe    Warning    0    [Store] Event ItemRemoved took too long (00:00:08.4538480) on Sample.    2025-06-25 18:30:27Z    10659034984513
DrivePool.Service.exe    Warning    0    [Store] Event ItemRemoved took too long (00:00:08.4538640) on PoolPerformanceSample.    2025-06-25 18:30:27Z    10659034992258
DrivePool.Service.exe    Information    0    [Disks] Got Volume_Depart (volume ID: bf9dd6b0-e735-4cf0-a933-869eac4bb6ec, plex ID: 00000000-0000-0000-0000-000000000000, %: 0)...    2025-06-25 22:01:38Z    10785749148378
DrivePool.Service.exe    Information    0    [Disks] Got Disk_Depart (disk ID: b676580d-d87f-44d6-91eb-f81079434746)...    2025-06-25 22:01:38Z    10785749151177
DrivePool.Service.exe    Information    0    [Disks] Got Pack_Depart (pack ID: 18fb5a1f-466d-4b37-ab1e-205692d63646)...    2025-06-25 22:01:38Z    10785749153308
DrivePool.Service.exe    Warning    0    [PoolPartUpdates] Lost existing pool part A1B0B694-23A3-46EE-90BE-ED075FEA47AC (isCloudDrive=False, isOtherPool=False)    2025-06-25 22:01:39Z    10785753531981
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeMissingDisk, PoolModeNoReportIncomplete, PoolModeOverrideAllowCreateDirectories, PoolModeNoMeasure, PoolModeNoReparse (lastKey=PoolPartUpdate, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-25 22:01:39Z    10785753546004
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeMissingDisk, PoolModeReadOnly, PoolModeNoReportIncomplete, PoolModeOverrideAllowCreateDirectories, PoolModeNoMeasure, PoolModeNoReparse (lastKey=PoolPartUpdate, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-25 22:01:39Z    10785753547764
DrivePool.Service.exe    Information    0    [Disks] Updating disks / volumes...    2025-06-25 22:01:39Z    10785759159288
DrivePool.Service.exe    Warning    0    [RemoveDriveFromPool] Error removing \\?\Volume{f2894a3e-fa41-45d1-8d65-b6f395096a44}\PoolPart.80817d65-727d-49e9-9d62-f542610785a9\ from the pool. Removal canceled    2025-06-26 00:41:13Z    10881492181069
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeMissingDisk, PoolModeReadOnly, PoolModeOverrideAllowCreateDirectories, PoolModeNoMeasure, PoolModeNoReparse (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:41:13Z    10881492377531
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeMissingDisk, PoolModeReadOnly, PoolModeNoMeasure, PoolModeNoReparse (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:41:13Z    10881492379096
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeMissingDisk, PoolModeReadOnly, PoolModeNoMeasure (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:41:13Z    10881492383791
DrivePool.Service.exe    Information    0    [MetadataDuplicationConsistency] Pool parts missing on pool '\\?\GLOBALROOT\Device\HarddiskVolume69\'. Can't check metadata duplication consistency.    2025-06-26 00:41:13Z    10881492557218
DrivePool.Service.exe    Information    0    [Main:13] Pre-shutdown started.    2025-06-26 00:44:02Z    10883185062617
DrivePool.Service.exe    Information    0    [Main:13] Pre-shutdown complete.    2025-06-26 00:44:02Z    10883185135339
DrivePool.Service.exe    Warning    0    [RemoteControlKeepAliveListener] Error receiving. A blocking operation was interrupted by a call to WSACancelBlockingCall    2025-06-26 00:44:06Z    10883227910320
DrivePool.Service.exe    Information    0    [Main] StableBit DrivePool 2.2.4.1162    2025-06-26 00:47:21Z    589331673
DrivePool.Service.exe    Information    0    [Main] Microsoft Windows NT 10.0.17763.0    2025-06-26 00:47:21Z    589356198
DrivePool.Service.exe    Information    0    [Main] Loading settings...    2025-06-26 00:47:21Z    589365412
DrivePool.Service.exe    Information    0    [Main] No legacy pool ID found. Will not upgrade legacy pools.    2025-06-26 00:47:21Z    589789060
DrivePool.Service.exe    Information    0    [Main] Checking StableBit CloudDrive start status...    2025-06-26 00:47:21Z    589789859
DrivePool.Service.exe    Information    0    [Main] Not waiting for the StableBit CloudDrive system service. Service CloudDriveService was not found on computer '.'.    2025-06-26 00:47:21Z    589804010
DrivePool.Service.exe    Information    0    [Main] Loading lifetime statistics...    2025-06-26 00:47:21Z    589805296
DrivePool.Service.exe    Information    0    [Main] Starting remote control...    2025-06-26 00:47:21Z    589829516
DrivePool.Service.exe    Information    0    Comm server started on: tcp://127.0.0.1:27525/Comm1    2025-06-26 00:47:21Z    589849152
DrivePool.Service.exe    Information    0    [Main] Starting running file...    2025-06-26 00:47:21Z    590157693
DrivePool.Service.exe    Information    0    [Main] Starting user feedback...    2025-06-26 00:47:21Z    590165034
DrivePool.Service.exe    Information    0    [Main] Starting root tasks...    2025-06-26 00:47:21Z    590170843
DrivePool.Service.exe    Information    0    [Main] Enumerating disks...    2025-06-26 00:47:21Z    590253733
DrivePool.Service.exe    Information    0    [Disks] Updating disks / volumes...    2025-06-26 00:47:25Z    633514898
DrivePool.Service.exe    Information    0    [Main] Starting disk metadata...    2025-06-26 00:47:50Z    878984860
DrivePool.Service.exe    Information    0    [Main] Starting CoveFs...    2025-06-26 00:47:50Z    880350307
DrivePool.Service.exe    Information    0    [CoveFs] Waiting for pools to mount...    2025-06-26 00:47:50Z    880394909
DrivePool.Service.exe    Information    0    [CoveFs] All 1 pools mounted.    2025-06-26 00:47:50Z    880418117
DrivePool.Service.exe    Information    0    [CoveFs] Waiting for pool parts to arrive...    2025-06-26 00:47:50Z    880419330
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:47:50Z    880503631
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:47:55Z    930637421
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:00Z    981414380
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:05Z    1031833538
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:10Z    1082077807
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:15Z    1132505116
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:20Z    1183422072
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:25Z    1233984510
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:30Z    1284461038
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:35Z    1335154648
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:40Z    1385327360
DrivePool.Service.exe    Information    0    [CoveFs] Pool 1d1285e5-0867-4d83-bb98-e09fd936e5b0 is missing some pool parts. Waiting... (Expected: 25, Found: 24)    2025-06-26 00:48:45Z    1436106451
DrivePool.Service.exe    Warning    0    [CoveFs] Timed out waiting for all pool parts to arrive. Continuing startup...    2025-06-26 00:48:50Z    1481282688
DrivePool.Service.exe    Information    0    [CoveFs] Pool found on: \\?\GLOBALROOT\Device\HarddiskVolume67 (pool ID=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:48:50Z    1481307892
DrivePool.Service.exe    Information    0    [Disks] Updating disks / volumes...    2025-06-26 00:48:50Z    1481405407
DrivePool.Service.exe    Information    0    [Rebalance] Loading balancers (LoadBuiltIn=True)...    2025-06-26 00:48:50Z    1481909237
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeNormal (lastKey=CoveFsPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:48:50Z    1483414805
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeMissingDisk (lastKey=PoolPartUpdate, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:48:50Z    1483611264
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeMissingDisk, PoolModeReadOnly (lastKey=PoolPartUpdate, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:48:50Z    1483624127
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeMissingDisk, PoolModeReadOnly, PoolModeNoMeasure (lastKey=PoolPartUpdate, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:48:50Z    1483638304
DrivePool.Service.exe    Information    0    [MetadataDuplicationConsistency] Pool parts missing on pool '\\?\GLOBALROOT\Device\HarddiskVolume67\'. Can't check metadata duplication consistency.    2025-06-26 00:48:51Z    1489739972
DrivePool.Service.exe    Information    0    [Main] Updating free space...    2025-06-26 00:49:02Z    1602316751
DrivePool.Service.exe    Information    0    [Main] Starting notifications...    2025-06-26 00:49:02Z    1602349648
DrivePool.Service.exe    Information    0    [Main] Starting performance samplers...    2025-06-26 00:49:02Z    1602401755
DrivePool.Service.exe    Information    0    [Main] Starting notification tasks...    2025-06-26 00:49:02Z    1602411531
DrivePool.Service.exe    Information    0    [Main] Starting notification UIs...    2025-06-26 00:49:02Z    1602417131
DrivePool.Service.exe    Information    0    [Main] Service started.    2025-06-26 00:49:02Z    1602511435
DrivePool.Service.exe    Information    0    [Main:6] Opened DrivePool_PreShutdown (CreatedNew=False)    2025-06-26 00:49:02Z    1602533286
DrivePool.Service.exe    Information    0    [Main:6] Opened DrivePool_PreShutdownStarted (CreatedNew=False)    2025-06-26 00:49:02Z    1602534347
DrivePool.Service.exe    Information    0    [Main:6] Opened DrivePool_PreShutdownComplete (CreatedNew=False)    2025-06-26 00:49:02Z    1602535275
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeReadOnly, PoolModeNoMeasure (lastKey=PoolPartUpdate, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:53:05Z    4036064523
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeNoMeasure (lastKey=PoolPartUpdate, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:53:05Z    4036066379
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeNormal (lastKey=PoolPartUpdate, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:53:05Z    4036068055
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeOverrideAllowCreateDirectories (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:53:20Z    4188013468
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeNoReportIncomplete, PoolModeOverrideAllowCreateDirectories (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:53:20Z    4188015415
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeNoReportIncomplete, PoolModeOverrideAllowCreateDirectories, PoolModeNoMeasure (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:53:20Z    4188016565
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeNoReportIncomplete, PoolModeOverrideAllowCreateDirectories, PoolModeNoMeasure, PoolModeNoReparse (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 00:53:20Z    4188017589
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeOverrideAllowCreateDirectories, PoolModeNoMeasure, PoolModeNoReparse (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 04:24:36Z    130941216138
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeNoMeasure, PoolModeNoReparse (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 04:24:36Z    130941218615
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeNoReparse (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 04:24:36Z    130941220124
DrivePool.Service.exe    Information    0    [FsControl] Set overall pool mode: PoolModeNormal (lastKey=DrivePoolService.Pool.Tasks.RemoveDriveFromPool, pool=1d1285e5-0867-4d83-bb98-e09fd936e5b0)    2025-06-26 04:24:36Z    130941221495
DrivePool.Service.exe    Information    0    [Disks] Updating disks / volumes...    2025-06-26 14:06:25Z    480030359947

Seems like it lost that pool when i tried to remove a drive..

denywinarto · June 28

Whew, i don't know which one actually fixed it, but it suddenly showed up on my pool!

I did everything above until the poolpart.guid cannot be renamed, so i tried putting the drive offline and online DP said one of the disk is missing, thats when i noticed it's back on the pool. Many thanks Shane saved me from massive headache of copying 20tb files!

I almost reinstalled DP as well, i was too focused on finding the missing drive on the non-pooled Iist I didn't notice it's back on the pool

denywinarto · June 28

Forgot to mark it as solved, the solution is one of these i guess since i havent tried the rest.

Quote

Try running the following in a command prompt run as administrator:

dpcmd refresh-all-poolparts

And where poolpartPath is the full path of the poolpart folder of the missing drive:

dpcmd unignore-poolpart poolPartPath

for example, dpcmd unignore-poolpart e:\poolpart.abcdefgh-abcd-abcd-abcd-abcdefgh1234

And where volumeid is that of the "missing" drive (you can use the command 'mountvol' to get a list of your volume identifiers):

dpcmd hint-poolpart volumeid

for example, dpcmd hint-poolpart \\?\Volume{abcdefgh-abcd-abcd-abcd-abcdefgh1234}\

while poolparts and volumes happen to use the same format for their identifying string they are different objects

If that doesn't help, you may try one or more of the following, in no particular order of preference:

repairing DrivePool (windows control panel, programs and features, select StableBit DrivePool, select Change, select Repair)

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1 Poolpart cannot be read by drivepool (SOLVED)

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denywinarto

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