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Unmountable ZFS external USB Disk, help?


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Hi all, apparently its my luck that this happens a day before I go travelling.

 

I have 2 new 16TB Western Digital "My Book" that I have connected to my unraid.

I decided about a week ago to format them both with ZFS (To try out ZFS), so I did and filled them with data.

 

Today, I shut down both servers and moved the disks to the second server, so I could back them up.

Upon starting up, the first disk will not mount, but the second appears to mount fine, both were formatted the same way without errors.

 

Checking the disk log I see this:

text  error  warn  system  array  login  

Jul 29 23:13:14 soundwave kernel: sd 1:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16).
Jul 29 23:13:14 soundwave kernel: sd 1:0:0:0: [sda] 31251759104 512-byte logical blocks: (16.0 TB/14.6 TiB)
Jul 29 23:13:14 soundwave kernel: sd 1:0:0:0: [sda] 4096-byte physical blocks
Jul 29 23:13:14 soundwave kernel: sd 1:0:0:0: [sda] Write Protect is off
Jul 29 23:13:14 soundwave kernel: sd 1:0:0:0: [sda] Mode Sense: 47 00 10 08
Jul 29 23:13:14 soundwave kernel: sd 1:0:0:0: [sda] No Caching mode page found
Jul 29 23:13:14 soundwave kernel: sd 1:0:0:0: [sda] Assuming drive cache: write through
Jul 29 23:13:14 soundwave kernel: sda: sda1
Jul 29 23:13:14 soundwave kernel: sd 1:0:0:0: [sda] Attached SCSI disk
Jul 29 23:13:57 soundwave emhttpd: WD_My_Book_25ED_32504A353237474A-0:0 (sda) 512 31251759104
Jul 29 23:13:57 soundwave emhttpd: read SMART /dev/sda
Jul 29 23:14:03 soundwave unassigned.devices: Disk with ID 'WD_My_Book_25ED_32504A353237474A-0:0 (sda)' is not set to auto mount.
Jul 29 23:29:00 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync2'...
Jul 29 23:29:03 soundwave unassigned.devices: Successfully mounted 'sda1' on '/mnt/disks/sys_sync2'.
Jul 29 23:29:03 soundwave unassigned.devices: Device '/dev/sda1' is not set to be shared.
Jul 29 23:30:01 soundwave unassigned.devices: Unmounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync2'...
Jul 29 23:30:13 soundwave unassigned.devices: Successfully unmounted 'sda1'
Jul 29 23:38:38 soundwave kernel: sd 1:0:0:0: [sda] Spinning up disk...
Jul 29 23:38:57 soundwave kernel: sd 1:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16).
Jul 29 23:38:57 soundwave kernel: sd 1:0:0:0: [sda] 31251759104 512-byte logical blocks: (16.0 TB/14.6 TiB)
Jul 29 23:38:57 soundwave kernel: sd 1:0:0:0: [sda] 4096-byte physical blocks
Jul 29 23:38:57 soundwave kernel: sd 1:0:0:0: [sda] Write Protect is off
Jul 29 23:38:57 soundwave kernel: sd 1:0:0:0: [sda] Mode Sense: 47 00 10 08
Jul 29 23:38:57 soundwave kernel: sd 1:0:0:0: [sda] No Caching mode page found
Jul 29 23:38:57 soundwave kernel: sd 1:0:0:0: [sda] Assuming drive cache: write through
Jul 29 23:38:57 soundwave kernel: sda: sda1
Jul 29 23:38:57 soundwave kernel: sd 1:0:0:0: [sda] Attached SCSI disk
Jul 29 23:38:58 soundwave unassigned.devices: Disk with ID 'WD_My_Book_25ED_3348475A58554C4E-0:0 (sda)' is not set to auto mount.
Jul 29 23:39:01 soundwave emhttpd: read SMART /dev/sda
Jul 29 23:40:04 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:40:06 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:40:30 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:40:33 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:40:43 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync'...
Jul 29 23:40:45 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:41:32 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync'...
Jul 29 23:41:35 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:42:49 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync'...
Jul 29 23:42:52 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:43:08 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:43:11 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:43:22 soundwave ool www[19861]: /usr/local/emhttp/plugins/unassigned.devices/scripts/rc.unassigned 'detach' 'sda' 'true'
Jul 29 23:43:24 soundwave unassigned.devices: Device 'sda' has been detached.
Jul 29 23:45:44 soundwave kernel: sd 1:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16).
Jul 29 23:45:44 soundwave kernel: sd 1:0:0:0: [sda] 31251759104 512-byte logical blocks: (16.0 TB/14.6 TiB)
Jul 29 23:45:44 soundwave kernel: sd 1:0:0:0: [sda] 4096-byte physical blocks
Jul 29 23:45:44 soundwave kernel: sd 1:0:0:0: [sda] Write Protect is off
Jul 29 23:45:44 soundwave kernel: sd 1:0:0:0: [sda] Mode Sense: 47 00 10 08
Jul 29 23:45:44 soundwave kernel: sd 1:0:0:0: [sda] No Caching mode page found
Jul 29 23:45:44 soundwave kernel: sd 1:0:0:0: [sda] Assuming drive cache: write through
Jul 29 23:45:44 soundwave kernel: sda: sda1
Jul 29 23:45:44 soundwave kernel: sd 1:0:0:0: [sda] Attached SCSI disk
Jul 29 23:45:45 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:45:48 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:45:57 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:45:59 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:46:04 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:46:07 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:51:02 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:51:04 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:51:34 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:51:37 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:52:02 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:52:05 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 29 23:57:53 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 29 23:57:56 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 30 00:00:49 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 30 00:00:52 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''
Jul 30 00:01:20 soundwave unassigned.devices: Mounting partition 'sda1' at mountpoint '/mnt/disks/sys_sync1'...
Jul 30 00:01:22 soundwave unassigned.devices: Mount of 'sda1' failed: 'Cannot determine Pool Name of '/dev/sda1''

** Press ANY KEY to close this window ** 

 

In the UI, I can see the disk mount button but it just fails every time I try to mount it.

image.png.77d1cee1ee9d4a0a74a31f2dd4952552.png

 

I can't see any other obvious errors, I tried detatching and disconnecting both disks, then reconnecting and same scenario (disk 1 fails to mount).

 

This is the fist time I'm using ZFS, and I'm not sure where to start.

I can't find any other details in the Ui, there are no SMART errors showing, its a new disk a week old.

 

Can anyone help?

Edited by KptnKMan
  • Upvote 1
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Some responses I've seen so far:

# zpool import /dev/sda
cannot import '/dev/sda': no such pool available

 

# zpool import
no pools available to import

 

# zfs mount 
sys_sync2                       /mnt/disks/sys_sync2

 

# zfs list
NAME        USED  AVAIL     REFER  MOUNTPOINT
sys_sync   14.4T   128M     14.4T  /mnt/disks/sys_sync1
sys_sync2  12.5T  1.95T     12.5T  /mnt/disks/sys_sync2

 

I also tried:

# zfs mount sys_sync

but this appears to hang and do nothing.

Edited by KptnKMan
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  • 3 months later...

U V: 6:12.4 - all plugins up to date.
I am also getting this error on a (x6) disk z2 pool in UD. 
I created the pool in the array with the gui.  Then moved the disks to UD, as it's going to be an offsite backup, then deleted the pool from the unraid gui.  Mounted the pool in UD and moved the backup images over.  Everything transferred without issue. 
I unmounted it went about my day till i remembered i wanted to put one more folder in the backup pool before i move it to its new home across town...now it wont mount.

Quote

Nov 15 11:16:37 miiCARstorage unassigned.devices: Mounting partition 'sdae1' at mountpoint '/mnt/disks/elmonsitebu'...
Nov 15 11:16:39 miiCARstorage unassigned.devices: Mount of 'sdae1' failed: 'Cannot determine Pool Name of '/dev/sdae1''

it doesn't matter which of the 6 disks i click mount on, it says the same info (just changed to match the disk i am clicking mount on)
 

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On 11/15/2023 at 11:58 AM, JorgeB said:

UD doesn't support zfs pools, you can import the pool manually with zpool import.

weird, how i mount and run ZFS pools in UD all the time!  i must have the special edition?? 🤪
anyway, after making a pool and putting those drives in there, again, then removing the drives, and deleting the pool, it did mount in UD again, and i transfered about 3tb from my array!  

Anyway...i think i am having USB issues, as random issues come and go lately.

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