Mount fails with second pool

[besterino]

ZFS version: zfswin-2.3.1rc14
zfs-kmod-zfswin-2.3.1rc14
Windows Server 2022(21H2 (OS Build 20348.4529)

First pool (mirror 2x NVME SSD) mounted fine with the first free driveletter (D:)

Second pool (mirror 2x HDD) failed to mount

Before trying to setup the 2nd pool, I had 3 driveletters used:

1. C:\ (Windows OS)
2. D: (zfs pool 1)
3. N: (NFS share as created per other post)

Manually setting the driveletter to "on" did not help.
Manually settings the driveletter to a free one (E) worked.

PS C:\Users\Administrator> get-wmiobject win32_diskdrive


\\pool 1 (old)
Partitions : 2
DeviceID   : \\.\PHYSICALDRIVE4
Model      : ADATA SX8200PNP
Size       : 2048407280640
Caption    : ADATA SX8200PNP

Partitions : 2
DeviceID   : \\.\PHYSICALDRIVE3
Model      : ADATA SX8200PNP
Size       : 2048407280640
Caption    : ADATA SX8200PNP

\\OS
Partitions : 3
DeviceID   : \\.\PHYSICALDRIVE2
Model      : SAMSUNG MZAL4256HBJD-00BL2
Size       : 256052966400
Caption    : SAMSUNG MZAL4256HBJD-00BL2

\\pool 2 (new)
Partitions : 0
DeviceID   : \\.\PHYSICALDRIVE0
Model      : WDC WD100EFAX-68LHPN0
Size       : 10000830067200
Caption    : WDC WD100EFAX-68LHPN0

Partitions : 0
DeviceID   : \\.\PHYSICALDRIVE1
Model      : WDC WD100EFAX-68LHPN0
Size       : 10000830067200
Caption    : WDC WD100EFAX-68LHPN0

PS C:\Users\Administrator> zpool.exe create -O casesensitivity=insensitive -O normalization=formD -O compression=lz4 -O atime=off -o ashift=12 BackupOpenZFS mirror '\\?\PHYSICALDRIVE0' '\\?\PHYSICALDRIVE1'
Volume locked successfully. (So available for use)
Volume locked successfully. (So available for use)
efi_tryexclusive: fd 556
Volume \\?\Volume{2eae64dc-e1eb-11f0-b09f-00109b310ad4} is on PHYSICALDRIVE0
  Locked.
  Dismount: 1
Volume \\?\Volume{6ab70489-ebb8-11f0-b0a2-00109b310ad4} is on PHYSICALDRIVE0
  Locked.
  Dismount: 1
Volume \\?\Volume{2eae6551-e1eb-11f0-b09f-00109b310ad4} is on PHYSICALDRIVE0
  Locked.
  Dismount: 1
Volume \\?\Volume{187a1d70-e364-11f0-b0a1-00109b310acc} is on PHYSICALDRIVE0
  Locked.
  Dismount: 1
Volume \\?\Volume{2eae6536-e1eb-11f0-b09f-00109b310ad4} is on PHYSICALDRIVE0
  Locked.
  Dismount: 1
Volume \\?\Volume{187a2e9b-e364-11f0-b0a1-00109b310acc} is on PHYSICALDRIVE0
  Locked.
  Dismount: 1
Volume \\?\Volume{2eae653f-e1eb-11f0-b09f-00109b310ad4} is on PHYSICALDRIVE0
  Locked.
  Dismount: 1
Volume \\?\Volume{2eae6547-e1eb-11f0-b09f-00109b310ad4} is on PHYSICALDRIVE0
  Locked.
  Dismount: 1
efi_tryexclusive: trying to offline disk
efi_tryexclusive: trying for exclusive access
efi_tryexclusive: success. fd is 712
efi_write telling Windows about it...
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-0000577600004cdb'
    part 1:  offset 0:    len 0:    tag: 0    name: ''
    part 2:  offset 0:    len 0:    tag: 0    name: ''
    part 3:  offset 0:    len 0:    tag: 0    name: ''
    part 4:  offset 0:    len 0:    tag: 0    name: ''
    part 5:  offset 0:    len 0:    tag: 0    name: ''
    part 6:  offset 0:    len 0:    tag: 0    name: ''
    part 7:  offset 0:    len 0:    tag: 0    name: ''
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
    part 9:  offset 0:    len 0:    tag: 0    name: ''
    part 10:  offset 0:    len 0:    tag: 0    name: ''
    part 11:  offset 0:    len 0:    tag: 0    name: ''
    part 12:  offset 0:    len 0:    tag: 0    name: ''
zpool_label_disk: trying to online disk
working on dev '#1048576#10000820862976#\\?\PHYSICALDRIVE0'
setting path here '/dev/physicaldrive0'
setting physpath here '#1048576#10000820862976#\\?\PHYSICALDRIVE0'
efi_tryexclusive: fd 712
efi_tryexclusive: trying to offline disk
efi_tryexclusive: trying for exclusive access
efi_tryexclusive: success. fd is 656
efi_write telling Windows about it...
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-00001c220000149b'
    part 1:  offset 0:    len 0:    tag: 0    name: ''
    part 2:  offset 0:    len 0:    tag: 0    name: ''
    part 3:  offset 0:    len 0:    tag: 0    name: ''
    part 4:  offset 0:    len 0:    tag: 0    name: ''
    part 5:  offset 0:    len 0:    tag: 0    name: ''
    part 6:  offset 0:    len 0:    tag: 0    name: ''
    part 7:  offset 0:    len 0:    tag: 0    name: ''
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
    part 9:  offset 0:    len 0:    tag: 0    name: ''
    part 10:  offset 0:    len 0:    tag: 0    name: ''
    part 11:  offset 0:    len 0:    tag: 0    name: ''
    part 12:  offset 0:    len 0:    tag: 0    name: ''
zpool_label_disk: trying to online disk
working on dev '#1048576#10000820862976#\\?\PHYSICALDRIVE1'
setting path here '/dev/physicaldrive1'
setting physpath here '#1048576#10000820862976#\\?\PHYSICALDRIVE1'
sending mountpoint: '\??\?:'
cannot mount 'BackupOpenZFS': Unknown error


PS C:\Users\Administrator> zfs set driveletter=on BackupOpenZFS
PS C:\Users\Administrator> zpool export BackupOpenZFS
PS C:\Users\Administrator> zpool import BackupOpenZFS
path '\\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&1f75b9a7&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive4'
read partitions ok 2
    gpt 0: type 620d94d980 off 0x100000 len 0x1dcee100000
    gpt 1: type 620d94d980 off 0x1dcee200000 len 0x800000
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len ee770800:    tag: 4    name: 'zfs-00005e3900000c64'
    part 8:  offset ee771000:    len 4000:    tag: b    name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
    part 0:  offset 800:    len ee770800:    tag: 4    name: 'zfs-00005e3900000c64'
    part 8:  offset ee771000:    len 4000:    tag: b    name: ''
backup 1, efi_nparts 128, and primarynum 128
path '\\?\scsi#disk&ven_nvme&prod_samsung_mzal4256#7&9be320e&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive2'
read partitions ok 4
    gpt 0: type 620d94d980 off 0x100000 len 0x6400000
    gpt 1: type 620d94d980 off 0x6500000 len 0x1000000
    gpt 2: type 620d94d980 off 0x7500000 len 0x3b76400000
    gpt 3: type 620d94d980 off 0x3b7d900000 len 0x20c00000
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 32000:    tag: c    name: 'EFI system partition'
    part 1:  offset 32800:    len 8000:    tag: 10    name: 'Microsoft reserved partition'
    part 2:  offset 3a800:    len 1dbb2000:    tag: 11    name: 'Basic data partition'
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
path '\\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&6d6c043&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive3'
read partitions ok 2
    gpt 0: type 620d94d980 off 0x100000 len 0x1dcee100000
    gpt 1: type 620d94d980 off 0x1dcee200000 len 0x800000
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len ee770800:    tag: 4    name: 'zfs-00004969000036f5'
    part 8:  offset ee771000:    len 4000:    tag: b    name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
    part 0:  offset 800:    len ee770800:    tag: 4    name: 'zfs-00004969000036f5'
    part 8:  offset ee771000:    len 4000:    tag: b    name: ''
backup 1, efi_nparts 128, and primarynum 128
path '\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive0'
read partitions ok 0
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-0000577600004cdb'
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-0000577600004cdb'
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
backup 1, efi_nparts 128, and primarynum 128
path '\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&020000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive1'
read partitions ok 0
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-00001c220000149b'
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-00001c220000149b'
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
backup 1, efi_nparts 128, and primarynum 128
working on dev '#1048576#10000820862976#\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
setting path here '/dev/physicaldrive0'
setting physpath here '#1048576#10000820862976#\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
working on dev '#1048576#10000820862976#\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&020000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
setting path here '/dev/physicaldrive1'
setting physpath here '#1048576#10000820862976#\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&020000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
sending mountpoint: '\??\?:'
cannot mount 'BackupOpenZFS': Unknown error
Import was successful, but unable to mount some datasets


PS C:\Users\Administrator> zfs set driveletter=E BackupOpenZFS
PS C:\Users\Administrator> zpool export BackupOpenZFS
PS C:\Users\Administrator> zpool import BackupOpenZFS
path '\\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&1f75b9a7&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive4'
read partitions ok 2
    gpt 0: type d58dbbd970 off 0x100000 len 0x1dcee100000
    gpt 1: type d58dbbd970 off 0x1dcee200000 len 0x800000
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len ee770800:    tag: 4    name: 'zfs-00005e3900000c64'
    part 8:  offset ee771000:    len 4000:    tag: b    name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
    part 0:  offset 800:    len ee770800:    tag: 4    name: 'zfs-00005e3900000c64'
    part 8:  offset ee771000:    len 4000:    tag: b    name: ''
backup 1, efi_nparts 128, and primarynum 128
path '\\?\scsi#disk&ven_nvme&prod_samsung_mzal4256#7&9be320e&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive2'
read partitions ok 4
    gpt 0: type d58dbbd970 off 0x100000 len 0x6400000
    gpt 1: type d58dbbd970 off 0x6500000 len 0x1000000
    gpt 2: type d58dbbd970 off 0x7500000 len 0x3b76400000
    gpt 3: type d58dbbd970 off 0x3b7d900000 len 0x20c00000
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 32000:    tag: c    name: 'EFI system partition'
    part 1:  offset 32800:    len 8000:    tag: 10    name: 'Microsoft reserved partition'
    part 2:  offset 3a800:    len 1dbb2000:    tag: 11    name: 'Basic data partition'
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
path '\\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&6d6c043&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive3'
read partitions ok 2
    gpt 0: type d58dbbd970 off 0x100000 len 0x1dcee100000
    gpt 1: type d58dbbd970 off 0x1dcee200000 len 0x800000
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len ee770800:    tag: 4    name: 'zfs-00004969000036f5'
    part 8:  offset ee771000:    len 4000:    tag: b    name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
    part 0:  offset 800:    len ee770800:    tag: 4    name: 'zfs-00004969000036f5'
    part 8:  offset ee771000:    len 4000:    tag: b    name: ''
backup 1, efi_nparts 128, and primarynum 128
path '\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive0'
read partitions ok 0
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-0000577600004cdb'
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-0000577600004cdb'
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
backup 1, efi_nparts 128, and primarynum 128
path '\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&020000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
 and '\\?\PhysicalDrive1'
read partitions ok 0
asking libefi to read primary label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-00001c220000149b'
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
    part 0:  offset 800:    len 48c3fb000:    tag: 4    name: 'zfs-00001c220000149b'
    part 8:  offset 48c3fb800:    len 4000:    tag: b    name: ''
backup 1, efi_nparts 128, and primarynum 128
working on dev '#1048576#10000820862976#\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
setting path here '/dev/physicaldrive0'
setting physpath here '#1048576#10000820862976#\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
working on dev '#1048576#10000820862976#\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&020000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
setting path here '/dev/physicaldrive1'
setting physpath here '#1048576#10000820862976#\\?\scsi#disk&ven_wdc&prod_wd100efax-68lhpn#5&33814fd6&0&020000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
sending mountpoint: '\??\e:'
PS C:\Users\Administrator> 

[besterino]

Update: the automatic mounting of a vhdx file after doubleclick on the file or through the context menu also fails. Have to mount and set the drive letter (or mount path) through disk management.

Is it only my machine or has anyone else experienced the issue as well?

[lundman]

So, intermitted "cannot mount 'BackupOpenZFS': Unknown error" ? Maybe a race of some kind, the easiest to try is probably

zfs unmount BackupOpenZFS
zfs mount BackupOpenZFS

and see if it works. We might need to grab cbuf to get a hint as to what actually goes wrong.

[besterino]

unmount / mount did not help. Neither did pool export, pulling the drives, putting them back in, pool import --> again not mounted automatically.

[sskras]

If there is a race condition, maybe you should run this pair in a loop?

zfs unmount BackupOpenZFS
zfs mount BackupOpenZFS

[besterino]

You mean with both pools or just the problematic one?

[sskras]

I certainly meant the problematic pool, IOW "let's start small".

[besterino]

Sorry, it took me a while.

Created a third pool with other drives, same problem:

`C:\Users\Administrator>zpool.exe create -O casesensitivity=insensitive -O normalization=formD -O compression=lz4 -O atime=off -o ashift=12 TestPool mirror \?\PHYSICALDRIVE1 \?\PHYSICALDRIVE2
Volume locked successfully. (So available for use)
Volume locked successfully. (So available for use)
efi_tryexclusive: fd 552
efi_tryexclusive: trying to offline disk
efi_tryexclusive: trying for exclusive access
efi_tryexclusive: success. fd is 628
efi_write telling Windows about it...
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-00007211000070aa'
part 1: offset 0: len 0: tag: 0 name: ''
part 2: offset 0: len 0: tag: 0 name: ''
part 3: offset 0: len 0: tag: 0 name: ''
part 4: offset 0: len 0: tag: 0 name: ''
part 5: offset 0: len 0: tag: 0 name: ''
part 6: offset 0: len 0: tag: 0 name: ''
part 7: offset 0: len 0: tag: 0 name: ''
part 8: offset ee771000: len 4000: tag: b name: ''
part 9: offset 0: len 0: tag: 0 name: ''
part 10: offset 0: len 0: tag: 0 name: ''
part 11: offset 0: len 0: tag: 0 name: ''
part 12: offset 0: len 0: tag: 0 name: ''
zpool_label_disk: trying to online disk
working on dev '#1048576#2048398458880#\?\PHYSICALDRIVE1'
setting path here '/dev/physicaldrive1'
setting physpath here '#1048576#2048398458880#\?\PHYSICALDRIVE1'
efi_tryexclusive: fd 544
efi_tryexclusive: trying to offline disk
efi_tryexclusive: trying for exclusive access
efi_tryexclusive: success. fd is 572
efi_write telling Windows about it...
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-00000a30000020df'
part 1: offset 0: len 0: tag: 0 name: ''
part 2: offset 0: len 0: tag: 0 name: ''
part 3: offset 0: len 0: tag: 0 name: ''
part 4: offset 0: len 0: tag: 0 name: ''
part 5: offset 0: len 0: tag: 0 name: ''
part 6: offset 0: len 0: tag: 0 name: ''
part 7: offset 0: len 0: tag: 0 name: ''
part 8: offset ee771000: len 4000: tag: b name: ''
part 9: offset 0: len 0: tag: 0 name: ''
part 10: offset 0: len 0: tag: 0 name: ''
part 11: offset 0: len 0: tag: 0 name: ''
part 12: offset 0: len 0: tag: 0 name: ''
zpool_label_disk: trying to online disk
working on dev '#1048576#2048398458880#\?\PHYSICALDRIVE2'
setting path here '/dev/physicaldrive2'
setting physpath here '#1048576#2048398458880#\?\PHYSICALDRIVE2'
sending mountpoint: '???:'
cannot mount 'TestPool': Unknown error

C:\Users\Administrator>`

Now zpool export/import on TestPool did the trick. Shouldn't make a difference whether I use powershell or CMD, should it?

[besterino]

Something is still weird with mount/unmount.

I created two datasets on TestPool (see above) and assigned each a driveletter (N and S). Unmounted the pool with zfs umount. Pool and both datasets vanished from the explorer accordingly. Mounting the Pool again only brought back the Pool with its driveletter, but not the two datasets. Manually setting the driveletters again didn't help either. After exporting and importing the Pool again, it tried to mount the datasets with driveletters but failed with error.

After reboot, everything was fine again: Pool and both datasets mounted with their respected driveletters.

`C:\Users\Administrator>zfs create TestPool/basic_smbroot
sending mountpoint: '??\E:/basic_smbroot'

C:\Users\Administrator>zfs create TestPool/basic_nfsroot
sending mountpoint: '??\E:/basic_nfsroot'

C:\Users\Administrator>zfs set driveletter=n TestPool/basic_nfsroot
zunmount(TestPool/basic_nfsroot,E:/basic_nfsroot/) running
zunmount(TestPool/basic_nfsroot,E:/basic_nfsroot/) returns 0
sending mountpoint: '??\n:'

C:\Users\Administrator>zfs set driveletter=s TestPool/basic_smbroot
zunmount(TestPool/basic_smbroot,E:/basic_smbroot) running
zunmount(TestPool/basic_smbroot,E:/basic_smbroot) returns 0
sending mountpoint: '??\s:'

C:\Users\Administrator>zfs umount TestPool
zunmount(TestPool/basic_smbroot,S:/) running
zunmount(TestPool/basic_smbroot,S:/) returns 0
zunmount(TestPool/basic_nfsroot,N:/) running
zunmount(TestPool/basic_nfsroot,N:/) returns 0
zunmount(TestPool,E:/) running
zunmount(TestPool,E:/) returns 0

C:\Users\Administrator>zfs mount TestPool
sending mountpoint: '???:'

C:\Users\Administrator>zfs set driveletter=n TestPool/basic_nfsroot

C:\Users\Administrator>zfs set driveletter=s TestPool/basic_smbroot

C:\Users\Administrator>zpool export TestPool
zunmount(TestPool,E:/) running
zunmount(TestPool,E:/) returns 0

C:\Users\Administrator>zpool import TestPool
path '\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&1f75b9a7&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
and '\?\PhysicalDrive4'
read partitions ok 2
gpt 0: type b656afda70 off 0x100000 len 0x1dcee100000
gpt 1: type b656afda70 off 0x1dcee200000 len 0x800000
asking libefi to read primary label
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-00004969000036f5'
part 8: offset ee771000: len 4000: tag: b name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-00004969000036f5'
part 8: offset ee771000: len 4000: tag: b name: ''
backup 1, efi_nparts 128, and primarynum 128
path '\?\scsi#disk&ven_nvme&prod_samsung_mzal4256#7&9be320e&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
and '\?\PhysicalDrive0'
read partitions ok 4
gpt 0: type b656afda70 off 0x100000 len 0x6400000
gpt 1: type b656afda70 off 0x6500000 len 0x1000000
gpt 2: type b656afda70 off 0x7500000 len 0x3b76400000
gpt 3: type b656afda70 off 0x3b7d900000 len 0x20c00000
asking libefi to read primary label
EFI read OK, max partitions 128
part 0: offset 800: len 32000: tag: c name: 'EFI system partition'
part 1: offset 32800: len 8000: tag: 10 name: 'Microsoft reserved partition'
part 2: offset 3a800: len 1dbb2000: tag: 11 name: 'Basic data partition'
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
path '\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&6d6c043&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
and '\?\PhysicalDrive3'
read partitions ok 2
gpt 0: type b656afda70 off 0x100000 len 0x1dcee100000
gpt 1: type b656afda70 off 0x1dcee200000 len 0x800000
asking libefi to read primary label
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-00005e3900000c64'
part 8: offset ee771000: len 4000: tag: b name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-00005e3900000c64'
part 8: offset ee771000: len 4000: tag: b name: ''
backup 1, efi_nparts 128, and primarynum 128
path '\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&36f48df2&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
and '\?\PhysicalDrive1'
read partitions ok 2
gpt 0: type b656afda70 off 0x100000 len 0x1dcee100000
gpt 1: type b656afda70 off 0x1dcee200000 len 0x800000
asking libefi to read primary label
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-00007aa40000273b'
part 8: offset ee771000: len 4000: tag: b name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-00007aa40000273b'
part 8: offset ee771000: len 4000: tag: b name: ''
backup 1, efi_nparts 128, and primarynum 128
path '\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&4045a99&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
and '\?\PhysicalDrive2'
read partitions ok 2
gpt 0: type b656afda70 off 0x100000 len 0x1dcee100000
gpt 1: type b656afda70 off 0x1dcee200000 len 0x800000
asking libefi to read primary label
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-000037a400005f12'
part 8: offset ee771000: len 4000: tag: b name: ''
backup 0, efi_nparts 128, and primarynum 128
asking libefi to read backup label
EFI read OK, max partitions 128
part 0: offset 800: len ee770800: tag: 4 name: 'zfs-000037a400005f12'
part 8: offset ee771000: len 4000: tag: b name: ''
backup 1, efi_nparts 128, and primarynum 128
working on dev '#1048576#2048398458880#\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&36f48df2&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
setting path here '/dev/physicaldrive1'
setting physpath here '#1048576#2048398458880#\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&36f48df2&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
working on dev '#1048576#2048398458880#\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&4045a99&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
setting path here '/dev/physicaldrive2'
setting physpath here '#1048576#2048398458880#\?\scsi#disk&ven_nvme&prod_adata_sx8200pnp#5&4045a99&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'
sending mountpoint: '???:'
sending mountpoint: '??\n:'
sending mountpoint: '??\s:'
cannot mount 'TestPool/basic_nfsroot': Unknown error
cannot mount 'TestPool/basic_smbroot': Unknown error
Import was successful, but unable to mount some datasets
`