Help! Lost a pool after a hardware upgrade. Can't import

Allen_Shull · May 21, 2025, 7:47pm

I’ve lost one of my pools after upgrading the ram in my Fangtooth box. Looks like one of the sata breakout cables from my LSI 2008 (IT mode) was flaky and I replaced it. But when I logged back in after the repair the pool still showed that it was missing all four TOSHIBA_HDWE160. All four drives show up in Disks and pass Manuel SMART tests. I tried disconnecting the pool in the hopes that I could just re-import but still no luck. The second pool of four WD drives connected to the same card is working fine, and I even tried swapping ports on the card to rule out a bad port.

Any help here would be greatly appreciated.

Protopia · May 21, 2025, 8:14pm

Please run the following commands and post the output here from each command separately in its own </> box:

lsblk -bo NAME,LABEL,MAJ:MIN,TRAN,ROTA,ZONED,VENDOR,MODEL,SERIAL,PARTUUID,START,SIZE,PARTTYPENAME
sudo zpool status -v
sudo zpool import
lspci
sudo sas2flash -list
sudo sas3flash -list
sudo storcli show all

Thanks.

Allen_Shull · May 21, 2025, 8:24pm

truenas_admin@truenas[~]$ lsblk -bo NAME,LABEL,MAJ:MIN,TRAN,ROTA,ZONED,VENDOR,MODEL,SERIAL,PARTUUID,START,SIZE,PARTTYPENAME
NAME        LABEL           MAJ:MIN TRAN   ROTA ZONED VENDOR   MODEL                     SERIAL          PARTUUID                               START           SIZE PARTTYPENAME
sda                           8:0   sas       1 none  ATA      TOSHIBA HDWE160           17VTK0CPF56D                                                  6001175126016 
sdb                           8:16  sas       1 none  ATA      TOSHIBA HDWE160           2731KDW0F56D                                                  6001175126016 
sdc                           8:32  sas       1 none  ATA      TOSHIBA HDWE160           17VTK0COF56D                                                  6001175126016 
sdd                           8:48  sas       1 none  ATA      TOSHIBA HDWE160           17P9K7XQF56D                                                  6001175126016 
sde                           8:64  sas       1 none  ATA      ST16000NT001-3LV101       ZRS237AB                                                     16000900661248 
└─sde1      Bulk Storage      8:65            1 none                                                     d560e69a-7c18-4692-a19b-15402ec6d775    2048 15998753177600 Solaris /usr & Apple ZFS
sdf                           8:80  sas       1 none  ATA      ST16000NT001-3MC101       ZYD455XJ                                                     16000900661248 
└─sdf1      Bulk Storage      8:81            1 none                                                     856f0431-3c58-47c2-9a0d-fef1c9558495    2048 15998753177600 Solaris /usr & Apple ZFS
sdg                           8:96  sas       1 none  ATA      ST16000NT001-3LV101       ZRS23QE7                                                     16000900661248 
└─sdg1      Bulk Storage      8:97            1 none                                                     60a5f756-d1cc-46c4-873a-11b519f04fa8    2048 15998753177600 Solaris /usr & Apple ZFS
sdh                           8:112 sas       1 none  ATA      ST16000NT001-3LV101       ZRS20APE                                                     16000900661248 
└─sdh1      Bulk Storage      8:113           1 none                                                     ed0b247f-00d6-45d2-850e-0c2ae22115f6    2048 15998753177600 Solaris /usr & Apple ZFS
sdi                           8:128 sata      0 none  ATA      Samsung SSD 870 EVO 500GB S62ANJ0R120160Y                                                500107862016 
sdj                           8:144 usb       1 none  Seagate  Backup+ Hub BK            NA8TFB1M                                                      8001563221504 
└─sdj1      External_Backup   8:145           1 none                                                     e9235ce8-d58b-480e-ae7c-b0c5fde5630b    2048  7999415386112 Solaris /usr & Apple ZFS
nvme0n1                     259:0   nvme      0 none           CT1000T500SSD8            241648BD8DA9                                                  1000204886016 
├─nvme0n1p1                 259:1   nvme      0 none                                                     dab92ff0-9df7-4913-a873-46ab9f44c0d1    4096        1048576 BIOS boot
├─nvme0n1p2 EFI             259:2   nvme      0 none                                                     49dcb71a-5bc7-4a93-a39e-1fe66ce16152    6144      536870912 EFI System
└─nvme0n1p3 boot-pool       259:3   nvme      0 none                                                     cf48614d-5656-4be3-9e3b-fedcfc368347 1054720   999664852480 Solaris /usr & Apple ZFS
nvme2n1                     259:4   nvme      0 none           Samsung SSD 980 PRO 2TB   S6B0NL0T708330Y                                               2000398934016 
└─nvme2n1p1 Fast_Storage    259:5   nvme      0 none                                                     da2a0cfb-8661-432d-8782-3e3c2afa3081    2048  1998251360256 Solaris /usr & Apple ZFS
nvme1n1                     259:6   nvme      0 none           Samsung SSD 980 PRO 2TB   S6B0NG0R101967J                                               2000398934016 
└─nvme1n1p1 Fast_Storage    259:7   nvme      0 none                                                     e465a3b0-1d59-45da-a973-49f40bb162fb    2048  1998251360256 Solaris /usr & Apple ZFS
truenas_admin@truenas[~]$

  pool: Bulk Storage
 state: ONLINE
  scan: scrub repaired 0B in 00:01:31 with 0 errors on Sun May  4 00:01:33 2025
config:

        NAME                                      STATE     READ WRITE CKSUM
        Bulk Storage                              ONLINE       0     0     0
          raidz1-0                                ONLINE       0     0     0
            ed0b247f-00d6-45d2-850e-0c2ae22115f6  ONLINE       0     0     0
            856f0431-3c58-47c2-9a0d-fef1c9558495  ONLINE       0     0     0
            60a5f756-d1cc-46c4-873a-11b519f04fa8  ONLINE       0     0     0
            d560e69a-7c18-4692-a19b-15402ec6d775  ONLINE       0     0     0

errors: No known data errors

  pool: Fast_Storage
 state: ONLINE
config:

        NAME                                      STATE     READ WRITE CKSUM
        Fast_Storage                              ONLINE       0     0     0
          mirror-0                                ONLINE       0     0     0
            e465a3b0-1d59-45da-a973-49f40bb162fb  ONLINE       0     0     0
            da2a0cfb-8661-432d-8782-3e3c2afa3081  ONLINE       0     0     0

errors: No known data errors

  pool: boot-pool
 state: ONLINE
  scan: scrub repaired 0B in 00:00:09 with 0 errors on Tue May 20 03:45:19 2025
config:

        NAME         STATE     READ WRITE CKSUM
        boot-pool    ONLINE       0     0     0
          nvme0n1p3  ONLINE       0     0     0

errors: No known data errors```

truenas_admin@truenas[~]$ sudo zpool import
no pools available to import

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:05.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 7
01:00.0 VGA compatible controller: NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2)
01:00.1 Audio device: NVIDIA Corporation GM107 High Definition Audio Controller [GeForce 940MX] (rev a1)
02:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
03:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
03:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Starship USB 3.0 Host Controller
20:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
20:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
20:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
20:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
20:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
20:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
20:03.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
20:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
20:05.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
20:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
20:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
20:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
20:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
21:00.0 Non-Volatile memory controller: Micron/Crucial Technology T500 NVMe PCIe SSD (rev 01)
22:00.0 USB controller: ASMedia Technology Inc. ASM3242 USB 3.2 Host Controller
23:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
24:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
24:00.1 Encryption controller: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Cryptographic Coprocessor PSPCPP
24:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Starship USB 3.0 Host Controller
24:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller
40:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
40:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
40:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
40:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
40:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
40:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
40:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
40:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
40:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
40:05.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
40:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
40:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
40:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
40:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
41:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse Switch Upstream
42:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
42:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
42:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
42:03.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
42:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
42:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
42:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
42:08.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
42:09.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
42:0a.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
43:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller PM9A1/PM9A3/980PRO
44:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller PM9A1/PM9A3/980PRO
46:00.0 Ethernet controller: Aquantia Corp. AQC107 NBase-T/IEEE 802.3bz Ethernet Controller [AQtion] (rev 02)
47:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA Controller (rev 02)
48:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA Controller (rev 02)
49:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
4a:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
4a:00.1 USB controller: Advanced Micro Devices, Inc. [AMD] Matisse USB 3.0 Host Controller
4a:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Matisse USB 3.0 Host Controller
4b:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
4c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
4d:00.0 Ethernet controller: Intel Corporation Ethernet Controller E810-XXV for SFP (rev 02)
4d:00.1 Ethernet controller: Intel Corporation Ethernet Controller E810-XXV for SFP (rev 02)
4f:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon] (rev 03)
50:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
51:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
60:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
60:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
60:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
60:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
60:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
60:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
60:05.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
60:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
60:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
60:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
60:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
61:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
62:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP

LSI Corporation SAS2 Flash Utility
Version 20.00.00.00 (2014.09.18)
Copyright (c) 2008-2014 LSI Corporation. All rights reserved

    Adapter Selected is a LSI SAS: SAS2008(B2)   

    Controller Number              : 0
    Controller                     : SAS2008(B2)   
    PCI Address                    : 00:4f:00:00
    SAS Address                    : 500605b-0-02c8-aa76
    NVDATA Version (Default)       : 14.00.00.07
    NVDATA Version (Persistent)    : 14.00.00.07
    Firmware Product ID            : 0x2213 (IT)
    Firmware Version               : 20.00.00.00
    NVDATA Vendor                  : LSI
    NVDATA Product ID              : SAS9200-8e
    BIOS Version                   : 07.39.00.00
    UEFI BSD Version               : N/A
    FCODE Version                  : N/A
    Board Name                     : SAS9200-8e
    Board Assembly                 : N/A
    Board Tracer Number            : N/A

    Finished Processing Commands Successfully.
    Exiting SAS2Flash.```

Avago Technologies SAS3 Flash Utility
Version 16.00.00.00 (2017.05.02) 
Copyright 2008-2017 Avago Technologies. All rights reserved.

        No Avago SAS adapters found! Limited Command Set Available!
        ERROR: Command Not allowed without an adapter!
        ERROR: Couldn't Create Command -list
        Exiting Program.

CLI Version = 007.2807.0000.0000 Dec 22, 2023
Operating system = Linux 6.12.15-production+truenas
Status Code = 0
Status = Success
Description = None

Number of Controllers = 0
Host Name = truenas
Operating System  = Linux 6.12.15-production+truenas
StoreLib IT Version = 07.2900.0200.0100

Protopia · May 22, 2025, 11:13am

That is weird. As you say sda-sdd are showing as attached, however there are no ZFS partitions showing on these disks.

First we need to check that the partition table is not corrupted. Please run the following as post the results:

sudo gdisk -l /dev/sda

Thx.

Allen_Shull · May 22, 2025, 4:04pm

I think we’ve found the issue.

GPT fdisk (gdisk) version 1.0.9

Caution! After loading partitions, the CRC doesn't check out!
Warning! Main partition table CRC mismatch! Loaded backup partition table
instead of main partition table!

Warning! One or more CRCs don't match. You should repair the disk!
Main header: OK
Backup header: OK
Main partition table: ERROR
Backup partition table: OK

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: damaged

****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
****************************************************************************
Disk /dev/sda: 11721045168 sectors, 5.5 TiB
Model: TOSHIBA HDWE160 
Sector size (logical/physical): 512/4096 bytes
Disk identifier (GUID): A3E25A20-06FD-11E7-A271-002590023062
Partition table holds up to 128 entries
Main partition table begins at sector 8 and ends at sector 39
First usable sector is 40, last usable sector is 11721045134
Partitions will be aligned on 2048-sector boundaries
Total free space is 5223 sectors (2.5 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            4096         4198399   2.0 GiB     A502  
   2         4198400     11721043967   5.5 TiB     A504

Allen_Shull · May 22, 2025, 5:47pm

It looks like all of the drives from the missing pool share the same error. Can I attempt a repair of the partition records without risking permanent data loss?

Protopia · May 22, 2025, 8:54pm

Well - it’s a start perhaps. And A502 is an expected 2GB swap file, and A504 is FreeBSD openZFS - so the partition details look correct too.

You can use sudo gdisk /dev/sdX for sda through sdd and use the backup GPT partition table and write it to the primary.

Once you have done this you will have restored the partition details. Then we can see if the pool is importable with one of the following in priority sequence:

The UI
sudo zpool import poolname
sudo zpool import -f poolname

If none of these work, then there are some more steps we can try.

Allen_Shull · May 22, 2025, 11:32pm

Thank you so much for your help, I’m currently creating 1:1 images of each of the drives. Something I probably should have started with. That’s taking a very long time, but once that is completed I’ll give that a shot and report back.

Allen_Shull · May 24, 2025, 4:23pm

Imaging complete, that took a while. I’ve restored the backup GPT on each disk but this is what I’m getting now. With or without -f modifier.

truenas_admin@truenas[~]$ sudo zpool import Primary
cannot import 'Primary': a pool with that name already exists
use the form 'zpool import <pool | id> <newpool>' to give it a new name

Zpool status gives me this:

 pool: Primary
 state: ONLINE
  scan: scrub repaired 0B in 05:46:04 with 0 errors on Mon May  5 17:30:07 2025
config:

        NAME                                      STATE     READ WRITE CKSUM
        Primary                                   ONLINE       0     0     0
          raidz1-0                                ONLINE       0     0     0
            a3b7c634-06fd-11e7-a271-002590023062  ONLINE       0     0     0
            a3d4a107-06fd-11e7-a271-002590023062  ONLINE       0     0     0
            a4307e7b-06fd-11e7-a271-002590023062  ONLINE       0     0     0
            a44062d4-06fd-11e7-a271-002590023062  ONLINE       0     0     0

errors: No known data errors

Which looks promising but the pool is still inaccessible.

Allen_Shull · May 24, 2025, 4:27pm

I’m not an expert on this but this leads me to believe its just not mounted?

NAME           SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP    HEALTH  ALTROOT
Bulk Storage  58.2T  25.4T  32.7T        -         -     0%    43%  1.00x    ONLINE  /mnt
Fast_Storage  1.81T  1.27M  1.81T        -         -     0%     0%  1.00x    ONLINE  /mnt
Primary       21.8T  12.3T  9.45T        -         -     4%    56%  1.00x    ONLINE  -
boot-pool      928G  2.83G   925G        -         -     0%     0%  1.00x    ONLINE  -

etorix · May 24, 2025, 4:27pm

How is it “inaccessible”? Could it be that it is mounted in a wrong place because you didn’t use -R /mnt ?

Allen_Shull · May 24, 2025, 4:36pm

That appears to be the case. But I didn’t (successfully) run an import. Once the GPT was repaired the pool is back. It just doesn’t have a mount point and it isn’t showing up on the GUI. Should export the pool from shell and then try an import?

Protopia · May 24, 2025, 4:39pm

sudo zpool export Primary
sudo zpool import -R /mnt Primary

Allen_Shull · May 24, 2025, 4:44pm

Thank you so much Protopia! I’m back up and running again. If you have a buymeacoffee.com account let me know! I think I’ll start setting up that cloud sync I’ve been procrastinating…