here is my truenas pool 

root@qnap:~# zpool status
  pool: truepool
 state: ONLINE
  scan: scrub repaired 0B in 00:00:01 with 0 errors on Thu Jul  4 14:16:19 2024
config:

        NAME                                      STATE     READ WRITE CKSUM
        truepool                                  ONLINE       0     0     0
          raidz2-0                                ONLINE       0     0     0
            75f1b2bb-ea06-4791-a8d6-71c6ad37fa1d  ONLINE       0     0     0
            8faca14b-95b4-4dbd-a5bd-1e92d434d1f5  ONLINE       0     0     0
            c2bbbe64-badc-4c2a-addc-4ef4bb7f97c4  ONLINE       0     0     0
            3daba285-bbd3-4bac-a336-542d4fe2f087  ONLINE       0     0     0
            d6b7f7e8-4ce1-4ce8-8690-b52a1b2b3d1f  ONLINE       0     0     0
        logs
          mirror-1                                ONLINE       0     0     0
            a311bf25-b15f-43fb-8758-93a58a42f8e1  ONLINE       0     0     0
            a18c4569-bab3-4145-9198-df595d489c4d  ONLINE       0     0     0
        cache
          5b366e6a-2e81-4835-b92f-96770c011290    ONLINE       0     0     0
          188f24c2-a0bd-483b-8e12-0e9fa9573fa2    ONLINE       0     0     0

 

here is my unraid 7 unassigned device

 

 

trying to add the same disk as the pool, but I'm having difficulty to do it 

for example

 

root@qnap:~# gdisk -l /dev/sdf
GPT fdisk (gdisk) version 1.0.10

Found valid GPT with protective MBR; using GPT.
Disk /dev/sdf: 5860533168 sectors, 2.7 TiB
Model: WDC WD30EFRX-68E
Sector size (logical/physical): 512/4096 bytes
Disk identifier (GUID): 27BA38CF-E39D-431C-BA55-75EF7C1B5084
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 5860533134
Partitions will be aligned on 2048-sector boundaries
Total free space is 4972 sectors (2.4 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            4096      5860532224   2.7 TiB     BF01  
root@qnap:~# gdisk -l /dev/sdg
GPT fdisk (gdisk) version 1.0.10

Found valid GPT with protective MBR; using GPT.
Disk /dev/sdg: 7814037168 sectors, 3.6 TiB
Model: WDC WD4005FZBX-0
Sector size (logical/physical): 512/4096 bytes
Disk identifier (GUID): 906E1CD8-58D2-4B91-9AAD-70BCAA34C082
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 7814037134
Partitions will be aligned on 2048-sector boundaries
Total free space is 5740 sectors (2.8 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            4096      7814035456   3.6 TiB     BF01  

the guid isn't really matching the one from zpool import output

 

Any idea how should i proceed as next step? 

don't want to copy the data out to backup disk and import again, as it will take me several days just copy data out 

 

also when i add a pool with fs auto, i cannot add log or cache disk either, are they required when importing pool?

Edited August 8, 20241 yr by ytwytw

Please post the output of:

 

zpool status -LP

 

Here is the result

 

Do I create a new pool with the identical order?

How does the log and cache gonna work?

19 minutes ago, ytwytw said:

Do I create a new pool with the identical order?

No need, make sure the pool has been exported first:

zpool export truepool

Then create a new pool with 9 slots, no subpools, just the main pool, assign all 9 devices, start the array, the pool should correctly imports, including logs and cache, but if it doesn't post the diagnostics.

 

it works!!!!! thanks lots!!!!