Stuck in restoring "Apps" pool after failed replace attempt

Apps and Virtualization
1

System hardware:

  • CPU: Intel Core i3-14100
  • Motherboard: ASUS PRIME H610I-PLUS D4-CSM with Intel H610 chipset
  • 32GB G.Skill Ripjaws V F4-3200C16D-32GVK
  • Boot device: 256GB M.2 NVMe Samsung PM9C1
  • Apps pool: mirror 2x 256GB Patriot 210 (tried to replace by mirror 2x WD Red SA500 2,5" 500GB)
  • Storage pool: 2x mirror 14TB HGST DC HC530 (SATA 6Gb/s, 512e SE)
  • NIC QNAP QXG-2G2T-I225 Dual Intel I225LM

Software:

  • TrueNAS Community Edition 25.10.0.1 - Goldeye
  • Tailscale
  • Nginx Proxy Manager
  • Nextcloud
  • glances
 lsblk                                         
NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda           8:0    0 238.5G  0 disk 
sdb           8:16   0 238.5G  0 disk 
sdc           8:32   0  12.7T  0 disk 
└─sdc1        8:33   0  12.7T  0 part 
sdd           8:32   0  12.7T  0 disk 
└─sdd1        8:33   0  12.7T  0 part 
zd0         230:0    0    60G  0 disk 
nvme0n1     259:0    0 238.5G  0 disk 
├─nvme0n1p1 259:1    0     1M  0 part 
├─nvme0n1p2 259:2    0   512M  0 part 
└─nvme0n1p3 259:3    0   238G  0 part

Furthermore, zpool status shows the storage pool and the boot pool, it does no longer show the “apps” pool.

Hi all,

For now irrelevant reasons I installed a mirror of 2 new Patriot P210 SSD’s of 256GB and used it as my “Apps” pool. I was unsatisfied with the vast incline of checksum errors emerging within mere months, and so I decided to replace them with new 500GB WD SSD’s.

Replacement initially looked successful however, I found out I clearly made a mistake and ended up with a weird VDEV that was lacking redundancy but was not fully striped either. I executed a replication task of the data from the "apps"pool, that was still in tact, to the storage pool.

I recreated a VDEV of the new SSD’s, now correctly in mirror. I ran the replication task to the new “apps” pool but was not able to get the applications up and running. Most of them crashed and didn’t seem to find any of the restored data. I tried to find the “Apps” pool snapshots but could not find them anymore.

Then finally my plan was to reinstall the old SSD’s and to try to replace them, one by one in a correct manner but I end up with below screenshot and am unable to reconfigure the original “apps” pool.

Does anyone with more experience have any solid ideas for me how to proceed from here?!

r/truenas - Storage dashboard of broken "apps" pool|750xauto

Oh, and Apps were installed from the apps catalog in prepared datasets, not the default hidden .ixsystem datasets