djaoifj92i90
Dabbler
- Joined
- Oct 5, 2022
- Messages
- 18
First of all: I know my setup has some big disadvantages - this is only an experimental setup.
But I want to know to understand why my LOG VDEV is not being used
Full setup explanation:
HP Microserver 10Plus with 32 GB ECC
I run TrueNAS Scale on a VM in Proxmox
In Proxmox I create a 8TB HDD mirrored ZFS. I added a 32GB system drive on that ZFS for the TrueNAS VMs operating systen disk
Then I added a 7.5TB data disk on that pool as well.
Installed TrueNAS-SCALE-22.12.3.3
Create a ZPOOL of full size on the data disk (7.5TB virtual disk mounted from proxmox)
Created a SMB share on that
Copied some files onto that SMB share.
Then added a 500GB NVMe drive to the server with a USB enclosure.
Created a single disk zfs pool in proxmox
Put a 50G and 400G virtual disk on it, attached it to the TrueNAS VM. Used the 50GB as ZFS Dedup Table Storage and the 400G Drive as LOG VDEV on the already existent pool.
Now I started copiying 850GB worth of files of all kinds of sizes to the SMB share from my Windows 11 PC.
But looking at zpool iostat, the LOG device is not being filled - and as the copy progress is still quite slow I think the LOG VDEV is not being used at all.
Tried rebooting TrueNAS - nothing changed
Why is the LOG VDEV not being used?
But I want to know to understand why my LOG VDEV is not being used
Full setup explanation:
HP Microserver 10Plus with 32 GB ECC
I run TrueNAS Scale on a VM in Proxmox
In Proxmox I create a 8TB HDD mirrored ZFS. I added a 32GB system drive on that ZFS for the TrueNAS VMs operating systen disk
Then I added a 7.5TB data disk on that pool as well.
Installed TrueNAS-SCALE-22.12.3.3
Create a ZPOOL of full size on the data disk (7.5TB virtual disk mounted from proxmox)
Created a SMB share on that
Copied some files onto that SMB share.
Then added a 500GB NVMe drive to the server with a USB enclosure.
Created a single disk zfs pool in proxmox
Put a 50G and 400G virtual disk on it, attached it to the TrueNAS VM. Used the 50GB as ZFS Dedup Table Storage and the 400G Drive as LOG VDEV on the already existent pool.
Now I started copiying 850GB worth of files of all kinds of sizes to the SMB share from my Windows 11 PC.
But looking at zpool iostat, the LOG device is not being filled - and as the copy progress is still quite slow I think the LOG VDEV is not being used at all.
Tried rebooting TrueNAS - nothing changed
Why is the LOG VDEV not being used?