Pool creation problem

[edco]

Hello everyone,

I'm a total beginner here. I experimented with Truenas Scale a bit in a VM and decided to install it on my GEEKOM A5 AMD Ryzen 7, 32GB RAM.

It has:

• one 2TB SSD (Crucial P3 Plus M.2)
• one 2TB Samsung 870 QVO SATA III.

As I did successfully in the VM tests, the plan was to have a 2TB mirror pool.

During the installation, I checked the Crucial 2TB SSD and left the Samsung unchecked.

Now, when I want to create a pool, I have no idea what to do here. It won't let me continue due to the error: "At least 1 data VDEV is required".

Can you please help me set this up?

I really appreciate any help you can provide.

 

[sretalla]

So you already have a pool with one of the SSDs in it?

Now you want to add the second SSD as a mirror to the first one? (but you're using the create a new pool option for that?... I guess this is where the problem is happening)

 

[chuck32]

Seems like @sretalla is right because no data Vdev is present, additionally your screen is for a log Vdev, not data Vdev.

To add a VDEV to a pool: Click Manage Devices on the Topology widget to open the Devices screen. Click Add VDEV on the Devices screen to open the Add Vdevs to Pool screen.

Documentation

 

[edco]

Thank you for your replies.

But I haven't created a pool. This is right after the installation.

Is it possible that TN used the first Crucial SSD as a "boot-pool" and now I can't use it for anything else?

What would be the solution?

 

[sretalla]

Is it possible that TN used the first Crucial SSD as a "boot-pool" and now I can't use it for anything else?

Yes, that's what happened.

I have to waste an entire drive just for booting?

This resource was originally created by user: jgreco on the TrueNAS Community Forums Archive. Please DM this account or comment in this thread to claim it. With the advent of TrueNAS Scale, we seem to be getting a large number of people from the Linux community who are not quite grasping what...

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[edco]

Thank you.

Is possible to resolve this without a new installation? Anyone know a tutorial for this?

 

[sretalla]

Is possible to resolve this

Depends what you mean by "resolve"...

Can you use space on the boot pool drives for a data pool? Not while using the product in a supported way... but... https://www.truenas.com/community/t...-no-usb-install-easy-config-migration.102641/

If you want to re-think your approach and stay supported, you can either pick up an external USB SSD/NVME drive or find another way to attach a small SSD to use as the boot pool, install to that and then use your (probably poorly selected pair of) drives as a mirror (your NVME will have quite a different write endurance to the QVO).

Possibly a better way to use your drives together would be to replicate from the NVME to the QVO, so you have a second copy of all your data, updated regularly, but not a live mirror (which will kill your QVO much faster than your NVME)

 

[edco]

I have a 512GB NVME M.2 SSD somewhere, so I'll get a USB Adapter/Case for it and use it as a boot drive.

Possibly a better way to use your drives together would be to replicate from the NVME to the QVO, so you have a second copy of all your data, updated regularly, but not a live mirror (which will kill your QVO much faster than your NVME)

Thank you for this, that's how I'll set it up. So simply use the TN "Replication Task Wizard"? Create two different pools, that copy the datasets from one to the other?

 

[sretalla]

So simply use the TN "Replication Task Wizard"? Create two different pools, that copy the datasets from one to the other?

That's pretty much it... depending on how you want it to run, you may selectively replicate only some things or some things more often than others, so more than one replication task would get the job done.

You don't really need to replicate the system dataset (it's mostly things like logs and reporting data).

 

[edco]

Thank you for your help and patience.