I am running Unraid 7 and just want to try different pool configurations for testing and my own learning.

 

I want to create a 2 HDD ZFS striped pool. I understand there's no fault tolerance and won't be putting any important data on it. Just want to do some benchmarking.

 

Every time I try to create a striped pool by assigning 2 slots and 2 drives, and selecting a striped pool, it defaults to a mirror pool and I can't change it.

 

Any way to create the pool and why would the GUI not allow me to do it?

 

Thanks in advance!!!

45 minutes ago, mekelly said:

Every time I try to create a striped pool by assigning 2 slots and 2 drives, and selecting a striped pool, it defaults to a mirror pool and I can't change it.

Can you expand the steps you are doing?

 

It should work like this:

 

• add pool
• assign both devices
• click on first pool device and select zfs and stripe, click apply
• back on main, start the array, format the pool:

 

 

 

 

P.S. if one or both devices were used with zfs before, make sure you click "Erase pool" during step 3

 

JorgeB, that worked, thanks!

 

I think the problem was that both drives had been used as a ZFS mirror and while I was deleting the pool, I never erased it. That seemed to do the trick.

 

Thanks again!

14 minutes ago, JorgeB said:

P.S. if one or both devices were used with zfs before, make sure you click "Erase pool" during step 3

Just wondering but is there any reason Unraid could not automatically do this if needed as part of the format operation (as it would seem to reduce the chance of user error), or is there a good reason for keeping it as an explicit user initiated step

5 minutes ago, itimpi said:

Just wondering but is there any reason Unraid could not automatically

That could erase a pool when users are trying to import a previous pool, if they set the filesystem/layout, and while not needed, they could leave in auto, many users do that, so best to be on the safe side.