Howto do Mirror with 4 drives

[Longreen]

Hi, new to Freenas (but not new to storage etc)

Have 4 x 10 TB drives and want to have a miror that should give me around 18 TB space, but the wizzard in 11.2 GUI always shows me 9 TB free like its ignoring 2 of the drives. Read something about creating 2 x mirrors and striping them etc, but dont feel comfortable i do it right then.

Why is there no wizzard in the GUI for 4 x HDD in Mirror (2 x 2) when all other options is represented in the wizzard ?

WHere can I find clear and concise explanation how to use 4 disks in mirror with the new 11.2 GUI without having to read 100 pages first ?

Other question, everyone in these forums seem to look at RaidZ1 as NONO because long rebuild time on large HDD and it could happen You loose the 1 redundant drive during this rebuild, but at same time same people say RAID is absolutely not a backup, so If i make daily backups why then is RaidZ1 so bad ? (i would only loose data since backup from day before in worst case scenario)

 

[Mlovelace]

The Pool Manager in the new UI is dog sh!t, IMHO. I would suggest switching over to the legacy UI and using the volume manager to create your storage pool. I've included a screen shot example of how to achieve the pool design you're after.

 

[Longreen]

Ok..Thx..How do I switch GUI ????

 

[Mlovelace]

Ok..Thx..How do I switch GUI ????

It's on the login screen...

 

[danb35]

Or just do this in the new GUI:

 

[Mlovelace]

Or just do this in the new GUI:
View attachment 27828

You young kids and your newfangled contraptions! Back in my day we had to "Add extra device" instead of this "Add data" garbage.... *mutters something unintelligible*

 

[danb35]

I agree that the old GUI makes this easier, but it's certainly do-able in the new one--and you can directly control which devices are in which vdevs, which is a point in favor of the new GUI.

 

[Longreen]

Or just do this in the new GUI:
View attachment 27828

How do You even get to this point in the new GUI ? where its split in 2 sets on the right hand side ?

 

[danb35]

How do You even get to this point in the new GUI ? where its split in 2 sets on the right hand side ?

Click the "Add Data" button at the bottom.

 

[Chris Moore]

Why?

Click the "Add Data" button at the bottom.

How did anyone come to the conclusion that, "Add Data," should be the button name.
I don't think that is clear.

 

[danb35]

How did anyone come to the conclusion that, "Add Data," should be the button name.

Other adjacent buttons are "add cache" and "add log", so in context, I took the buttons to be meaning the types of vdevs that would be added. My guess was right, but I agree it's not very intuitive.