SOLVED Un-mirror boot drives

[diedrichg]

• FreeNAS 11.0-U2 STABLE
• Supermicro X10SLM-F-O uATX
• Intel G3420
• Kingston 16GB (8GB x 2) ECC w/Hynix DRAM, 1333MHz, 1.5V - KVR1333D3E9SK2/16G
• (4) WD Red 2TB in RaidZ2
• (2) Supermicro SATA DOM boot drive in mirror - SSD-DM016-PHI

I have a pair of 16GB SM SATADOMs as my boot drive in a mirror. My server doesn't live in a mission-critical environment and I can do without the second boot device as I have another use for it - to become the boot device for a ESXi vSphere Hypervisor. The Internet has not been any help except for maybe this reddit thread
https://www.reddit.com/r/freenas/comments/4uj1w1/remove_mirrored_boot_device/

I just wanted to check with you all first to see if it's

1. possible to remove a boot device from a mirror
2. how do I do that?

 

[Artion]

You can simply go in the boot tab, select the disk you want to take away and push the detach button. :)

 

[diedrichg]

You can simply go in the boot tab, select the disk you want to take away and push the detach button. :)

I was concerned that that would put me into a degraded state. I guess not. Thanks!

 

[diedrichg]

You can simply go in the boot tab, select the disk you want to take away and push the detach button. :)

Hmm. I only see "Replace"

 

[Stux]

You can do it quite easily and reliably in the CLI. I forget the exact command. It is on the forum.

 

[danb35]

The command at the CLI would be zpool detach freenas-boot <device>

 

[Stux]

The command at the CLI would be zpool detach freenas-boot <device>

I would generally wipe the device in the GUI after that to clear the boot blocks.

 

[diedrichg]

Thanks, @Stux and @danb35 I really appreciate it!