Boot degraded

[lmonasterio]

Hi everyone. I installed freenas 9.3 on 3 USB devices.
In "boot satus" i can see:

-freenas-bot
-mirror-0
da1p2
da0p2
da2p2

I want to delete the last usb device because its failing, but i only see the option to replace it. I want to use only 2 USB devices (delete the last one). Can you help me please? Thanks!

The other question is: how can i realize wich phisical USB is the"da2p2"?. All USB sticks are the same brand and model (8GB)...

 

[dlavigne]

You definitely can't from the GUI. While you could try a zpool detach from the CLI, it is probably easier and safer to just reinstall the same version to the desired number of devices.

 

[lmonasterio]

You definitely can't from the GUI. While you could try a zpool detach from the CLI, it is probably easier and safer to just reinstall the same version to the desired number of devices.

Thank you! If i use "zpool detach", how can i realize wich phisical USB is the"da2p2"? Sorry but im new with this. I really appreciate your help

 

[jde]

I also have a three way mirror boot usb. What I did , since the usb is so small, was to color code them with a dot from a paint pen. Then I added them to my system one at a time. After each addition I ran "camcontrol inquiry daX" which gives you the serial number for each usb. I jotted down the serial numbers which correspond to each color coded usb on a slip of paper I left inside the case. If one of the usb drives goes bad, I can run camcontrol inquiry again (since as I understand, da assignments may change on reboot) and identify the offending drive by serial number and color. Seems better that yanking out usb drives in a trial and error fashion to find the bad drive.

 

[lmonasterio]

I also have a three way mirror boot usb. What I did , since the usb is so small, was to color code them with a dot from a paint pen. Then I added them to my system one at a time. After each addition I ran "camcontrol inquiry daX" which gives you the serial number for each usb. I jotted down the serial numbers which correspond to each color coded usb on a slip of paper I left inside the case. If one of the usb drives goes bad, I can run camcontrol inquiry again (since as I understand, da assignments may change on reboot) and identify the offending drive by serial number and color. Seems better that yanking out usb drives in a trial and error fashion to find the bad drive.

Thank you jde! Did you use "replace" option or delete the bad drive with "zpool detach"?

 

[jde]

I haven't had one go bad yet, so I don't have an answer for you.

Is there a reason you don't want to keep it as a three way mirror? USB drives are pretty cheap. Since the boot is a zfs pool in 9.3, seems like you should just follow the directions in the documentation for replacing a failed drive. If you want to ditch the three way mirror, seems like backing up your config file and reinstalling freenas would be easiest.

 

[lmonasterio]

I haven't had one go bad yet, so I don't have an answer for you.

Is there a reason you don't want to keep it as a three way mirror? USB drives are pretty cheap. Since the boot is a zfs pool in 9.3, seems like you should just follow the directions in the documentation for replacing a failed drive. If you want to ditch the three way mirror, seems like backing up your config file and reinstalling freenas would be easiest.

Thank you again jde! What about the data (i have two 1TB drives mirrored) if i reinstall freenas?