Backup boot flash drive

[Eric2021]

Please bear with me as i am a noob with both Unix systems & TrueNAS.
I recently installed TrueNAS-12.0-U3 on a HP ProDesk 400 G3 MT with 16GB RAM, 3*500GB HDD, and booting from a 32GB flash drive
I plan to use this as a simple NAS storage mapped from Windows systems.
While some posts have discouraged booting from flash drive, i feel that that is best for me. How can i create a USB boot mirror as a backup in case the primary boot flash drive fail?
It can either be 2 flash drives plugged in or separately kept as spare.
Thanks.

 

[Ericloewe]

Nothing inherently wrong with that, but if you can fit in an SSD, it's a much better option for really minimal extra cost these days.

How can i create a USB boot mirror as a backup in case the primary boot flash drive fail?

During the install, mark both devices to be installed to. After the install, there should be an option to add a mirror, check the manual.

 

[Eric2021]

Nothing inherently wrong with that, but if you can fit in an SSD, it's a much better option for really minimal extra cost these days.


During the install, mark both devices to be installed to. After the install, there should be an option to add a mirror, check the manual.

Thanks. As it is a new install, i reinstalled it with 2 usb selected. I then tested it by rebooting it a few times removing either one of the usb drive.
All is working fine.