Freenas > Truenas - known issues with usb stick ?

[tiberiusQ]

Dear all,

I do run several freenas servers since a while on mirrored zfs usb sticks which runs fine at all - For the umcoming upgrade from Freenas11.3.u5 to Truenas I would like to double check if there are any known issues for that because I think I was reading somewhere that this in not supported anymore ?

Thx and Greets!

 

[sretalla]

this in not supported anymore ?

It's still "supported" (i.e. it works), but is no longer the "recommended" option where SSD is an available alternative due to the write endurance advantages that SSD has over most USB media... The current version and upcoming TrueNAS version do create a lot of writes on the boot media and this has tended to run people into issues much more quickly in recent years than in the more distant past.
If you can, switch to a small/cheap SSD. (do a little research to avoid the controller/3D NAND issues if doing it in 11.3, but those should hopefully be over in 12)

 

[tiberiusQ]

THX

 

[jenksdrummer]

The current version and upcoming TrueNAS version do create a lot of writes on the boot media and this has tended to run people into issues much more quickly in recent years than in the more distant past.

Such as what?

 

[sretalla]

Such as what?

Failed USB boot drives.

 

[jenksdrummer]

Failed USB boot drives.

The current version and upcoming TrueNAS version do create a lot of writes on the boot media

Such as...?

I'm booting off a pair of mirrored 32GB USB nubs, mirrored during install off USB 2.0 ports. Slow as snot to install, slower than I'd like booting up, but, I've not noted anything out of the ordinary. As soon as a data pool is created, swap gets created there, system dataset is the data pool...what gets written to the boot pool?