Should I install Truenas Scale on an SSD or on an NVME. OR, does it make any difference?

[titust1]

Hi everyone,
I have the choice to install TrueNas Scale on an SSD (500MBps) or on an NVME Gen4 (with Seq. Read speed 4000MB/s, and Seq. Write speed 2000MB/s).
Initially I thought that Truenas is loaded into memory, but it seems to write a lot on the boot disk, and that's why a USB flash drive is not recommended.
What do you guys recommend me to use as a boot disk?
I know NVME is better because it's much faster, but does the boot disk speed really matters for the overall performance of Truenas?

 

[danb35]

It doesn't really make any difference. It's no longer the case (and hasn't been for quite some time--never with SCALE) that the OS is loaded onto a RAMdisk and runs from there (that was true in FreeNAS 9.2 and earlier), but ZFS caching means most of the OS will live in RAM most of the time. But how often are you going to boot the machine?

 

[titust1]

But how often are you going to boot the machine?

Once in a blue moon. So the speed of the boot disk doesn't make any difference...
Thanks, I can use the nvme for something else