I can’t tell what your experience level is with ZFS so I am posting the following. You will have to consider your performance, storage expansion plans and decide on pool and VDEV layouts.
BASICS
iX Systems pool layout whitepaper
https://www.truenas.com/solution-guides/#TrueNAS-PDF-zfs-storage-pool-layout/11/
Special VDEV (sVDEV) Planning, Sizing, and Considerations
This resource was originally sourced from a Suggestion thread here:
https://forums.truenas.com/t/suggestion-better-svdev-planning-oversight-tools-in-gui/394/
Why consider a sVDEV?
A sVDEV has the potential to significantly speed up the operations of a spinning hard-drive (HDD) pool. One of it’s functions is to hold metadata (ZFS produces a lot of it). The other function is to make small blocks available for file storage. These small blocks are supposed to store data that is smaller than a cut…
And a link to the Hardware Guide on the old forums. You can download a PDF using the yellow Download button on the upper right side.
This is the latest edition of the FreeNAS Community hardware recommendations guide.
The current major version is R2, dated January 2021, with the last minor update on 2021-01-24.
The format has moved away from the forum post form factor, to...
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