Your p1 pool will lose all its data if your LOGS device goes bad. You usually want the LOGS to have at least the redundancy of the main pool. You should have a mirror pair.
EDIT
I thought the LOGS listing was not SLOG.
You also should check your hard drives to make sure they are CMR and not SMR.
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
SMR vs CMR ServeTheHome