Hello @slciec ,
Post running esxtop command please use the "u" to switch to latency of Disks and then refresh every 2 Sec and see if the DAVG value is going high.
If the DAVG value goes high on any disk with the u parameter then the issue is from the disk and if that disk is local then use the iLO/iDRAC/KVM to perform the extensive diagnostic check on the disks.
Anagh B
VCIX-DCV6.5, VSAN Specialist
Please mark help full or correct if my answer is use full for you
