VMware ESXi - Changing Round Robin IOP limit

Get the current setting for each storage device:

for i in `fdisk -l | grep 'Disk /dev/disks/t10' | cut -f4 -d'/' | cut -f1 -d':'`; do esxcli storage nmp psp roundrobin deviceconfig get -d=$i | grep -A 1
 Device:; done

Set all storage devices to 1 IOP per path:

for i in `fdisk -l | grep 'Disk /dev/disks/t10' | cut -f4 -d'/' | cut -f1 -d':'`; do esxcli storage nmp psp roundrobin deviceconfig set -t=iops -I=1 -d=$i; done