VMware - Set Round Robin IOPS Limit for all Zadara Devices

When using the Round Robin Path Selection Policy it is necessary, for performance reasons, to change the Round Robin IOPS limit to 1 (default is 1000).  This setting will determine the number of IOPS VMWare will issue before switching to the next available path.

Round Robin IOPS limits are configured on a per-device basis.  To configure the Round Robin IOPS limit of all Zadara Storage devices run the following command on each ESX host.

for i in `esxcli storage nmp device list | grep "Zadara" | cut -d '(' -f2 | cut -d ')' -f1`; do esxcli storage nmp psp roundrobin deviceconfig set --type=iops --iops=1 --device=$i; done 

For more information please see:  https://kb.vmware.com/s/article/2069356 

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