Hello everybody, according to the best practices for HP MSA2040 storage with VMware vSphere, HP recommends to set the iops Parameter for a LUN to 1 instead of 1000, when using Round Robin as Path Selection Policy.
Changing iops=1 with the following command under ESXi 5.5 Update 2 with ...
esxcli storage nmp psp roundrobin deviceconfig set --type=iops --iops=1 --device naa.xxxxxxxxxxxxxxxxxxx
... results in the following output for a device ...
Path Selection Policy Device Config: {policy=iops,iops=1,bytes=10485760, ...}
Before setting iops to 1, the output was {policy=rr,iops=1000, ...}
Now, after setting iops to 1, the output is {policy=iops,iops=1, ...}
Do I make mistakes with the esxcli command or is the policy name always changed from 'rr' to 'iops' ???
Furthermore, I would like to know, if the iops setting can be changed on a LUN, which has VM directories with running VM's ???
Is a restart necessary to make the changes effective?
Regards,
Didi7