Convert mathematical formula to vROPs super metric ?

[AnkitCP]

Hi,

I have a mathematical formula that my customer's SAN admin uses for calculating Avg latency across LUNs in a VNX storage pool. This is shown below:-

LUN       IOPS      Avg_Response

1              10           20

2              100         2

Response time for storage pool = ((10*20) +(100*2))/(10+100) = 3.6

I have to create a super metric in vROPs using this formula. Is this possible? Please help.

[vharry]

Hi Ankit, you probably need to break it up into multiple supermetrics and place the datastores into a custom group. So create a super metric for the datastores to calculate the IOPS x AvgResponse, then create another supermetric that uses the individual metric created in step 1 together with the depth option to calculate the overall value. As for the (10+100) value you can use the depth option again to calculate the total for all the datastores in the group.