I am writing a monitoring system for Unity Storage and i have hit a roadblock . When I query Disk response time from Unity API using "sp.*.physical.lun.*.responseTime" query , I got the response time based on each Storage Processor , but the difference is so big from the overall disk response time .

As an example , A disk have the overall response time of 30ms , but the response time for SP A is about 1.86s.

I have no idea why it give me such numbers , can someone explain it to me ?

And how can i get the disk overall response time using API ?

(Sorry about my bad writing , English is not my first language)