Title: winperf_phydisk: fixed permanent stall state if windows reports several disks with the same drive letter
Level: 1
Component: checks
Compatible: compat
Version: 1.2.8b1
Date: 1453793706
Class: fix

It's not completely clear what makes windows report statistics for multiple disks with the same
letter but it was observed to happen in the wild. Most probably it is related to dynamic disks where
one drive spans multiple physikal disks.
