The metrics "Usage Diagnostic - Disks > service ratio (%)"and "Disk activity (physical) - Specific > disk read/write ratio (%)" can be higher than 100% on Windows

Products

• CA Automic Sysload

Issue/Introduction

Affects Release version(s): 5

Error Message :
No error appear

Patch level detected:SP Analyst Agent for Windows 5.60
Product Version: Sysload 5.6.0

Description :The metrics "Usage Diagnostic - Disks > service ratio (%)"and "Disk activity (physical) - Specific > disk read/write ratio (%)" can be higher than 100% on Windows

Environment

OS: Windows

Cause

Cause type:
By design
Root Cause: The counter % Service Ratio is based on the counter % Disk Time retrieved from Perfmon on Windows.
The %Disk Time attribute can have a value greater than 100 percent. Some more relative counters/attributes to use for disk performance are % Idle Time and Avg Disk Queue Length.

Resolution

You can modify the default definition of the counter Usage Diagnostic - Disks > service ratio (%) modifying this line on the sldrmd.ini file:

[METAMETRICS_RULES]
Utilization_Storage_ServiceRatio=

Fix Status: Released

Fix Version(s):
Component: Agents
Version: Sysload 5.6.0

Additional Information

Workaround :
N/A