mlm.non events

Contributors

mlm.non.optimized.TPusage

Severity

ERROR

Description

This message occurs when Data ONTAP® detects non-optimized usage of an array’s target port. This message indicates degradation of I/O throughput for the indicated array’s target port and the cause should be corrected.

Corrective Action

Increase the target port queue depth for the array’s target port and/or increase the number of array target ports available for I/O to alleviate the SCSI I/O command load for the array’s target port. For example, to increase the maximum allowed I/O commands for an array’s target port, the following command can be run: storage array port modify -name ARRAY_NAME_1 -wwnn 50014380025d1500 -wwpn 50014380025d1508 -max-queue-depth 750

Syslog Message

Detected non-optimized usage of a array’s target port. WWPN: %s, average service time: %dus, average latency: %dus

Parameters

wwpn (STRING): World Wide Port Name of the array’s target port which the non-optimized usage was detected on.
avg_service (INT): Current average service time of I/O commands for the array’s target port in microseconds.
avg_latency (INT): Current average latency of I/O commands for the array’s target port in microseconds.