• Management Pack:  SQL Server 2012
  • MP Version:  7.0.4.0
  • Released:  4/18/2018
  • Publisher:  Microsoft

Disk Read Latency Monitor

  • ID:  Microsoft.SQLServer.2012.Database.DiskReadLatencyMonitor
  • Description:  Disk Read Latency monitor for 2012 Databases. Note: This monitor is disabled by default. Please use overrides to enable it when necessary.
  • Target:  SQL Server 2012 DB
  • Enabled:  No

Operational States

Name State Description
DB disk read latency is ok Success DB disk read latency is ok
Too high DB disk read latency Error Too high DB disk read latency

Overridable Parameters

Parameter Name Default Value Description Override
Interval (seconds) 300 The recurring interval of time in seconds in which to run the workflow.
Timeout (seconds) 200 Specifies the time the workflow is allowed to run before being closed and marked as failed.
Threshold 40 Threshold
Number of samples 6 If the parameter threshold exceeding count is greater or equal to the number of samples, then the monitor will be in a bad state
Synchronization Time   The synchronization time specified by using a 24-hour format. May be omitted.

Alert Details

Monitor State Message Priority Severity Auto Resolution
Too high DB disk read latency (Error) SQL DB 2012 disk read latency is too high Medium Critical Yes

Run As Profiles

Name
Default

Monitor Knowledgebase

Summary

The monitor checks latency for the disk read operation and throws an alert.

This alert indicates that the average time that it takes to read data from the disk has stayed greater than threshold during an interval.

Note: This monitor is disabled by default. Please use overrides to enable it when necessary.

Causes

The problem may be caused by a disk bottleneck or disk contention.

Resolutions

To resolve this error, do one or more of the following:

  • Determine if disk performance has degraded or workload has increased.

  • Evaluate SQL Server Storage Best practices.

  • Determine if storage for database files has been overcommitted e.g. shared storage in SAN or Virtual Machines.

SQL Server Best Practices Article (Disk Configuration Best Practices & Common Pitfalls)

http://go.microsoft.com/fwlink/?LinkId=789184

External References
This monitor does not contain any external references.

See Also for SQL Server 2012 Management Pack


Downloads for SQL Server 2012 Management Pack

AZURE OPTIMIZATION ASSESSMENT GET STARTED
MIGRATION TO AZURE GET STARTED
SYSTEM CENTER MIGRATION TO AZURE GET STARTED
MIGRATION TO AZURE FOR SQL AND WINDOWS 2008 GET STARTED