How do you troubleshoot performance issues

You want to monitor system performance in real time. 

In this scenario, which two tools would you use to accomplish this task? 

1. Ontap System Manager: Throughput | Latency | IOPs
2. CLI
3. ActiveIQ
4. Perfstat

a.     OCUM – Oncommand Unified manager for NetApp products only – Reporting tool

Oncommand performance manager (Part of OCUM Suite)

b.      You can use Cloud Insight formerly known as sanscreen, and then OCI reporting to diagnose and get to the bottom of the performance issues/root cause

c.     You can also run some CLI commands to find out the root cause:

                  i.    statistics show-periodic

                  ii.   qos statistics

c.      Dedup might be impacting performance.

d.     High CPU utilization can cause performance issues, or aggregate/volume might be close to 100%

e.     Sometimes it’s on the server side, some application can be causing performance issues, or the application/server needs to be rebooted and it resolves the issue.

f.      If you are not able to troubleshoot performance, you can also involve support.

1. Depends on the workloads….Database, application, etc….

=============================================================

Troubleshooting performance issues in NetApp ONTAP 9 involves a systematic approach to identify and isolate the cause of the problem. Here are some general steps you can follow:

1. Define the problem: Start by defining the performance issue. Identify which workload is affected and the specific symptoms, such as slow response times, high latency, low throughput, or errors. You can use performance monitoring tools like OnCommand Performance Manager to gather data and identify any trends or anomalies.
2. Collect data: Collect performance data from the storage system using tools like the System Manager, CLI, or performance monitoring tools. Gather data on CPU utilization, memory usage, disk I/O, network traffic, and other key metrics. Analyze the data to identify any patterns or trends.
3. Analyze the data: Analyze the performance data to identify any bottlenecks or issues that could be causing the problem. Look for high utilization levels, long response times, or other anomalies. Use performance troubleshooting tools like Performance Advisor or OnCommand Insight to help identify any issues.
4. Identify the cause: Once you have identified potential issues, work to narrow down the root cause of the problem. This may involve testing different configurations or scenarios to isolate the issue. Look for factors like misconfiguration, resource contention, or software bugs.
5. Implement a solution: Once you have identified the root cause, implement a solution to address the issue. This could involve adjusting configuration settings, optimizing resource allocation, upgrading hardware, or applying software patches or updates.
6. Monitor the system: After implementing a solution, continue to monitor the performance of the storage system to ensure that the issue has been resolved. Use performance monitoring tools to track performance metrics and look for any new trends or issues that could arise.

In summary, troubleshooting performance issues in NetApp ONTAP 9 involves a methodical approach to identify, isolate, and address the root cause of the problem. By regularly monitoring performance and quickly addressing any issues, you can optimize your storage system for better performance and reliability.