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What steps can be taken to investigate and manage a sudden increase in data store usage

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ontap-9
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core
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Applies to

  • ONTAP 9
  • Virtualization environments
  • NFS

Answer

  1. Check for Virtual Machine (VM) Changes:
  • Verify if new VMs have been created or existing VMs have increased in size.
  • Examine VM configurations and usage patterns.
  1. Review Storage System Logs:
  • Use the EMS (Event Management System) logs to check for any anomalies.
  • Command: event log show
  1. Monitor Volume Usage:
  • Check the usage of volumes and snapshots.
  • Use the df command to monitor usage.
  1. Analyze Snapshot Utilization:
  • Compare the snapshot usage over different periods.
  • Identify if snapshots are consuming unexpected space.
  1. File System Analysis:
Since ONTAP does not monitor individual file operations, use file system tools within VMs to identify large files.
  1. Real-Time Usage Monitoring：
Use the df command to check real-time usage.

Additional Information

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NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.