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Can OneIQ display external SAN IOPS and utilization metrics?

Understanding the difference between front-end IOPS vs back-end IOPS

Written by Omega Team

Overview

OneIQ provides visibility into storage performance metrics, including IOPS and utilization, based on data collected from the virtualization or hyperconverged infrastructure (HCI) layer (for example, VMware vCenter or Nutanix Prism Central). These metrics reflect how workloads consume storage resources from the hypervisor's perspective.

What OneIQ Measures

OneIQ captures front-end IOPS — that is, the actual I/O activity used by the servers and virtual machines.

Because OneIQ observes I/O at the hypervisor level:

  • It reflects real workload demand

  • This view is valuable for understanding how workloads consume storage performance from an infrastructure operations perspective

  • It provides the metrics typically used for capacity planning and storage sizing

Front-end IOPS are the standard measurement used when evaluating or replacing storage platforms because they represent application-driven activity, independent of the underlying storage technology.


What OneIQ Does Not Measure

OneIQ does not connect directly to physical SAN arrays and therefore does not report back-end (array-level) IOPS or utilization metrics. Back-end metrics are also generally not suitable for sizing or migration planning since they may contain I/O that are specific to each storage vendor and implementation such as:​

  • RAID overhead (for example, additional writes in RAID 5 or RAID 10)

  • Cache operations

  • Deduplication and compression processes

  • Snapshot and replication activity

  • Internal array management tasks

Summary

OneIQ delivers the IOPS and utilization data required to assess how workloads interact with storage and to support infrastructure planning decisions.
While it does not expose array-level metrics from external SAN systems, it provides the most relevant view for understanding and sizing storage based on real workload activity.

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