---
title: "SMB Share Disk Performance Chart"
description: "The Disk chart displays historical statistics on disk usage for the selected SMB file share. The following table provides information on predefined views and counters."
canonical: "https://helpcenter.veeam.com/docs/one/userguide/hyperv_smb.html"
breadcrumb: "User Guide > Hyper-V Monitoring > Microsoft Hyper-V Performance Charts > SMB Share Disk Performance Chart"
dateModified: "2026-10-23"
---

# SMB Share Disk Performance Chart

The **Disk** chart displays historical statistics on disk usage for the selected SMB file share.


The following table provides information on predefined views and counters.

<table class="Blue_Table">
  <tr style="vertical-align:top">
    <th>
      <p>Chart View</p>
    </th>
    <th>
      <p>Counter</p>
    </th>
    <th>
      <p>Measurement Unit</p>
    </th>
    <th>
      <p>Description</p>
    </th>
  </tr>
  <tr style="vertical-align:top">
    <td rowspan="2" style="vertical-align:top;">
      <p style="text-align:left;"><span style="font-weight:bold;">Virtual Storage Issues</span></p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Errors/min</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Number</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Number of virtual storage errors per minute.</p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="vertical-align:top;">
      <p style="text-align:left;">Flushes/min</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Number</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Number of virtual storage flush operations per minute.</p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td rowspan="3" style="vertical-align:top;">
      <p style="text-align:left;"><span style="font-weight:bold;">Virtual Storage Usage</span></p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Virtual Storage Read</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">KB/s</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Total amount of data that have been read per second on the virtual storage.</p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="vertical-align:top;">
      <p style="text-align:left;">Virtual Storage Write</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">KB/s</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Total amount of data that have been written per second on the virtual storage.</p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="vertical-align:top;">
      <p style="text-align:left;">Virtual Storage Usage</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">KB/s</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Rate at which data is read and written per second on the virtual storage.</p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td rowspan="3" style="vertical-align:top;">
      <p style="text-align:left;"><span style="font-weight:bold;">Virtual Storage IOPS</span></p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Reads/sec</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Number</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Total number of read operations that have occurred on the virtual storage.</p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="vertical-align:top;">
      <p style="text-align:left;">Writes/sec</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Number</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Total number of write operations that have occurred on the virtual storage.</p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="vertical-align:top;">
      <p style="text-align:left;">IOPS</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Number</p>
    </td>
    <td style="vertical-align:top;">
      <p style="text-align:left;">Average number of read and write operations per second during collection interval.</p>
    </td>
  </tr>
</table>