---
title: "Host Cluster Physical Disk"
description: "Object Counter Instance Definition Cluster CSV File System Read Latency ms _Total The average latency between the time a read request arrived to the file system and the time when it was completed."
canonical: "https://helpcenter.veeam.com/docs/mp/hyperv_reference/host_cluster_disk.html"
breadcrumb: "Veeam MP for Microsoft Hyper-V Reference > Veeam MP for Hyper-V Metric Definitions > Host Cluster Physical Disk"
dateModified: "2026-09-17"
---

# Host Cluster Physical Disk

<table style="width:100%;" class="Blue_Table">
  <tr style="vertical-align:top">
    <th>
      <p> Object </p>
    </th>
    <th>
      <p> Counter </p>
    </th>
    <th>
      <p> Instance </p>
    </th>
    <th style="width:45%;">
      <p> Definition </p>
    </th>
  </tr>
  <tr style="vertical-align:top">
    <td>
      <p> Cluster CSV File System </p>
    </td>
    <td>
      <p><a name="ReadLatencyms" id="ReadLatencyms"/> Read Latency ms </p>
    </td>
    <td>
      <p> _Total </p>
    </td>
    <td style="width:45%;">
      <p> The average latency between the time a read request arrived to the file system and the time when it was completed. </p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td>
      <p> Cluster CSV File System </p>
    </td>
    <td>
      <p><a name="WriteLatencyms" id="WriteLatencyms"/> Write Latency ms </p>
    </td>
    <td>
      <p> _Total </p>
    </td>
    <td style="width:45%;">
      <p> The average latency between the time a write request arrived to the file system and the time when it was completed. </p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td>
      <p> Cluster CSV File System </p>
    </td>
    <td>
      <p><a name="IOPS" id="IOPS"/> IOPS </p>
    </td>
    <td>
      <p> _Total </p>
    </td>
    <td style="width:45%;">
      <p> Total number of read and write requests that were queued for the selected volume. </p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td>
      <p> Cluster CSV File System </p>
    </td>
    <td>
      <p><a name="UsageMBs" id="UsageMBs"/> Usage MB/s </p>
    </td>
    <td>
      <p> _Total </p>
    </td>
    <td style="width:45%;">
      <p> Rate at which bytes were read from and written to the volume. </p>
    </td>
  </tr>
</table>