You can use the esxcli commands to change the I/O scheduling capability. The capability is enabled by default.

Prerequisites

Install ESXCLI. See Getting Started with ESXCLI. For troubleshooting, run esxcli commands in the ESXi Shell.

Procedure

  • To enable or disable per file I/O scheduling, run the following commands:
    Option Description
    esxcli system settings kernel set -s isPerFileSchedModelActive -v FALSE Disable per file I/O scheduling
    esxcli system settings kernel set -s isPerFileSchedModelActive -v TRUE Enable per file I/O scheduling