Creating an I/O trace log

Last published : Jun 19, 2026
The Management Server console lets you create an IO trace log for a set of volumes, mount-points, disks, or disk groups. You can also specify the duration for which SmartAssist must collect the I/O trace log.
For more information on the SmartAssist I/O analysis tool, see:
About SmartAssist (cross reference)
The tool collects I/O traces from the target storage for a specified duration, and saves them at the following location:
/var/vx/smartassist
To perform this task, your user group must be assigned the Admin role on the host or the Server perspective. The permission on the host may be explicitly assigned or inherited from a parent Organization.
To create an I/O trace log
  1. In the Management Server console, go to the Server perspective, and expandManage in the left pane.
  2. Expand Organization orUncategorized Hosts to locate and select the host.
  3. Right-click the host and select SmartIO>Configuration.
  4. In the SmartIO overview panel, click SmartAssist.
  5. Click New I/O Trace Log to launch the New I/O Trace Log wizard.
  6. In the New I/O Trace Log panel, enter the details, and clickOK.
For details, see:
See New I/O Trace Log panel options.
See Viewing the SmartIO Impact analysis chart.
See Analyzing an I/O trace log.