Defragmenting file systems

Last published : Jul 06, 2026
The Management Server console lets you defragment mounted VxFS file systems. When a file system is fragmented, it gets full of un-contiguous locations on the file system which in turn affects performance while reading the data. Defragmenting file systems helps in seeking data quickly. This operation is available only for VxFS file systems.
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 defrag a file system
  1. In the Management Server console, go to the Server perspective and expand Manage in the left pane.
  2. Expand the Organization or Uncategorized Hosts to locate the host.
  3. Expand the host and select Volumes.
  4. Right-click on the required volume and select File System>Defrag.
  5. In the Defrag File System wizard panel, confirm the file system you want to defragment. Click OK.
See Defrag file system panel options.
This operation may take several minutes, depending on the size of the file system.
  1. In the Result panel, verify that the command for defragmentation is running successfully and a warning message is displayed.
See About managing file systems.
See Creating file systems.