Using the Fstrim option on the Pools page you can trim the unused blocks on the selected NSS pool. This process runs in the background. For more information on the trimmed size in bytes, see fstrim Last Trimmed Size on the Pools Details area of the Pools page display information about a selected pool. You can also view the fstrim status information at /var/log/messages.
In iManager, click Storage > Pools.
For instructions, see Section 10.1.5, Accessing Roles and Tasks in iManager.
Select a server to manage.
For instructions, see Section 10.1.6, Selecting a Server to Manage.
In the Pools list, select the pool on which fstrim has to be executed.
Click Fstrim. A pop-up message is displayed. Click OK to continue.
The fstrim request is submitted successfully.
Click OK to return to iManager welcome page or click Repeat Task to return to Pools page.