Fortimail VM - VM Disk TRIM/Discard options?

Hello DrKrieger01, 

Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible. 

Thanks, 

Hello,

We are still looking for an answer to your question.

We will come back to you ASAP.

Thanks,

Hello again DrKrieger01,

I found this solution. Can you tell us if it helps, please?

TRIM commands are typically used in SSDs to inform the drive which blocks of data are no longer considered in use and can be wiped internally. When it comes to virtual machines (VMs), the ability to issue TRIM commands can depend on the underlying storage and the virtualization platform you are using.

1. Virtual Environment: Ensure that your virtualization platform (such as VMware, Hyper-V, or KVM) supports TRIM commands. Some platforms pass these commands directly to the underlying storage.
   
   

2. File System Support: The file system used within your Fortimail VM must also support TRIM. For example, ext4 and Btrfs on Linux support TRIM.
   
   

3. Scripting TRIM: You can typically issue TRIM commands using the fstrim command in Linux. You can script this command and set it to run as a cron job. Here’s a basic example:
   
   

   #!/bin/bash fstrim -v / 

   
   Save this script as trim.sh, make it executable with chmod +x trim.sh, and then add it to your crontab:
   
   

   crontab -e 

   
   Add a line like this to run it weekly:
   
   

   0 2 * * 0 /path/to/trim.sh 

   
   This example runs the TRIM command every Sunday at 2 AM.
   
   

4. Built-in Features: Some systems may have built-in features to periodically run TRIM, but this varies by configuration. Check the documentation for your specific Fortimail version and the underlying OS.

I've been looking for the same information for Fortimanager.  FMG shows that I'm only using about 36GB of my drive, but the underlying thin-provisioned virtual disk has the 500GB almost completely full because the system is not trimming the deleted files.  You can run "diagnose system fsck" but not "diagnose system fstrim".  The Fortigate has the fnsysctl command which will let you run a lot of linux commands, but that command doesn't exist on FortiManager.