The user performed the following actions:
- Upgrade the Deep Security Agent version.
- Reboot the OS for upgrading the agent.
- Install the Windows Update program.
- Restart the OS to apply the update program.
After doing so, the disk usage rate of C: drive increased. It continued to increase close to 100% until the customer restarted the Anti-Malware Solution Platform (AMSP) service.
In some environments, AMSP could cause high disk input/output when the common scan cache was on. This is a known issue in Deep Security 10.0.
By default, the AMSP common scan cache is enabled. To disable it, do the following:
- Open a Windows Command prompt on the Deep Security Manager computer.
- Go to the Deep Security Manager root folder. Below is a sample directory:
C:\Program Files\Trend Micro\Deep Security Manager
- Run the command below:
dsm_c -action changesetting -name settings.configuration.disableAmspCommonScanCache -value true