Disk Cache Settings

For I/O-heavy applications like Primavera, set it to writeback.

• none: Gives you the best balance of native-level performance and data safety by bypassing the host cache, so it’s the usual pick for production and live migration.
• writeback: Delivers the highest performance by using the host’s RAM as a buffer, but you risk serious data loss if the host crashes before it syncs to disk.
• writethrough: Ensures maximum data integrity by only confirming writes after they’ve landed on physical storage, but write speeds will be painfully slow.

You’ll need to reboot after changing this setting.