OS 6.X Write Cache Enable/Disable?

[clg666]

There was an option to adjust this in the old OS but I cannot seem to find it in the new. Is it hiding somewhere?

[JabbaTheHutt]

There is no option for write cache in OS 6.
You have the option to enable/disable checksumming at the volume level.
System/Volume <click on volume> and the settings.