Does the “System Cache” value in Task Manager track SuperCache 3 or SuperVolume activity?
No. The “System Cache” value (under “Physical Memory (K)” on the “Performance” tab) shows the current physical memory in use and mapped to pages of open files. These mappings are managed by the operating system at the file-system driver level. Independently, SuperCache 3 and SuperVolume manage their caches at the storage volume device level, which is, logically-speaking, immediately below the file systems.