Optimize PERC for SSD

Hello,

I recently purchased a single SSD drive to use as a vFlash Read Cache resource in a Dell PE R720. The SSD is connected to a PERC H710P. How should I configure the following virtual disk options in the PERC?

1. WRITE POLICY (enable/disable)
2. READ POLICY (Adaptive Read Ahead/No Read Ahead)

Thanks!