How to modify caching policies of Flash Pool aggregate

All Cluster Mode systems with Flash Pool Aggregate

Flash Pool is an aggregate that includes both HDD and SDD RAID groups.
Caching policies are applied to volumes that reside in Flash Pool aggregates.
Normally, the default settings are appropriate, but there are situations where it might be required to modify the settings.
You should understand how caching policies work before changing them.
You should modify the caching policy of a volume or volumes only if a different caching policy is expected to provide better performance.
In most cases, the default caching policy of auto is the best caching policy that you can use.
Configuring the wrong caching policy can severely degrade volume performance; the performance degradation could increase gradually over time.