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How to modify caching policies of Flash Pool aggregate

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Applies to

All Cluster Mode systems with Flash Pool Aggregate

Description

  • 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.

 

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