A Unity customer has a 20 TB pool consisting of SAS and NL-SAS drives. Based on Dell EMC best practices, what is the minimum recommended amount of Flash capacity they should use for a Flash tier?
Hybrid pool
Hybrid pools can contain HDDs (SAS and NL-SAS drives) and Flash, and can contain more than one type of
drive technology in different tiers. Hybrid pools typically provide greater capacity at a lower cost than all-Flash
pools, but also typically have lower overall performance and higher response times. Use hybrid pools for
applications that do not require consistently low response times, or that have large amounts of mostly inactive
data.
Dell Technologies recommends provisioning a Flash tier in hybrid pools. The Flash tier helps enable pool
performance efficiencies, and improves response times when using Snapshots and/or Replication. The
minimum recommended Flash capacity is at least 5% of the pool capacity.
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