EMC VNX – RAID groups vs Storage Pools
With EMC training I have learnt some general guidelines, that should be followed to optimize and enable good performance on a VNX Unified storage system.
Drive types
When you chose a specific drive type, you should base your choice upon the expected workload.
FLASH – Extreme Performance Tier – great for extreme performance.
SAS – Performance Tier – perfect for general performance. Usually 10k RPM or 15k RPM.
NL-SAS – Capacity Tier – most cos...
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RAID groups
EMC VNX FAST VP Definition
EMC VNX FAST VP Definition
FAST VP stands for Fully Automated Storage Tiering for Virtual Pools. It’s a very smart solution for dynamically matching storage requirements with changes in the frequency of data access. FAST VP segregates disk drives into three categories (already explained in EMC VNX – RAID groups vs Storage Pools) called tiers:
Extreme Performance Tier – Flash drives
Performance Tier – 15k and 10k SAS drives
Capacity Tier – Near-line SAS drives (that can be up to 4TB i...
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