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Product : Pivot3, Acuity [HCI]/10.6.1, Datacenter
Feature : Node Failure Protection, Reads/Writes, Data Availability
Content Owner:  Herman Rutten
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Summary
Erasure Coding (N+1/N+3/N+5)
Details
The Pivot3 Acuity platform leverages patented Erasure Coding technology. Pivot3 Acuity Erasure Coding requires at least 3 nodes in a vPG. Pivot3 Acuity Erasure Coding is configured on a per volume basis, so EC levels can be mixed within the same vPG.

Configurable Erasure Coding levels:
EC1: Protects against 1 disk failure event OR 1 node failure event.
EC3: Protects against 3 simultaneous disk failure events OR 1 drive failure event + 1 node failure event.
EC5: Protects against 5 simultaneous disk failure events OR 2 drive failure events + 1 node failure event.