|Configure Block Storage / Use an HP 3PAR SAN|
This topic describes the operation modes available for 3PAR SAN backends for Eucalyptus cloud.
The Eucalyptus 3PAR backend provider implements a mapping between EBS and 3PAR concepts. Operation mode optimization allows you to make storage operations more efficient in your cloud. Predominant use cases are described below.
The default use case assumes that you snapshot rarely, create volumes from snapshots (without growing volumes) often, and you run EBS-backed instances often.
Supporting this use case, the default threeparoptimizesnaptovol setting is true.
This use case assumes that you snapshot often, but create volumes from snapshots rarely.
If this use case is the best strategy for your storage operations, set threeparoptimizesnaptovol to false.