Direct LUN Access (Erl, Naserpour)
How can a virtual server overcome performance limitations imposed by emulated file-based storage?
ProblemLUNs mapped via a host bus adapter on the hypervisor can restrict data access to emulated file-based storage, which can impose performance limitations.
SolutionThe virtual server is granted direct access to block-based storage LUNs via the physical host bust adapter card.
ApplicationRaw device mapping technology is used to configure the hypervisor to enable access to raw, block-based LUNs to virtual server.
MechanismsCloud Storage Device, Cloud Usage Monitor, Hypervisor, Pay-Per-Use Monitor, Resource Replication, Virtual Server
Compound PatternsBurst In, Burst Out to Private Cloud, Burst Out to Public Cloud, Elastic Environment, Infrastructure-as-a-Service (IaaS), Multitenant Environment, Platform-as-a-Service (PaaS), Private Cloud, Public Cloud, Resilient Environment, Software-as-a-Service (SaaS)
A cloud architecture in which virtual servers are given direct access to block-based storage LUNs (Part 1).
A cloud architecture in which virtual servers are given direct access to block-based storage LUNs (Part 2).
NIST Reference Architecture Mapping
This pattern relates to the highlighted parts of the NIST reference architecture, as follows: