hyper-converged-infrastructure.adoc: improved text

hyper-converged-infrastructure.adoc

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 :pve-toplevel:
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-{pve} has all the
-https://en.wikipedia.org/wiki/Hyper-converged_infrastructure[Hyper-converged Infrastructure]
-capabilities needed to deploy and manage a complete open source hyper-converged
-infrastructure.
+{pve} is a virtualization platform that tightly integrates compute,
+storage and networking resources, manages highly available clusters,
+backup/restore as well as disaster recovery. All components are
+software-defined and compatible with one another.
+
+Therefore it is possible to administrate them like a single system via
+the centralized web management interface. These capabilities make
+{pve} an ideal choice to deploy and manage an open source
+https://en.wikipedia.org/wiki/Hyper-converged_infrastructure[hyper-converged infrastructure].
+
+Benefits of a Hyper-Converged Infrastructure (HCI) with {pve}
+-------------------------------------------------------------
+
+A hyper-converged infrastructure is especially useful for deployments
+in which a high infrastructure demand meets a low administration
+budget, for distributed setups such as remote and branch office
+environments or for virtual private and public clouds.
+
+HCI provides the following advantages:
+
+- Scalability: seamless expansion of compute, network and storage
+  devices (i.e. scale up servers and storage quickly and independently
+  from each other).
+
+- Low cost: {pve} is open source and integrates all components you
+  need such as compute, storage, networking, backup, and management
+  center. It can replace an expensive compute/storage infrastructure.
+
+- Data protection and efficiency: services such as backup and disaster
+  recovery are integrated.
+
+- Simplicity: easy configuration and centralized administration.
+
+- Open Source: No vendor lock-in.
 
-It integrates tightly compute, networking, and storage resources into
-a single deployment unit and you can manage everything with the
-centralized web management interface. {pve} unifies your compute
-and storage systems, i.e. you can use the same physical nodes within a
-cluster for both computing (processing VMs and Containers) as well as
-for replicated storage.
 
 ifdef::wiki[]