Updated Branches: refs/heads/master 1c32024a5 -> bb197ee21
cleaning up about-clusters.xml Project: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/repo Commit: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/commit/bb197ee2 Tree: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/tree/bb197ee2 Diff: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/diff/bb197ee2 Branch: refs/heads/master Commit: bb197ee21ce021f4adf3fa99e22f90329918701e Parents: 1c32024 Author: David Nalley <[email protected]> Authored: Wed Oct 17 21:57:16 2012 -0400 Committer: David Nalley <[email protected]> Committed: Wed Oct 17 21:57:16 2012 -0400 ---------------------------------------------------------------------- docs/en-US/about-clusters.xml | 34 +++++++++++++++++++++++++++++----- 1 files changed, 29 insertions(+), 5 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/bb197ee2/docs/en-US/about-clusters.xml ---------------------------------------------------------------------- diff --git a/docs/en-US/about-clusters.xml b/docs/en-US/about-clusters.xml index e328cba..a39cf71 100644 --- a/docs/en-US/about-clusters.xml +++ b/docs/en-US/about-clusters.xml @@ -24,9 +24,25 @@ <section id="about-clusters"> <title>About Clusters</title> - <para>A cluster provides a way to group hosts. To be precise, a cluster is a XenServer server pool, a set of KVM servers, a set of OVM hosts, or a VMware cluster preconfigured in vCenter. The hosts in a cluster all have identical hardware, run the same hypervisor, are on the same subnet, and access the same shared primary storage. Virtual machine instances (VMs) can be live-migrated from one host to another within the same cluster, without interrupting service to the user.</para> - <para>A cluster is the third-largest organizational unit within a &PRODUCT; deployment. Clusters are contained within pods, and pods are contained within zones. Size of the cluster is limited by the underlying hypervisor, although the &PRODUCT; recommends less in most cases; see Best Practices.</para> - <para>A cluster consists of one or more hosts and one or more primary storage servers.</para> + <para> + A cluster provides a way to group hosts. To be precise, a cluster is a + XenServer server pool, a set of KVM servers, a set of OVM hosts, or a + VMware cluster preconfigured in vCenter. The hosts in a cluster all + have identical hardware, run the same hypervisor, are on the same subnet, + and access the same shared primary storage. Virtual machine instances + (VMs) can be live-migrated from one host to another within the same + cluster, without interrupting service to the user. + </para> + <para> + A cluster is the third-largest organizational unit within a &PRODUCT; + deployment. Clusters are contained within pods, and pods are contained + within zones. Size of the cluster is limited by the underlying hypervisor, + although the &PRODUCT; recommends less in most cases; see Best Practices. + </para> + <para> + A cluster consists of one or more hosts and one or more primary storage + servers. + </para> <mediaobject> <imageobject> <imagedata fileref="./images/cluster-overview.png" /> @@ -34,6 +50,14 @@ <textobject><phrase>cluster-overview.png: Structure of a simple cluster</phrase></textobject> </mediaobject> <para>&PRODUCT; allows multiple clusters in a cloud deployment.</para> - <para>Even when local storage is used, clusters are still required. In this case, there is just one host per cluster.</para> - <para>When VMware is used, every VMware cluster is managed by a vCenter server. Administrator must register the vCenter server with &PRODUCT;. There may be multiple vCenter servers per zone. Each vCenter server may manage multiple VMware clusters.</para> + <para> + Even when local storage is used exclusively, clusters are still required + organizationally, even if there is just one host per cluster. + </para> + <para> + When VMware is used, every VMware cluster is managed by a vCenter server. + Administrator must register the vCenter server with &PRODUCT;. There may + be multiple vCenter servers per zone. Each vCenter server may manage + multiple VMware clusters. + </para> </section>
