Differences

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--- services:dccmirrors [2017/04/27 18:45] – [Systems] dgalloway
+++ services:dccmirrors [2017/06/13 15:58] (current) – dgalloway
@@ Line 4: / Line 4: @@
 ===== Purpose/Background =====
-The goal of this project is to use/dogfood downstream RHCS to uncover difficulties in installing and maintaining the product.
+The goal of this project is to use/dogfood downstream RHCS software, docs, and ceph-ansible to uncover difficulties in installing and maintaining the product.
 Setup notes: https://docs.google.com/document/d/197cRnSA8QF1vYcAejvIT6tCG9Vi1nhUWrX987HTg7P4/edit
@@ Line 10: / Line 10: @@
 ===== Architecture =====
 ==== Systems ====
-There are two clusters.  One uses RGW and one uses RBD as the backend/client.  Both have MONs running on VMs in [[services:RHEV]].  Their public gateways are also VMs in RHEV.
+There are two clusters.  One uses RGW and one uses RBD as the client.  Both have 3 MONs running on VMs in [[services:RHEV]].  Their public gateways are also VMs in RHEV.
-There are affinity rules in place in RHEV to ensure the MONs all run on separate baremetal machines.  The same goes for the RBD and RGW VMs.
+There are affinity rules in place to ensure the RGW and RBD public gateways all run on separate baremetal hyperisors.
+There are also affinity rules in place in RHEV to ensure the MONs all run on separate baremetal hyperisors.
+=== RBD Cluster ===
 The RBD cluster's OSDs run on mira046, mira052, and mira084.
+The MONs run on dl-rbd-mon{01..03}.front.sepia.ceph.com.
+Since the RBD cluster is just serving a single block device, only one public VM (dl-rbd-pub) is required.
+=== RGW Cluster ===
 The RGW cluster's OSDs run on mira102, mira103, and mira106.
+According to Red Hat [[https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/2/html-single/object_gateway_guide_for_red_hat_enterprise_linux/#configuring_gateways_for_static_web_hosting|downstream docs]], at least two gateway hosts (dl-rgw-pub{01,02}) and two HAProxy servers (dl-rgw-ha{01,02}) are required to serve a static website.
 ==== Networking ====
-The clusters were set up to have all traffic go over the front VLAN.
+The clusters were set up to have all Ceph traffic go over the front VLAN.
+The RBD cluster's public VM has a NIC on front and a NIC on the WAN VLAN.
-Each cluster's public gateway is running on a VM in RHEV with an interface on the front and public VLANs.
+The RGW cluster's HAProxy VMs have a NIC on front and a NIC on the WAN VLAN.  The RGW clients themselves only have a NIC on the front VLAN.