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services:dccmirrors [2017/04/27 18:38]
dgalloway created
services:dccmirrors [2017/06/07 16:53]
dgalloway
Line 1: Line 1:
-====== download.ceph.com mirrors ======+====== ​WIP - download.ceph.com mirrors ======
 ===== Summary ===== ===== Summary =====
 We have two RHCS clusters running on mira that serve as mirrors for download.ceph.com. We have two RHCS clusters running on mira that serve as mirrors for download.ceph.com.
  
 ===== Purpose/​Background ===== ===== 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
  
 ===== Architecture ===== ===== Architecture =====
-There are two clusters. ​ One uses RGW and one uses RBD as the backend/client.+==== Systems ==== 
 +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 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. 
 + 
 +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 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.
  
-The RBD cluster ​currently runs on mira046, mira0+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.
services/dccmirrors.txt · Last modified: 2017/06/13 15:58 by dgalloway