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Version: DPX vPlus 7.3

Ceph RBD

General​

In order to connect to Ceph RBD you need to provide the keyring and configuration files. The Ceph RBD storage provider should detect the volumes and pools in the environment and allow you to assign backup policies. DPX vPlus uses the RBD-NBD approach to mount a remote RBD snapshot over NBD and read data.

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Note:

  • DPX vPlus needs access to the monitors specified in the Ceph configuration file.
  • When creating Ceph RBD storage provider for the OpenStack environment, only the credentials specified in the storage provider form are used by the OpenStack backup process - the actual technique (RBD-NBD mount or cinder in disk-attachment strategy) and node for connecting and the backup volumes depend on the OpenStack hypervisor manager settings, not in the storage provider settings.

Example​

Complete the following steps to add the Ceph RBD storage provider:

  • DPX vPlus Node supports Ceph RBD, for which you will need to install ceph libraries:
    • On DPX vPlus Node enable the required repositories:
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Remember to select the version of the Ceph repository that is compatible with the version of the cluster in your environment.

For DPX vPlus node installed on RHEL 7:

sudo subscription-manager repo --enable=rhel-7-server-rhceph-4-tools-rpms

For DPX vPlus node installed on RHEL 8:

sudo subscription-manager repo --enable=rhceph-4-tools-for-rhel-8-x86_64-rpms

For DPX vPlus node installed on CentOS 7:

sudo yum install epel-release
sudo rpm --import 'https://download.ceph.com/keys/release.asc'
sudo yum install https://download.ceph.com/rpm-octopus/el7/noarch/ceph-release-1-1.el7.noarch.rpm

For DPX vPlus node installed on CentOS Stream 8:

sudo yum install epel-release
sudo rpm --import 'https://download.ceph.com/keys/release.asc'
sudo yum install https://download.ceph.com/rpm-octopus/el8/noarch/ceph-release-1-1.el8.noarch.rpm

For DPX vPlus node installed on CentOS Stream 9:

sudo yum install epel-release

Add Ceph repository

vi /etc/yum.repos.d/ceph.repo
[ceph]
name=Ceph packages for $basearch
baseurl=https://download.ceph.com/rpm-reef/el9/$basearch
enabled=1
priority=2
gpgcheck=1
gpgkey=https://download.ceph.com/keys/release.asc

  • Install the rbd-nbd and ceph-common package, with all dependencies:

    yum install rbd-nbd ceph-common

  • Go to Storage -> Infrastructure and click Create button

  • Choose Ceph RBD as the type and select the node configuration responsible for backup operations

  • Click Upload keyring file button and select Ceph keyring file which can be obtained from the Cinder host - for example in /etc/ceph/ceph.client.admin.keyring

  • Provide Ceph configuration file content, for example:

      [global]
      cluster network = 10.40.0.0/16
      fsid = cc3a4e9f-d2ca-4fec-805d-2c40605723b3
      mon host = ceph-mon.domain.local
      mon initial members = ceph-00
      osd pool default crush rule = -1
      public network = 10.40.0.0/16
      [client.images]
      keyring = /etc/ceph/ceph.client.images.keyring
      [client.volumes]
      keyring = /etc/ceph/ceph.client.volumes.keyring
      [client.nova]
      keyring = /etc/ceph/ceph.client.nova.keyring
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Note: Remember, above content need to end with the new line sign.

  • If you want to index only ceph pools of your choice, change Storage pool management strategy to INCLUDE and add storage pool names.
  • Click Save - now you can initiate inventory synchronization (pop-up message) to collect information about available volumes and pools
    • later you can use the Inventory Synchronization button on the right of the newly created provider on the list.
  • Your volumes will appear in theInstances section in the submenu on the left, from which you can initiate backup/restore/mount tasks or view volume backup history and its details.