6.4. Upgrading from Red Hat Storage 2.1 to Red Hat Storage 3.0 in a Red Hat Enterprise Virtualization-Red Hat Storage Environment

This section describes the upgrade methods for a Red Hat Storage and Red Hat Enterprise Virtualization integrated environment. You can upgrade Red Hat Storage 2.1 to Red Hat Storage 3.0 using an ISO or yum.

6.4.1. Upgrading using an ISO

  1. Using Red Hat Enterprise Virtualization Manager, stop all the virtual machine instances.
    The Red Hat Storage volume on the instances will be stopped during the upgrade.

    Note

    Ensure you stop the volume, as rolling upgrade is not supported in Red Hat Storage.
  2. Using Red Hat Enterprise Virtualization Manager, move the data domain of the data center to Maintenance mode.
  3. Using Red Hat Enterprise Virtualization Manager, stop the volume (the volume used for data domain) containing Red Hat Storage nodes in the data center.
  4. Using Red Hat Enterprise Virtualization Manager, move all Red Hat Storage nodes to Maintenance mode.
  5. Perform the ISO Upgrade as mentioned in Section 6.1, “Upgrading from Red Hat Storage 2.1 to Red Hat Storage 3.0 using an ISO”.
    Red Hat Storage Node

    Figure 6.3. Red Hat Storage Node

  6. Re-install the Red Hat Storage nodes from Red Hat Enterprise Virtualization Manager.

    Note

    • Re-installation for the Red Hat Storage nodes should be done from Red Hat Enterprise Virtualization Manager. The newly upgraded Red Hat Storage 3.0 nodes lose their network configuration and other configurations, such as iptables configuration, done earlier while adding the nodes to Red Hat Enterprise Virtualization Manager. Re-install the Red Hat Storage nodes to have the bootstrapping done.
    • You can re-configure the Red Hat Storage nodes using the option provided under Action Items, as shown in Figure 6.4, “Red Hat Storage Node before Upgrade ”, and perform bootstrapping.
    Red Hat Storage Node before Upgrade

    Figure 6.4. Red Hat Storage Node before Upgrade

  7. Perform the steps above in all Red Hat Storage nodes.
  8. Start the volume once all the nodes are shown in Up status in Red Hat Enterprise Virtualization Manager.
  9. Upgrade the native client bits for Red Hat Enterprise Linux 6.4, if Red Hat Enterprise Linux 6.4 is used as hypervisor.

    Note

    If Red Hat Enterprise Virtualization Hypervisor is used as hypervisor, then install the suitable build of Red Hat Enterprise Virtualization Hypervisor containing the latest native client.
    Red Hat Storage Node after Upgrade

    Figure 6.5. Red Hat Storage Node after Upgrade

  10. Using Red Hat Enterprise Virtualization Manager, activate the data domain and start all the virtual machine instances in the data center.

6.4.2. Upgrading using yum

  1. Using Red Hat Enterprise Virtualization Manager, stop all virtual machine instances in the data center.
  2. Using Red Hat Enterprise Virtualization Manager, move the data domain backed by gluster volume to Maintenance mode.
  3. Using Red Hat Enterprise Virtualization Manager, move all Red Hat Storage nodes to Maintenance mode.
  4. Perform yum update as mentioned in Section 6.2, “Upgrading from Red Hat Storage 2.1 to Red Hat Storage 3.0 for Systems Subscribed to Red Hat Network”.
  5. Once the Red Hat Storage nodes are rebooted and up, Activate them using Red Hat Enterprise Virtualization Manager.

    Note

    Re-installation of Red Hat Storage nodes is required, as the network configurations and bootstrapping configurations done prior to upgrade are preserved, unlike ISO upgrade.
  6. Using Red Hat Enterprise Virtualization Manager, start the volume.
  7. Upgrade the native client on Red Hat Enterprise Linux 6.4, in case Red Hat Enterprise Linux 6.4 is used as hypervisor.

    Note

    If Red Hat Enterprise Virtualization Hypervisor is used as hypervisor, reinstall Red Hat Enterprise Virtualization Hypervisor containing the latest version of Red Hat Storage native client.
  8. Activate the data domain and start all the virtual machine instances.