Mirroring a volume group using C-SPOC

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This topic describes mirroring a shared volume group using the C-SPOC utility.

About this task

To mirror a shared volume group using the C-SPOC utility:

Procedure

  1. Complete prerequisite tasks. The physical volumes ( hdisks ) in the volume group must be installed, configured, and available.
  2. On the any cluster node, enter smit cspoc
  3. In SMIT, select Storage > Volume Groups > Mirror a Volume Group.

    SMIT displays a list of shared volume groups and their owning resource group, if any, and the node list.

  4. Select a volume group and press Enter.
  5. Select entries from the list of nodes and physical volumes (hdisks) and Press Enter.

    SMIT displays the Mirror a Volume Group panel, with the selected entries filled in.

  6. Enter values for other fields as follows:
    Table 1. Mirror a Volume Group fields
    Field Value
    Resource Group Name SMIT displays the name of the resource group to which this shared volume group belongs.
    VOLUME GROUP name SMIT displays the name of the volume group that you selected to mirror.
    Node List The nodes on which this volume group is known.
    Reference node SMIT displays the node from which the name of the physical disk was retrieved.
    VOLUME names SMIT displays the name of a physical volume on the volume group that you selected to unmirror. This is the hdisk name on the reference node.
    FORCE deallocation of all partitions on this physical volume? The default is no.
    Mirror sync mode Select Foreground, Background, or No Sync. Foreground is the default.
    Number of COPIES of each logical partition Select 2 or 3 . The default is 2.
    Keep Quorum Checking On? You can also select yes or no .The default is no.
    Create Exact LV Mapping? The default is no.
  7. If this panel reflects the correct information, press Enter to mirror the shared volume group. All nodes in the cluster receive this updated information.