166 IBM Certification Study Guide AIX HACMP
• Shared volume groups
• List all volume groups in the cluster.
• Import a volume group (with HACMP 4.3 only).
• Extend a volume group (with HACMP 4.3 only).
• Reduce a volume group (with HACMP 4.3 only).
• Mirror a volume group (with HACMP 4.3 only).
• Unmirror a volume group (with HACMP 4.3 only).
• Synchronize volume group mirrors (with HACMP 4.3 only).
• Shared logical volumes
• List all logical volumes by volume group.
• Add a logical volume to a volume group (with HACMP 4.3 only).
• Make a copy of a logical volume.
• Remove a copy of a logical volume.
• Show the characteristics of a logical volume.
• Set the characteristics of a logical volume (name, size); this is only
possible in non-concurrent mode and with HACMP 4.3.
• Remove a logical volume.
• Shared file systems (only applicable for non-concurrent VGs)
• List all shared file systems.
• Change/View the characteristics of a shared file system.
• Remove a shared file system.
C-SPOC has the following limitations:
• C-SPOC does not offer the option for creating volume groups. Use the
TaskGuide or standard AIX commands.
• The new Volume Group must be imported manually to other nodes in the
resource group (TaskGuide does it automatically).
• The Volume Group must be defined in a resource group, and cluster
resources must be synchronized, prior to using C-SPOC to manage it.
• C-SPOC does not offer an option for creating file systems. Use standard
AIX commands or SMIT menus to create file systems, and use C-SPOC to
update the VG information on the other nodes.
• C-SPOC cannot be used for concurrent shared LVM components prior to
HACMP 4.3 for AIX.
