Tagging – Controlling Activation

• You can specify in the config file that only certain LVs should be activated on that host.

• e.g. activation { volume_list = [“vg1/lvol0”, “@database” ] }

• This acts as a filter for activation requests (like 'vgchange -ay') and only activates vg1/lvol0, any LVs or VGs with the 'database' tag in the metadata on that host.

• There is a special match “@*” which causes a match only if any metadata tag matches any host tag on that machine.