Perform the following steps:

From the command line, run the following command:
autosupport invoke -node {node name | *} -type {test | performance | all}

Where:
-node is the name of the node you want the AutoSupport from. An '*' can be used as a wild card for all nodes.
-type is the type of AutoSupport. The types are test, performance or all.

Examples:
To trigger a complete AutoSupport for all nodes, type:
autosupport invoke -node * -type all


To trigger a performance AutoSupport for node filer-NAS-01 type:
autosupport invoke -node filer-NAS-01 -type performance