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Enabling a controller allows a previously disabled path, HBA controller or array port to accept I/O again. This operation succeeds only if the path, controller or array port is accessible to the host, and I/O can be performed on it. When connecting Active/Passive disk arrays, the enable operation results in failback of I/O to the primary path. The enable operation can also be used to allow I/O to the controllers on a system board that was previously detached.
Note
This operation is not supported for controllers that are used to access disk arrays on which cluster-shareable disk groups are configured.
To enable I/O for a path, use the following command:
# vxdmpadm enable path=path_name
To enable I/O for the paths connected to an HBA controller, use the following command:
# vxdmpadm enable ctlr=ctlr_name
To enable I/O for the paths connected to an array port, use one of the following commands:
# vxdmpadm enable enclosure=enclr_name portid=array_port_ID
# vxdmpadm [-f] disable pwwn=array_port_WWN
where the array port is specified either by the enclosure name and the array port ID, or by the array port's worldwide name (WWN) identifier.
The following are examples of using the command to enable I/O on an array port:
# vxdmpadm enable enclosure=HDS9500V0 portid=1A
# vxdmpadm enable pwwn=20:00:00:E0:8B:06:5F:19