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PANOPOLL is a system parameter that disables CI and DSSI polling for ports if set to 1. (The default is 0.) When PANOPOLL is set, a computer does not discover that another computer has shut down or powered down promptly and does not discover a new computer that has booted. This parameter is useful when you want to bring up a computer detached from the rest of the cluster for checkout purposes. PANOPOLL is functionally equivalent to uncabling the system from the DSSI or star coupler. This parameter does not affect OpenVMS Cluster communications by LAN. The default value of 0 is the normal setting and is required if you are booting from an HSC controller or if your system is joining an OpenVMS Cluster. This parameter is ignored if no CI or DSSI devices are configured on your system. PANOPOLL is a DYNAMIC parameter.