There are several server console commands that can help you troubleshoot Novell Cluster Services. Some of the commands are documented in the Novell Cluster Services installation documentation. See Novell Cluster Services Installation and Set Up for more information. Other NSS-specific commands are documented in the Novell Storage Services Administration Guide. See NSS Server Console Commands for more information.
Some of the cluster and cluster-related commands listed below are not documented elsewhere, and may require assistance from Novell Technical Services.
CLUSTER TRACE SBD ON|OFF
This command causes Split Brain Detection information to be echoed to the server console.
CLUSTER TRACE MCAST ON|OFF
This command causes multicast events to be echoed to the server console.
CLUSTER TRACE GIPC ON|OFF
This command causes GIPC events to be echoed to the server console.
CLUSTER TRACE ON|OFF
This command causes general cluster events to be echoed to the server console.
CLUSTER VLL GROUPS ON|OFF
This command causes a list of clustering multicast groups and status information to be displayed on the server console.
CLUSTER VLL STATS ON|OFF
This command causes VLL multicast statistics to be displayed on the server console.
NUDP ADD VirtualServerName IPAddress
This command binds the virtual server specified to the physical server where the command is executed, with the IP address specified.
This command causes the physical server where the command is executed to respond to the IP address specified (which must be bound to the server) using the virtual server name specified.
This command is normally added automatically to the load script when you cluster enable a pool or volume (create a virtual server). The command is necessary to ensure clients retain their drive mappings after a cluster-enabled volume fails over and clients automatically reconnect.
NUDP DEL VirtualServerName IPAddress
This command unbinds the virtual server specified from the physical server where the command is executed, with the IP address specified.
This command causes the physical server where the command is executed to stop responding to the IP address specified using the virtual server name specified.
This command is normally added automatically to the load script when you cluster enable a pool or volume (create a virtual server).
NUDP DISPLAY
This command displays all the virtual servers bound to the physical server where the command is executed.
SBD VIEW
This command displays Split Brain Detector (SBD) module information for the server where the command is executed.
This command can be used to verify that the SBD module is operational on the server where the command is executed.
SBD VIEW ALL
This command displays Split Brain Detector (SBD) module information for all servers in the cluster.
This command can be used to verify that the SBD module is operational on all servers in the cluster.
SBD TRACE
This command displays Split Brain Detector (SBD) activity on the server console screen.
ADD SECONDARY IPADDRESS IPAddress
This command binds the specified secondary IP address to the server where the command is executed.
DEL SECONDARY IPADDRESS IPAddress
This command unbinds the specified secondary IP address from the server where the command is executed.
DISPLAY SECONDARY IPADDRESS
This command displays all secondary IP addresses bound to the server where the command is executed.
SET ALLOW IP ADDRESS DUPLICATES=ON|OFF
This command enables the use of duplicate IP addresses on the IP subnet this server is attached to. This allows the server to bind and activate IP addresses even if the IP address is in use somewhere else on the network.
CLUSTER_START DISPLAYSTATS
This command displays the current statistics of the servers in the cluster.
CLUSTER_START CLEARSTATS
This command clears the current statistics of the servers in the cluster and starts the monitoring process over again.
/debug
This command switch can be added when loading the CVB and CRM modules. The switch causes addtional debug-related information to be displayed on the server logger screen, and can be used to help Novell Technical Services personnel troubleshoot cluster-related problems.
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