COMMMETHOD

The COMMMETHOD option specifies a communication method to be used by the server.

You can configure the server to use multiple communication methods. The more commonly used are the TCPIP, V6TCPIP, and SHAREDMEM communication methods. To specify multiple communication methods, enable each method by adding a COMMMETHOD stanza to the dsmserv.opt options file.

Important: When you enable a communication method, you must also add the options that are specific to the communication method to the options file.

Syntax


               .-TCPIP-----.   
>>-COMMMethod--+-NAMEDPIPE-+-----------------------------------><
               +-NONE------+   
               +-SHAREDMEM-+   
               +-SNMP------+   
               +-TCPIP-----+   
               '-V6TCPIP---'

Parameters

You can choose one of the following communication methods:

NAMEDPIPES: Specifies the named pipes communication method option.
NONE: Specifies that no communication method is used. This option does not allow users to connect to the server and is useful for experimenting with policy commands.
SHAREDMEM: Specifies the shared memory communication method option. This method uses the same area of memory to send data between several applications at the same time. Both the server and the backup-archive client must be configured to support the shared memory communication method, and they must be installed on the same computer.
SNMP: Specifies the SNMP communication method option.
TCPIP: Specifies the TCP/IP communication method option. This option is the default. When TCPIP is specified, TCP/IP Version 4 is used exclusively.
V6TCPIP: Specifies the TCP/IP communication method option. If TCP/IP Version 4 and Version 6 are both configured, Tivoli® Storage Manager uses both protocols simultaneously. If both COMMMETHOD TCPIP and COMMMETHOD V6TCPIP are specified, V6TCPIP overrides the specification of TCPIP. A valid domain name server (DNS) environment must be present to use either TCP/IP V4 or TCP/IP V6 if this option is specified.

Examples

Example of specifying multiple communication methods to be used by the server (TCP/IP and TCP/IP Version 6):

commmethod tcpip
commmethod v6tcpip