The Batch Interface › PARM Parameters › GROUP

GROUP

Tells CA XCOM Data Transport to use the pooled LU feature to allow for multi‑threading of transfers to nodes that support multiple logical units but not parallel sessions.

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Specifies the name of a group of LUs. The name can be eight characters long. The first character of the name must be alphabetic, while the rest can be any combination of alphanumeric or national characters.

Notes:

• GROUP, LIST, LU, and IPNAME are mutually exclusive parameters. One of these parameters must be coded (either on the EXEC card or in SYSIN01); however, coding more than one causes an error.
• The group must be predefined in the CA XCOM Data Transport control library (CAI.CBXGPARM). When the transfer process begins, CA XCOM Data Transport tries transferring to the first LU in the group. If that attempt fails, the second LU is tried. If that transfer attempt fails, the third LU is tried, and so on. However, as soon as CA XCOM Data Transport finds an LU that is available for the partner node, it transfers the data to that LU and stops making any further transfer attempts.
• Group processing is supported for TCP/IP transfers but only for a single IP address. In this way, an alias can be defined within CA XCOM Data Transport for an IP address.
• When GROUP= or LIST= is used, the value for IPPORT is determined by either the destination member or the default table.
• Session establishment is subject to a time‑out limit defined on the TIMEOUT parameter. See the description of this parameter later in this section.