Sessions and Instances
The values that you specify with the Update operator MinSessions and MaxSessions attributes
are not the only factors that limit the number of sessions that the Update operator
establishes with the Teradata Database. The other limiting factors are:
The Teradata Database limit of one session per available AMP
The platform limit on the maximum number of sessions per application.
On network-attached client systems for UNIX, Linux, and Windows systems, this value
is defined in the COP Interface software file, clispb.dat, under the max_num_sess variable.
On mainframe-attached z/OS client systems, this value is defined in the HSHSPB parameter under the IBCSMAX setting.
On mainframe-attached z/OS client system, use the TDP SET MAXSESSIONS command to specify
a platform limit.
The limit of the network protocol software on network-attached systems