If the TOBSNO= option
is not specified, its value is calculated based on the observation
length and the size of the server's transmission buffers, as specified
by the PROC SERVER statement TBUFSIZE= option.
The TOBSNO= option is
valid only for data sets that are accessed through a SAS server via
the REMOTE engine. If this option is specified for a data set opened
for update or accessed via another engine, it is ignored.