We tried this but there is a problem with the BSZ:
CREATE TABLE "/usr4/gg4",32,BSZ=8,SEP=$0A$
open(1)"/usr4/gg4
?fin(1,"file_create")
KEYED "/usr4/gg4",32,0,-1,BSZ=4,OPT="2",SEP=$0A$
CREATE TABLE "/usr4/gg4",32,BSZ=16,SEP=$0A$
open(1)"/usr4/gg4
?fin(1,"file_create")
KEYED "/usr4/gg4",32,0,-1,BSZ=4,OPT="2",SEP=$0A$
CREATE TABLE "/usr4/gg4",32,BSZ=20,SEP=$0A$
open(1)"/usr4/gg4
?fin(1,"file_create")
KEYED "/usr4/gg4",32,0,-1,BSZ=4,OPT="2",SEP=$0A$
Regardless of the BSZ specified on the CREATE TABLE directive, the result is BSZ=4, so 8 GB file size limit
The only solution to have a file who looks like a sort with a BSZ as you want (and a record lenght to 1 !!) :
CREATE TABLE "/usr4/gg4",32,0,1,BSZ=16,SEP=$0A$
open(1)"/usr4/gg4
?fin(1,"file_create")
KEYED "/usr4/gg4",32,0,-1,BSZ=16,OPT="2",SEP=$0A$
If you don't specify the record lenght the BSZ is always 4, if you specify the record lenght to 0 it is alaways 256.
We have to specify a record lenght to 1 to have the BSZ to what you want, this is not a real SORT file (record lenght = 0)