The sddriver/asnsd image pair form a striping driver for VAX which can be used on any disks or sections of disks, no matter how they are connected to your Vax. "SD" means Striping Driver. See SD.DOC for info on how to use. build: $macro asnsd $macro sddriver $link asnsd+sys$system:sys.stb/sel $link sddriver+sys$system:sys.stb/sel+sys$input/opt base=0 $! now load the units. $ sysgen:==$sysgen $ copy asnsd.cld sys$system: $ copy asnsd.exe sys$system: $ copy sddriver.exe sys$system: $ sysgen connect sda0:/noada/driver=sddriver $ set command sys$system:asnsd $ $ asnsd/switches sda0: disk:file disk:otherfile ... Container files must be contiguous and should not move; mark them /nomove and possibly /nobackup. I suggest usung the SYSGEN CREATE command to create them. Be sure to use the /contig switch. If they are not contiguous the asnsd utility will reject them. Glenn Everhart