Hi Dave and others: Having worked for Wally many years ago at Unidata, his knowledge is unparalleled about Unidata. So given that I've been doing this for a number of years, I'm not sure where the 100 number is coming. The other numbers I have reams of paper, CD's, and thumb drives backing up all of the other numbers.
I have tested many a file with different blocks sizes with the same data either adding or subtracting records. I found the split and merge to not happen when I would expect it to. If you put more keys into a smaller modulo the percentage will change because you are using KEYONLY. Your record size is quite large so that is why going to a 2K block size will make things worse. I would recommend going to a 8K block size leaving the current modulo since you a near 100% overflow. You can try it on a temporary file and either tell me I'm wrong or I'm right. Regards, Doug www.u2logic.com/tools.html " _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users