COPYFILE (PACK is very simple, I never looked in the actual details but it replaces multiple occurances of the same character, inexpensive but not lots of gains. TERSE is much like ZIP and VMARC. The FCOPY tool on the download lib has a PACK option too, but that works like TERSE, not like COPYFILE. A reason why COPYFILE (PACK is used to transfer files from VM into the PC world, is that a safe binary download/upload is only possible for files with a FIXED recordlength. COPYFILE (PACK makes every file F1024 (TERSE too and VMARC F80; FCOPY creates a RECFM V file)
2007/7/12, Thomas Kern <[EMAIL PROTECTED]>:
When I first started getting electronic PTFs (VMFPLCD stuff) that needed DETERSEing, I DETERSEd a few and then COPYFILE (PACKed them. The original TERSEd files were smaller, insignificant when dealing with a couple of blocks for a CMS file, but I think it would be significant for even a 3390-m3 and even more for the 3390-m9's that I have to deal with. I am not sure if PACK or even TERSE in a pipeline is appropriate. PACK is a compatibility feature (PACK option to COPYFILE has been there since I started in June 1976). TERSE may also be a file-level compression that restructures all of the data into a new format (please no flames but if I am wrong here, a correction would be appreciated since I don't have TERSE to test with). What PIPELINES needs (and this has been mentioned on the CMSPIP-L) is a record by record compression stage or two or three dependi ng on data content. /Tom Kern
-- Kris Buelens, IBM Belgium, VM customer support
