On Tue, 30 Oct 2007 09:46:36 -0600, Howard Brazee wrote: > >But why should a program care about block size? >
Funny you should ask this; We had a major project implement a couple weeks ago. To deal with the number of object moves, many of the libraries were just cloned and renamed at implementation time. During this, a couple pretty important PDS's were reblocked. A pretty benign change from my point of view. It turns out a program update process allocates one of these PDS's SHR,BLKSIZE=3200. This effectively reblocked the PDS. Every member in this PDS that was longer than about 40 lines was corrupted and innaccessible. That's a reason to care, but probably not the point trying to be made. There are code bombs waiting to explode. Even a seemingly benign change can trigger one. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
