> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of Ron and Jenny Hawkins > Sent: Friday, June 17, 2005 3:53 PM > To: [email protected] > Subject: Re: Emulating SELTAPE=NEXT on z/OS. > > > John, > > Isn't the recommended algorithm Random? The Next algorithm > favours causes a > trend to low order drives as I recall. > > Ron
I am not sure. It is not documented to my knowledge. What is happening is mainly political in nature. Some jobs are running longer than in the past. The programmer is insisting that it is due to tape I/O contention and that the allocation of tapes is favoring the low addressed drives. I've just done a report from Mainview (CMF) and the tape I/O activity appears to be fairly consistant across all addresses when looked at as a summary over two weeks. My bad attitude is just getting worse. -- John McKown Senior Systems Programmer UICI Insurance Center Information Technology This message (including any attachments) contains confidential information intended for a specific individual and purpose, and its' content is protected by law. If you are not the intended recipient, you should delete this message and are hereby notified that any disclosure, copying, or distribution of this transmission, or taking any action based on it, is strictly prohibited. ---------------------------------------------------------------------- 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
