Bruce, Thank you for the quick response and rhe explanation of what I was seeing. I'll split the DRP jobs for my next DR into something that closely resembles my backups. That should ensure maximum concurrancy. Regards, Dave O'Brien NIH Contractor
________________________________ From: Bruce Black [mailto:[EMAIL PROTECTED] Sent: Fri 5/5/2006 2:50 PM To: [email protected] Subject: Re: FDR Performance at DR Dave, sorry that you got no response but we have no record of getting a question from you. If you emailed the question, it was probably misaddressed or something. The proper email address is [EMAIL PROTECTED] After sorting the disk volumes by backup tape volser and file sequence, FDRDRP selects the first 100 disks in the list. Those 100 disks are completely restored before we start the next set of 100. This explains the behavior you saw. Some customers submit multiple FDRDRP jobs, with no more than 100 SELECTs each, to get more concurrency. If multiple jobs need the same tapes, FDRDRP can pass tapes back and forth between then without dismounting, just like it does in a single FDRDRP step. However, we don't attempt to optimize tape usage between jobs, so a given tape may be mounted more than once, depending on when it is needed in each job. -- Bruce A. Black Senior Software Developer for FDR Innovation Data Processing 973-890-7300 personal: [EMAIL PROTECTED] sales info: [EMAIL PROTECTED] tech support: [EMAIL PROTECTED] web: www.innovationdp.fdr.com ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
