Hi, it was me asking about the "DDname concatenation" before. Named pipes looks to have almost everything we need.
The scenario is a large SAS job sequentially reading dozens of tape datasets under the one input DDNAME, which in the named pipe case might look like the case outlined by Ed M. Thanks again to John M for thinking about it and Ed M for going into a bit of detail. I'm still a bit leery of the extra I/O, as that equates to elapsed time which is our enemy in this scenario. I may try a named pipe test on a small case just to see what happens but Leslie's small test does not augur well. best regards Peter Peter Bishop HP Enterprise Services Asia Pacific South Mainframe Capability & Engineering +61 2 9012 5147 office | +61 2 9012 6620 fax | [email protected] 36-46 George St | Burwood | NSW 2134 Australia -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of McKown, John Sent: Saturday, 14 November 2009 9:00 AM To: [email protected] Subject: Re: weird(?) idea for an extended symlink functionality > -----Original Message----- > From: Linux on 390 Port [mailto:[email protected]] On > Behalf Of David Boyes > Sent: Friday, November 13, 2009 3:50 PM > To: [email protected] > Subject: Re: weird(?) idea for an extended symlink functionality <snip> > > That's what a named pipe is for. If you create the named pipe > pointing to > 'cat < file1 file2 file3' you get exactly those semantics. No > system changes > necessary. > I hadn't thought of that. David Rivers suggested the same thing. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell [email protected] * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
