I have read ahead and see that you have the answer to your question. I would like to address one of the things you imply.
USS is part of z/OS (MVS). Thus z/OS allows one to share memory with other address spaces running under z/OS, which could be running in batch, TSO, CICS, or USS. Linux is another operating system. You cannot run Linux and z/OS in the same LPAR at the same time. You can run z/VM in the LPAR and run Linux and z/OS under z/VM, however this is not going to allow you to share memory between Linux and z/OS. -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Anatol Zolotusky Sent: Saturday, February 16, 2008 11:54 AM To: [email protected] Subject: Re: USS->Linux Dave, thanks for your reply. Actually my goal is not just to run Linux in another LPAR. What we would like to do is to reduce CPU usage by the USS part of our application by offloading it to an IFL running Linux. If I understand the architecture correctly, the only way to run Linux on an IFL is in a separate LPAR, therefore we're out of luck regarding usage of shared memory and semaphores. Or are we? Is there a way to run Linux on an IFL in the same LPAR as an MVS-USS application? (Sorry for a possibly silly question, but as I said, I'm new to the Linux on zSeries world). Thanks, --Anatol -----Original Message----- From: Linux on 390 Port on behalf of Dave Jones Sent: Sat 2/16/2008 10:26 AM To: [email protected] Subject: Re: USS->Linux Hello, Anatol. From your description of the configuration you want to run, it sounds like you will have z/OS (MVS) running in one LPAR and Linux for zSeries running in another. If this is correct, then the answer to your question is "no, there is no way to share memory or semaphores across LPARs". You are going to have to come up with some sort of communications protocol between the z/OS and Linux LPARs. Here hipersockets would be a good choice.... Anatol Zolotusky wrote: > I'm new to this list, and the FAQ link doesn't work, so please excuse > possible redundancy. > > We have a C++ application on USS, which communicates with an MVS > application via a shared memory segment and binary semaphores. > Presently we're contemplating porting that application to Linux on IFL. > I wonder if there are any means of interprocess communications, like > shared memory and semaphores, available for an MVS application to talk > to Linux on IFL. I know about HyperSockets, but that's networking, not > IPC. > > zVM is not an option for us, so I wonder if anyone has any ideas or > references for us. > > Thanks, > > --Anatol > > > ---------------------------------------------------------------------- > 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 -- DJ V/Soft z/VM and mainframe Linux expertise, training, consulting, and software development www.vsoft-software.com ---------------------------------------------------------------------- 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 ________________________________________________________________________________________________________________ CONFIDENTIALITY NOTICE: This email from the State of California is for the sole use of the intended recipient and may contain confidential and privileged information. Any unauthorized review or use, including disclosure or distribution, is prohibited. If you are not the intended recipient, please contact the sender and destroy all copies of this email. ---------------------------------------------------------------------- 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
