So long as crazed ideas are on the table, how about putting key MVS I/O subsystems in VM and providing "diagnose" interfaces to them from guests?
Kirk Wolf Dovetailed Technologies http://dovetail.com On Thu, Feb 25, 2010 at 10:59 AM, Thompson, Steve < steve_thomp...@stercomm.com> wrote: > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On > Behalf Of McKown, John > Sent: Thursday, February 25, 2010 10:41 AM > To: IBM-MAIN@bama.ua.edu > Subject: Re: Crazed idea: SDSF for z/Linux > > <SNIPPAGE> > > The z/OS JES spool. But it might be interesting to have similar for > VM:Spool, normal VM SPOOL, z/VSE, and others. But that's getting futher > afield. Like being able to read z/OS legacy (PS and PDS) datasets > directly. Again, to avoid any CPU use in z/OS itself. But security is > still an issue on all of these accesses. > > <SNIPPAGE> > > This is similar to using a Linux Live CD to diagnose and fix a Windows > system (even if it is running NTFS). > > The Linux system could be used for D/R purposes to diagnose or fix the > non-running system. > > Yes this raises security issues. But you have physical access in this > case. If these things are only given to the root or a special user w/in > the *nix environment, you have addressed much of the security issues. > > If you are running under VM, and VM is giving you access to the physical > addresses, then the security is controlled by VM. > > Regards, > Steve Thompson > > -- Opinions expressed by this poster may not reflect those of poster's > employer -- > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@bama.ua.edu 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 lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
