>>> On 8/3/2013 at 12:11 AM, Paul Gilmartin <[email protected]> wrote: > OK. s/reentrant/sharable/, in the sense that the segment containing > the CMS nucleus be shared among many Virtual Machines. I believe > nothing similar can be done with the z/OS nucleus. Perhaps I'm > wrong; can it be done? Is it actively being done? Similar questions > about the Linux kernel.
There is support built into the Linux kernel to create a Named Saved System (NSS) of itself when booting. (NSS is proper term here, since you can issue an IPL command against an NSS, which you cannot do with a DCSS (DisContiguous Saved Segment). After that gets saved to spool, any z/VM guest can IPL using that shared NSS. Only one copy of it will be brought into real storage for any number of users. Mark Post ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
