Thomas Kern wrote:
I am pretty sure it would take at least a new driver and probably a new
filesystem, akin to CMSFS for a start. But then you get into the area of
security. Without z/OS doing the file access, your z/OS security package
cannot validate any of the linux i/o to each file. Any process on linux
might be able to read all of your z/OS data. If you want to do this in a
controlled linux just for the purpose of coping z/OS data to linux data
and setting the linux uid/gid and permissions properly for each data
file, then you might get by with something as simple as the CMSFS.
I would look at two alternatives. One, push the data from z/OS to linux
with something like Co:Z and then leave all processing of that data in
linux, DON'T bring it back to z/OS all the time. Two, consider
building/buying a custom client/server application, with linux as the
client, requesting some data from z/OS and the server in z/OS validating
each request against your security pacakge before delivering the data.
But again, those alternatives are meant to stay within the scope of a
z/OS security package. If you don't need to bother with the security
I imagine it's possible to port Linux to z/OS. I'm thinking here of the
user-mode-linux model, where the kernel's "hardware" is provided in the
host OS.
It would need tty devices, those could be implemented via telnet (or
maybe ssh for the security-conscious).
DASD, to run from, could be a VSAM dataspace or dataset.
Imagine
//penguin exec pgm=linux,parm='netconsole=....'
//boot dd dsn=penguin.boot,disp=shr
//root dd dsn=penguin.root,disp=shr
//home dd vol=ref=penguin.home,disp=old An entire disk
//* more DASD
//sysprint dd sysout=* kernel log
//sysin dd * more kernel/initrd parms
/*
--
Cheers
John
-- spambait
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