PostgreSQL on z/OS
Folks,
At Linuxworld Expo/SF, I got a chance to talk a bit with one Andrew
Schmidt of IBM about the possibility of porting PostgreSQL to z/OS.
Here's what he asked about. Any z/OS developers in the house who can
address it?
Cheers,
D
----- Forwarded message from Andrew Schmidt <andrewds@us.ibm.com> -----
In mid August, I did make some inquiries about using our ISV
facilities, but as we do not have for z/OS any 'free' locations, I
continue to check other avenues. Could you do me a favor and
document (doesn't have to be deeply technical) the requirements that
you would have on such a facility you would need access to in terms
of software, amount of time, duration of usage, that sort of thing.Am I to take it, by the way, that this is being requested as a free
service? If you are a Partnerworld for Developers member, we
certainly have for-fee locations that are available to you.Regards -
- Andrew
---------------------------------------------------------------------------------------------------------
IBM eServer Solution Offering for Linux (http://ibm.com/servers/enable/)
http://ibm.com/servers/eserver/zseries/solutions/s390da/linuxproduct.html
Phone: (845) 435-6134 Fax (845) 432-9132 Tie Line 8-295-6134
Building 708 Office 2C3
andrew_schmidt@us.ibm.comUS Mail:
IBM Systems and Technology Group, Dept. Q5CA Mail Station P389
2455 South Road, Poughkeepsie NY 12601-5400
----- End forwarded message -----
--
David Fetter david@fetter.org http://fetter.org/
phone: +1 510 893 6100 mobile: +1 415 235 3778
Remember to vote!
I am not currently working on z/OS, and don't have access to a z/OS
environment, but I did a little work with getting OpenLDAP ported to
z/OS at my previous company. I assume you mean Unix System Services
(USS) under z/OS, rather than zLinux. Since zLinux is essentially Suse
ported to the Z architecture, I don't imagine there would be major
issues there.
USS, on the other hand, is a different story. It's "posix compliant", so
the basic C stdlib stuff works, and things like shared memory are
available, etc. But because it co-exists in a weird way with MVS, there
is a lot of extra baggage to worry about, especially in the security
area (RACF). In order to get the best performance out of it, you would
need to run the server as a "started task", meaning it would be started
from the MVS side of the house via JCL.
There is also the question of what other open-source/GNU type things the
build environment depends on. Here is a list of open-source projects
that have been ported to USS available from IBM:
http://www.ibm.com/servers/eserver/zseries/zos/unix/redbook/index.html
This is a limited set, and most of the packages are some revs back.
You're not limited to this set, of course - it just might mean extra
porting.
And here is a link from the OpenLDAP FAQ posted by the OpenLDAP
committer who did the bulk of the porting for us:
http://www.openldap.org/faq/data/cache/719.html
In general, I found working with USS somewhat unpleasant, but porting
postgres should be possible.
- DAP
Show quoted text
-----Original Message-----
From: pgsql-hackers-owner@postgresql.org
[mailto:pgsql-hackers-owner@postgresql.org] On Behalf Of David Fetter
Sent: Wednesday, September 01, 2004 12:16 PM
To: PG Hackers
Subject: [HACKERS] PostgreSQL on z/OSFolks,
At Linuxworld Expo/SF, I got a chance to talk a bit with one
Andrew Schmidt of IBM about the possibility of porting
PostgreSQL to z/OS.Here's what he asked about. Any z/OS developers in the house
who can address it?Cheers,
D----- Forwarded message from Andrew Schmidt <andrewds@us.ibm.com> -----
In mid August, I did make some inquiries about using our ISV
facilities, but as we do not have for z/OS any 'free' locations, I
continue to check other avenues. Could you do me a favorand document
(doesn't have to be deeply technical) the requirements that
you would
have on such a facility you would need access to in terms of
software,
amount of time, duration of usage, that sort of thing.
Am I to take it, by the way, that this is being requested as a free
service? If you are a Partnerworld for Developers member, we
certainly have for-fee locations that are available to you.Regards -
- Andrew
----------------------------------------------------------------------
-----------------------------------
IBM eServer Solution Offering for Linux
(http://ibm.com/servers/enable/)http://ibm.com/servers/eserver/zseries/solutions/s390da/linuxpr
oduct.htmlPhone: (845) 435-6134 Fax (845) 432-9132 Tie Line 8-295-6134
Building 708 Office 2C3
andrew_schmidt@us.ibm.comUS Mail:
IBM Systems and Technology Group, Dept. Q5CA Mail Station P389
2455 South Road, Poughkeepsie NY 12601-5400----- End forwarded message -----
--
David Fetter david@fetter.org http://fetter.org/
phone: +1 510 893 6100 mobile: +1 415 235 3778Remember to vote!
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On Wed, 2004-09-01 at 11:34, David Parker wrote:
I am not currently working on z/OS, and don't have access to a z/OS
environment, but I did a little work with getting OpenLDAP ported to
z/OS at my previous company. I assume you mean Unix System Services
(USS) under z/OS, rather than zLinux. Since zLinux is essentially Suse
ported to the Z architecture, I don't imagine there would be major
issues there.
Given the fact that there is a S390 emulator out there (I've played with
it a bit, it's pretty cool) is there a reasonable chance of them
contributing to upgrade / rewrite it into a z/OS emulator? Such a thing
would be useful for development.