I did a migration from SGI IRIX (RISC CPU) to RH AS 3 about 6 years ago. I've also done 2 other migrations from earlier to later versions of UV and the underlying OS just for hardware upgrades. The only differences with the OS change were:
1) As others have mentioned, I had to run fnuxi since I did an OS-level backup/restore. This was trivial, though. I just wrote a script that did the restore and executed "fnuxi *" in all the UV directories immediately afterward 2) I had to modify a number of shell scripts due to subtle changes in some of the OS-level command options. Most notably the "echo" command. There are other issues to consider that I always run into with any UV upgrade, regardless of platform. We have a number of customized VOC entries that differ from the installed versions and get wiped out by a UV upgrade. I have a file named VOC.MOD that I keep on the OS partition where copies of all the modified entries are stored. I copy that file onto the new platform and copy its entries into the UV VOC after the upgrade (and each test run). I keep similar files for any BPs and PROCs that need modification to work correctly on the new platform. It's typically utilities that end up in here. IBM changed the number of digits in spooler file IDs last time, for example, and it broke a number of our custom spooler utilities. It's hard for me to give a difficulty rating somewhere between easy and really hard. I guess I would say it's easy but time consuming. We have a different batch process for the first 3 weekends of each month as well as a month-end process. Testing each of those involves wiping out the UV data on the new server, restoring, and running the batch process (I change the SP.ASSIGN command so all the spooler files go to a dummy queue). When something breaks mid-way, I have to fix it and start all over. There's also a fairly long checklist of user applications that have to be tested. None of this is rocket science, but it does take quite a bit of time. I've done all the upgrades solo, and IIRC, it typically takes me a little over a month. Hope that helps. -John > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Oaks, Harold > Sent: Tuesday, October 06, 2009 9:38 AM > To: U2 Users List > Subject: [U2] hpux to linux > > We have Rocket's Universe 10.2 over hpux 11.11 but are > considering moving to a linux box. Has anyone ported a U2 app > from hpux to linux? I am trying to estimate for management > how long such a porting might take. > Just an opinion would be helpful, like 'easy', 'medium', > 'hard', 'really hard'. > > Thanks- > Harold Oaks > Clark County > > > > This e-mail and related attachments and any response may be > subject to public disclosure under state law. > _______________________________________________ > U2-Users mailing list > [email protected] > http://listserver.u2ug.org/mailman/listinfo/u2-users > _______________________________________________ U2-Users mailing list [email protected] http://listserver.u2ug.org/mailman/listinfo/u2-users
