Re: [U2] Is replication across versions a possibility?
Yes, going from Irix (MIPS?) to Linux on X86 will most likely require fnuxi to be run on everything after the transfer. Since the fnuxi process would run on the newer machine, it would probably still be much faster to run an rsync, then find - fnuxi script. Just be very carefull with rsync! It's a sharp knife. Flip around the systems and you could step on the live account with test data Do some testing with a couple of small directories until your comfortable with it. --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Is replication across versions a possibility?
Replication was incredibly slow before version 10 and had a large impact on file updates. That wouldn't be too bad for our case here when it's a one off, it'd *have* to be faster than plugging the backups over the small pipe we've got, but good to know. We have replication running between Windows and Linux versions in test without problems. Due to limited downtime windows we are planning to switch systems over two weekends with replication running in between. Many thanks for your input, I would love to hear how well that works for you when you go with it -- we're looking atour cutover being sometime in May so I have a goodly amount of time to experiment. -- Peter Ivanick Sr. Programmer/Analyst School of Veterinary Medicine, University of Pennsylvania Email: [EMAIL PROTECTED] Phone: 215.573.2306Fax: 215.573.8777 http://www.vet.upenn.edu/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Is replication across versions a possibility?
[EMAIL PROTECTED] wrote: > > Rsync, that's an interesting idea I hadn't thought of, thanks very much > for your input, I'll definitely be trying that out shortly. > Just be careful! What hardware are your linux and irix systems running on? You may need to use fnuxi. Using fnuxi has nothing to do with Windows/Unix and everything to do with byte order. It's just that most Unix runs on (sensible) little-endian boxes and Windows runs on big-endian Intel so everybody assumes its a Windows/Unix thing. Cheers, Wol --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Is replication across versions a possibility?
That's the way we're currently testing it, uvbackup & uvrestore, but it adds some additional delays in that the IRIX system is configured rather, um, funkily, and those bits need to be recreated after the system is in place on the new box. Also, unfortunately, we've got a good bit of data & programming (about 6 GB total although I assume quite a lot of it is cruft, but we're unlikely to do any massive cleanup before the transfer) and only a single 10mb NIC in the IRIX box, so I'm exploring options for anything to goose the process even a little. Any particular reason you're leery of replicating, is it this particular suituation or replication in general? Rsync, that's an interesting idea I hadn't thought of, thanks very much for your input, I'll definitely be trying that out shortly. Don Kibbey wrote: Upgrade via replication sounds like a receipe for lots of "wailing and knashing of teeth". Have a look at uvbackup and uvrestore. Or read up on rsync as a means to get the data from one machine to another. If it were me, I think I'd do a uvbackup to a network mounted filesystem (samba or nfs) and then do a uvrestore from that disk to the final location. Doing a test conversion would allow you to get an idea of how long it will take and should uncover any hidden gotchas in moving from Irix to Linux. -- Peter Ivanick Sr. Programmer/Analyst School of Veterinary Medicine, University of Pennsylvania Email: [EMAIL PROTECTED] Phone: 215.573.2306Fax: 215.573.8777 http://www.vet.upenn.edu/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
RE: [U2] Is replication across versions a possibility?
Replication was incredibly slow before version 10 and had a large impact on file updates. We have replication running between Windows and Linux versions in test without problems. Due to limited downtime windows we are planning to switch systems over two weekends with replication running in between. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter Ivanick Sent: 04 March 2005 13:38 To: u2-users@listserver.u2ug.org Subject: [U2] Is replication across versions a possibility? Hola - We've got a 9.5 system running on Irix that we're going to be upgrading to 10.1.4 running on Linux on new hardware, and it strikes me that replication might be a good way to minimize system downtime while we do the upgrade. Any idea whether there would be any additional hitches in doing replication across platforms & versions? We would of course have fnuxied and otherwise modified the files prior to the replication being set to go. Any thoughts (or alternative strategies to minimize system downtime during an upgrade) would be greatly appreciated. -- Peter Ivanick Sr. Programmer/Analyst School of Veterinary Medicine, University of Pennsylvania Email: [EMAIL PROTECTED] Phone: 215.573.2306Fax: 215.573.8777 http://www.vet.upenn.edu/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ The information contained in this email is strictly confidential and for the use of the addressee only, unless otherwise indicated. If you are not the intended recipient, please do not read, copy, use or disclose to others this message or any attachment. Please also notify the sender by replying to this email or by telephone +44 (0)20 7896 0011 and then delete the email and any copies of it. Opinions, conclusions (etc.) that do not relate to the official business of this company shall be understood as neither given nor endorsed by it. IG Markets Limited and IG Index Plc are authorised and regulated by the Financial Services Authority and, in Australia, by the Australian Securities and Investments Commission. --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Is replication across versions a possibility?
Upgrade via replication sounds like a receipe for lots of "wailing and knashing of teeth". Have a look at uvbackup and uvrestore. Or read up on rsync as a means to get the data from one machine to another. If it were me, I think I'd do a uvbackup to a network mounted filesystem (samba or nfs) and then do a uvrestore from that disk to the final location. Doing a test conversion would allow you to get an idea of how long it will take and should uncover any hidden gotchas in moving from Irix to Linux. --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
