Re: Questions on Informix
On Aug 17, 12:05 am, Fernando Nunes <s...@domus.online.pt> wrote: > Mark Jamison wrote: > > Hi Neil and Andrew, > > > Actually, and I'm sure Madison will correct me if I'm wrong, > > > but I'm pretty sure that if both boxes are HP-UX 11.23, The primary can > > be an Itanium box and the Secondary can be a PA-RISC box. > > > IDS and HP worked on this. > > > Of course if you use ER, or the newer 11.10 Replication, this is > > possible as well. > > > Now the caveat will be that in HDR the engine versions must be identical. > > > ----- Original Message ---- > > From: Neil Truby <neil.tr...@ardenta.com> > > To: informix-l...@iiug.org > > Sent: Thursday, August 16, 2007 10:15:42 AM > > Subject: Re: Questions on Informix > > > <andr...@cornasys.com> wrote in message > >news:1187276793.520647.132750@d55g2000hsg.googlegroups.com... > > > > 3) Is it possible to run Infomrix on HP-UX on Integirty servers at the > > > production site, and HP-UX on HP9000 servers at the DR site? > > > Does Integrity use the Itanic chipset? In which case, no, you can't in a > > supported fashion mix chipsets between live and DR (using a traditional DR > > methodology), and it probably wouldn't work either. > > This is surely one area that should be improved, although the technical issues > are very real. I imagine the biggest one is the the default page size of the > platform. Otherwise, it wouldn't be the first time a byte would travel the > cyberspace into a completely different world :) > > This would make wonders for certain migrations... This also applies to > backup/restore... > > Regards. > > -- > Fernando Nunes > Portugal > > http://informix-technology.blogspot.com > My email works... but I don't check it frequently... Regarding backup/restore, some innovation could come from DB2 LUW world, perhaps. There it is possible to restore on Windows from backup made on Linux/Intel, of from AIX to Solaris. But, probably due to Little-Big-Endian issues it is not possible to use backup made on AIX to restore on Windows. And the backup engine and restore engine do not have to be the very same release. Darko Krstic
darko wrote: > On Aug 17, 12:05 am, Fernando Nunes <s...@domus.online.pt> wrote: >> Mark Jamison wrote: >>> Hi Neil and Andrew, >>> Actually, and I'm sure Madison will correct me if I'm wrong, >>> but I'm pretty sure that if both boxes are HP-UX 11.23, The primary can >>> be an Itanium box and the Secondary can be a PA-RISC box. >>> IDS and HP worked on this. >>> Of course if you use ER, or the newer 11.10 Replication, this is >>> possible as well. >>> Now the caveat will be that in HDR the engine versions must be identical. >>> ----- Original Message ---- >>> From: Neil Truby <neil.tr...@ardenta.com> >>> To: informix-l...@iiug.org >>> Sent: Thursday, August 16, 2007 10:15:42 AM >>> Subject: Re: Questions on Informix >>> <andr...@cornasys.com> wrote in message >>> news:1187276793.520647.132750@d55g2000hsg.googlegroups.com... >>> > 3) Is it possible to run Infomrix on HP-UX on Integirty servers at the >>> > production site, and HP-UX on HP9000 servers at the DR site? >>> Does Integrity use the Itanic chipset? In which case, no, you can't in a >>> supported fashion mix chipsets between live and DR (using a traditional DR >>> methodology), and it probably wouldn't work either. >> This is surely one area that should be improved, although the technical issues >> are very real. I imagine the biggest one is the the default page size of the >> platform. Otherwise, it wouldn't be the first time a byte would travel the >> cyberspace into a completely different world :) >> >> This would make wonders for certain migrations... This also applies to >> backup/restore... >> >> Regards. >> >> -- >> Fernando Nunes >> Portugal >> >> http://informix-technology.blogspot.com >> My email works... but I don't check it frequently... > > Regarding backup/restore, some innovation could come from DB2 LUW > world, perhaps. There it is possible to restore on Windows from backup > made on Linux/Intel, of from AIX to Solaris. But, probably due to > Little-Big-Endian issues it is not possible to use backup made on AIX > to restore on Windows. And the backup engine and restore engine do not > have to be the very same release. I believe the Little-Big-Endian could be solved... Performance would suffer, but I would gladly accept it. The real issue in Informix, could be the different page sizes... Everything is a page. But a page can be 2K or 4K. Transform 2K pages into 4K pages or vice-versa would be a nightmare... Regarding the need to have the same exact version I would also accept it peacefully.. Of course there are probably a lot of issues that I'm not aware... Regards. -- Fernando Nunes Portugal http://informix-technology.blogspot.com My email works... but I don't check it frequently...