same instance name, same machine different version

Hi All, I have a machine which hosts an instance (xxxx), I've noticed, there are 2 installed Informix version on the same machine. Also, it hosts, the same instance (xxxx) with the same ROOTDBS. Question is: Can i make the instance xxxx become online for both version?... 9.4.UC2 and 9.4.UC6. I'm getting shared memory already exists if i want to startup the other one... Please advise. Thanks,

Hi Jack, It looks like an upgrade was done from UC4 to UC6. I don't think that you should try to start up two instances referencing the same rootdbs Regards > To: ids@iiug.org > From: informix2009@gmail.com > Subject: same instance name, same machine different version [17287] > Date: Fri, 2 Oct 2009 04:05:52 -0400 > > Hi All, > > I have a machine which hosts an instance (xxxx), I've noticed, there are 2 > installed Informix version on the same machine. Also, it hosts, the same > instance (xxxx) with the same ROOTDBS. > > Question is: > > Can i make the instance xxxx become online for both version?... 9.4.UC2 and > 9.4.UC6. I'm getting shared memory already exists if i want to startup the > other one... > > Please advise. > > Thanks, > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > _________________________________________________________________ More than messages–check out the rest of the Windows Live™. http://www.microsoft.com/windows/windowslive/

Hi, you can't run the instance twice (at the same time). Depending on the different versions (patch levels) you can switch between the two versions, for example: export INFORMIXDIR=/informix/ids94uc2oninit... onmode -kexport INFORMIXDIR=/informix/ids94uc6 oninit Switching from lower to higher versions/patch leves should work always, switching back could be a problem (if sysmaster was changed or new functionalities where introduced) - swichting back vom higher to lower versions (e.g. 9.4 -> 9.3 or even 9.4 -> 7.3) is impossible. Regards, Andreas Kutsche ------------------------------------------- SPAR Österreichische Warenhandels-AG Hauptzentrale A - 5015 Salzburg, Europastrasse 3 FN 34170 a Tel: +43 662 4470 24223 Mobile: +43 664 6259575 E-Mail: Andreas.KUTSCHE@spar.at Internet: http://www.spar.at Wichtiger Hinweis: Der Inhalt dieser E-Mail kann vertrauliche und rechtlich geschützte Informationen, insbesondere Betriebs- oder Geschäftsgeheimnisse, enthalten, zu deren Geheimhaltung der Empfänger verpflichtet ist. Die Informationen in dieser E-Mail sind ausschließlich für den Adressaten bestimmt. Sollten Sie die E-Mail irrtümlich erhalten haben so ersuchen wir Sie, die Nachricht von Ihrem System zu löschen und sich mit uns in Verbindung zu setzen. Über das Internet versandte E-Mails können leicht manipuliert oder unter fremdem Namen erstellt werden. Daher schließen wir die rechtliche Verbindlichkeit der in dieser Nachricht enthaltenen Informationen aus. Der Inhalt der E-Mail ist nur rechtsverbindlich, wenn er von uns schriftlich bestätigt und gezeichnet wird. Sollte trotz der von uns verwendeten Virus-Schutzprogramme durch die Zusendung von E-Mails ein Virus in Ihre Systeme gelangen, haften wir nicht für evtl. hieraus entstehende Schäden. Wir danken für Ihr Verständnis. Important notice: The contents of this e-mail may contain confidential and legally protected information that is in particular related to operational and trade secrets, which the recipient is obliged to treat as confidential. The information in this e-mail is made available exclusively for use by the addressee. In the event that the e-mail may have been sent to you in error, we would ask you to kindly delete this communication from your system and to contact us. E-mails sent via the Internet can be easily manipulated or sent out under someone else's name. We therefore do not accept legal liability for the information contained in this communication. The contents of the e-mail are only legally binding if they have been confirmed and signed by us in writing. If, in spite of our using Antivirus protection software, a virus may have penetrated your system through the sending of this e-mail, we do not accept liability for any damage that may possibly arise as a result of this. We trust that you appreciate our position. ------------------------------------------- -----Ursprüngliche Nachricht----- Von: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] Im Auftrag von JACK PAPA Gesendet: Freitag, 2. Oktober 2009 10:06 An: ids@iiug.org Betreff: same instance name, same machine different version [17287] Hi All, I have a machine which hosts an instance (xxxx), I've noticed, there are 2 installed Informix version on the same machine. Also, it hosts, the same instance (xxxx) with the same ROOTDBS. Question is: Can i make the instance xxxx become online for both version?... 9.4.UC2 and 9.4.UC6. I'm getting shared memory already exists if i want to startup the other one... Please advise. Thanks, ******************************************************************************* Forum Note: Use "Reply" to post a response in the discussion forum.

No, you cannot have two different engine instances looking at the same disk space, even if they were the same version. The ONLY exception is if you have IDS 11.10 or later and the second instance is configured as a MACH11 SDS (Shared Disk Secondary) instance. Art Art S. Kagel Oninit (www.oninit.com) IIUG Board of Directors (art@iiug.org) Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on my employer, Oninit, the IIUG, nor any other organization with which I am associated either explicitly or implicitly. Neither do those opinions reflect those of other individuals affiliated with any entity with which I am affiliated nor those of the entities themselves. On Fri, Oct 2, 2009 at 4:05 AM, JACK PAPA <informix2009@gmail.com> wrote: > Hi All, > > I have a machine which hosts an instance (xxxx), I've noticed, there are 2 > installed Informix version on the same machine. Also, it hosts, the same > instance (xxxx) with the same ROOTDBS. > > Question is: > > Can i make the instance xxxx become online for both version?... 9.4.UC2 and > 9.4.UC6. I'm getting shared memory already exists if i want to startup the > other one... > > Please advise. > > Thanks, > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > --0023545bd6589bbf6c0475249e0d