Replication failure Q

I just discovered that IDS 11.10 replication has a significantly different operational feature than the old 9 days. In particular when the PRIMARY fails we used to be able to issue an "onmode -d standard" to put the secondary into production. We have done this a number of times on 9.3. When we installed 11.10 we can not longer do this. We get a messages after doing the Onmode -d standard (on secondary) saying: DR: Unable to change server type In the online log I see: DR: DR should be turned off for secondary to standard change. This message is amusing since I think onmode -d standard is how you turn off replication. At least in the past. Today I researched and played. I see the onmode -d operations for the secondary's. Then I discovered that I can do the onmode -d standard on the Primary and THEN do the onmode -d standard on the secondary. But that is pretty much useless in the event of a real hardware failure on the primary. I do not see any new "turn off replication" commands but I see a mess of other new commands for RSS and other fun stuff. How do I promote the secondary into standard mode if the primary is down? The 11.10 manual seems to imply about the same thing as the 9.3 manual so I am confused. If no-one has any ideas I will report this next week to Informix Support as a possible bug. IDS 11.10fc1W5+ on Sun Solaris 10. Thanks,,, ,,,Tim Tim Ertl 413-442-9000 x6211 This email was sent with Microsoft Outlook. If you see a winmail.dat or have problems reading this email please let me know and I will resend using a RFC compliant mail program. Thanks,,,Tim

When the primary is still up and connected to the secondary, then HDR i= s on. If you want to split the HDR pair into two independent servers, then yo= u would need to first run 'onmode -d standard' on the primary and then on= the secondary. If you want to make the old secondary into a standard node after the primary has failed, then you can run 'onmode -d standard' on the second= ary as HDR should be off when the primary has failed. If you want to simply switch the old secondary into the primary, as in = the case of a failure of the old primary, then I would suggest using the 'onmode -d make primary ... <force> command. = "Tim Ertl" = <tim@lmrgroup.com = > = To Sent by: ids@iiug.org = ids-bounces@iiug. = cc org = Subj= ect Replication failure Q [15356] = 03/28/2009 09:57 = AM = = = Please respond to = ids@iiug.org = = = I just discovered that IDS 11.10 replication has a significantly differ= ent operational feature than the old 9 days. In particular when the PRIMARY= fails we used to be able to issue an "onmode -d standard" to put the secondary into production. We have done this a number of times on 9.3. When we installed 11.10 we can not longer do this. We get a messages af= ter doing the Onmode -d standard (on secondary) saying: DR: Unable to change server type In the online log I see: DR: DR should be turned off for secondary to standard change. This message is amusing since I think onmode -d standard is how you tur= n off replication. At least in the past. Today I researched and played. I see the onmode -d operations for the secondary's. Then I discovered that I can do the onmode -d standard on = the Primary and THEN do the onmode -d standard on the secondary. But that i= s pretty much useless in the event of a real hardware failure on the prim= ary. I do not see any new "turn off replication" commands but I see a mess o= f other new commands for RSS and other fun stuff. How do I promote the secondary into standard mode if the primary is down? The 11.10 manual s= eems to imply about the same thing as the 9.3 manual so I am confused. If no-one has any ideas I will report this next week to Informix Suppor= t as a possible bug. IDS 11.10fc1W5+ on Sun Solaris 10. Thanks,,, ,,,Tim Tim Ertl 413-442-9000 x6211 This email was sent with Microsoft Outlook. If you see a winmail.dat or= have problems reading this email please let me know and I will resend using = a RFC compliant mail program. Thanks,,,Tim ***********************************************************************= ******** Forum Note: Use "Reply" to post a response in the discussion forum. =

If the primary failed, then replication WOULD be off from the primary and the onmode -d standard or onmode -d primary would have worked fine on the secondary. Because of the added functionality of the MACH11 SDS and RSS servers in 11.10 and later, you simply can no longer FORCE a secondary into standalone mode while the primary is still in contact with it and in primary mode. 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 Sat, Mar 28, 2009 at 10:57 AM, Tim Ertl <tim@lmrgroup.com> wrote: > I just discovered that IDS 11.10 replication has a significantly different > operational feature than the old 9 days. In particular when the PRIMARY > fails we used to be able to issue an "onmode -d standard" to put the > secondary into production. We have done this a number of times on 9.3. > > When we installed 11.10 we can not longer do this. We get a messages after > doing the Onmode -d standard (on secondary) saying: > DR: Unable to change server type > > In the online log I see: > DR: DR should be turned off for secondary to standard change. > > This message is amusing since I think onmode -d standard is how you turn > off > replication. At least in the past. > > Today I researched and played. I see the onmode -d operations for the > secondary's. Then I discovered that I can do the onmode -d standard on the > Primary and THEN do the onmode -d standard on the secondary. But that is > pretty much useless in the event of a real hardware failure on the primary. > > I do not see any new "turn off replication" commands but I see a mess of > other new commands for RSS and other fun stuff. How do I promote the > secondary into standard mode if the primary is down? The 11.10 manual seems > to imply about the same thing as the 9.3 manual so I am confused. > If no-one has any ideas I will report this next week to Informix Support as > a possible bug. > > IDS 11.10fc1W5+ on Sun Solaris 10. > Thanks,,, > > ,,,Tim > > Tim Ertl > 413-442-9000 x6211 > > This email was sent with Microsoft Outlook. If you see a winmail.dat or > have > problems reading this email please let me know and I will resend using a > RFC > compliant mail program. > Thanks,,,Tim > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > --00163649942bd5677d046637c4b5