Re: poor man's HA
-----Original Message-----
From: rtsujimoto_consultant-o5aXnY8shxg1lxrb1LaMpA@public.gmane.org [mailto:rtsujimoto_consultant-o5aXnY8shxg1lxrb1LaMpA@public.gmane.org]
Sent: Tuesday, November 18, 2008 12:09 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+2wyY2g16FtwPuJ0ROkVbw@public.gmane.org
Subject: Re: poor man's HA
Good point. But, one of our unix admins believes Ignite will recreate the symbolic links.
Richard Tsujimoto
Consultant
IT Infrastructure
Canon U.S.A., Inc.
( Office: 516-328-5797
2 Fax: 516-328-4588
* Email: rtsujimoto_consultant <at> cusa.canon.com
John Scott <John.Scott-0GIn5MilrQ2qGRdYhX/q1q6+1OQI6iwo@public.gmane.org>
Sent by: MQSeries List <MQSERIES-0lvw86wZMd9k/bWDasg6fz0nGCXTTDWa@public.gmane.orgAC.AT>11/18/2008 12:05 PM
MQSeries List <MQSERIES-0lvw86wZMd9k/bWDasg6f+2wyY2g16FtwPuJ0ROkVbw@public.gmane.org>
MQSERIES-0lvw86wZMd9k/bWDasg6fw@public.gmane.orgIEN.AC.AT Re: poor man's HA
If you have MQ stuff in /usr/bin et al, you may have to use "crtmqlnk" after restoring as these would be missing from a fresh OS install.
Regards
John Scott
IBM Certified Specialist - MQSeries
Home Retail Group (Infrastructure Services - Middleware)
-----Original Message-----
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+2wyY2g16FtwPuJ0ROkVbw@public.gmane.org] On Behalf Of rtsujimoto_consultant-o5aXnY8shxg1lxrb1LaMpA@public.gmane.org
Sent: 18 November 2008 13:46
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+2wyY2g16FtwPuJ0ROkVbw@public.gmane.org
Subject: Re: poor man's HA
I misunderstood my unix admin's goal, which was to put everything, MQ, MQ binaries,apps, etc. on SAN, except the (obviously) the OS. Then, when the primary fails, he would re-ignite the OS to the standby server, reconnect all SAN drives, bind the IP address and so forth. It sounds like it should work.
Richard Tsujimoto
Consultant
IT Infrastructure
Canon U.S.A., Inc.
( Office: 516-328-5797
2 Fax: 516-328-4588
* Email: rtsujimoto_consultant-v6yAGW1xkE8@public.gmane.orgnon.com
"Biedinger, Robert E {PBSG}" <Robert.E.Biedinger-syj8/5JD3nk@public.gmane.org>
Sent by: MQSeries List <MQSERIES-0lvw86wZMd9k/bWDasg6f+2wyY2g16FtwPuJ0ROkVbw@public.gmane.org>11/17/2008 06:39 PM
MQSeries List <MQSERIES-0lvw86wZMd9k/bWDasg6f+2wyY2g16FtwPuJ0ROkVbw@public.gmane.org>
MQSERIES <at> LISTSERV.MEDUNIWIEN.AC.AT Re: poor man's HA
Not sure I am clear on if there is a post-ignite step of installing base MQ, then fix packs on local disk, otherwise it wouldn't matter that SAN is there or not. Besides CCSID tables you won't have MQ binaries. I might be missing something else, but this sounds more DR than HA.
Robert Biedinger
Enterprise Integration Infrastructure
PBSG Foundational Services
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+2wyY2g16FtwPuJ0ROkVbw@public.gmane.org] On Behalf Of rtsujimoto_consultant-o5aXnY8shxg1lxrb1LaMpA@public.gmane.org
Sent: Monday, November 17, 2008 2:23 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+2wyY2g16FtwPuJ0ROkVbw@public.gmane.org
Subject: poor man's HA
Our unix admin proposed a poor man's HA for server hosting MQ. If we setup the filesystems as per /MQHA (e.g. critcal filesystems on SAN) and the server failed, our unix admin wants to re-Ignite the server to a standby server. Ignite only restores the OS. So, if we don't restore the local MQ filesystems, will MQ start. I suspect not because the original local disk would have the CCSID tables and error logs. Any other reasons why it might not work?
Richard Tsujimoto
Consultant
IT Infrastructure
Canon U.S.A., Inc.
( Office: 516-328-5797
2 Fax: 516-328-4588
* Email: rtsujimoto_consultant-4rFW8h42HsvSUeElwK9/Pw@public.gmane.org
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