topic Re: MCSG FAILOVER in Operating System - HP-UX

MCSG FAILOVER

Ganesh Balraman — Mon, 09 Aug 2010 03:02:48 GMT

Hi All!

How to move running pacakge to secondary node without any dusruption in service?

How to do pataching on MCSG Clusters , is there any ITRC Doc for it?

Thanks,

Re: MCSG FAILOVER

AnthonySN — Mon, 09 Aug 2010 06:47:48 GMT

chk this link

http://www.darncool.com/darnpedia/index.php5/HP-UX:_Patch_Procedure_for_MC/SG_Servers

Re: MCSG FAILOVER

VVS — Mon, 09 Aug 2010 07:10:52 GMT

>>How to move running pacakge to secondary node without any dusruption in service?

1. Halt the package on the primary node:
cmhaltpkg â n
2. Run the package on the secondary node:
cmrunpkg â n
3. Enable the package:
cmmodpkg â e

How to do pataching on MCSG Clusters , is there any ITRC Doc for it?

http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c02056246/c02056246.pdf

Regards,
VVS

Re: MCSG FAILOVER

Ganesh Balraman — Mon, 09 Aug 2010 07:12:02 GMT

Hi

Could not able to open the above link.

Please help.

Re: MCSG FAILOVER

Dennis Handly — Mon, 09 Aug 2010 11:08:13 GMT

>Could not able to open the above link

Which, both work for me.

Re: MCSG FAILOVER

Stephen Doud — Mon, 09 Aug 2010 13:33:29 GMT

Ganesh,

You ask:
"How to move running pacakge to secondary node without any dusruption in service?"

What disruption of service are you referring to?

If you are referring to the application the package is running, moving that package to another server WILL cause an interruption of service because
a) the new server must activate resources the application will need, including fsck, mount etc.
b) application recovery time if any
c) users will have to connect to the new server to access the application.

Re: MCSG FAILOVER

Viktor Balogh — Tue, 10 Aug 2010 22:22:04 GMT

Hi Ganesh,

You just can't switch the package _without_ any disruption to the service. But, to speed up the package switch, you can do the halt and the start phase from the command line like this:

# cmhaltpkg PKGNAME; cmrunpkg -n ONWHICHNODE PACKAGENAME

This way the start will be initiated right after the stop.

Regards,
Viktor