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07-27-2005 02:46 AM
07-27-2005 02:46 AM
i have 2 hp rp5470 servers in which mc/service guard is configured and running now.
We have planned to change the ip address of all servers here how do I do it?
Please help me with the procedures.
.
Thank you.
Solved! Go to Solution.
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07-27-2005 03:11 AM
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07-27-2005 03:14 AM
07-27-2005 03:14 AM
Re: HP cluster ip chaning procedure
It requires cluster outage.
If I am correct,
Create ascii file from running configuration
#cmgetconf
Modify ascii file for new IP adresses
Change the system IP addresses (use sam or set_parms)
Halt the cluster after halting all packages
#cmhaltpkg
#cmhaltcl
Check/apply the new config
#cmcheckconf
#cmapplyconf
If you are changing the IP to new network address (subnet), you may need to modify the package IP as well. Make sure your applications work after you change the IP.
Regds
TT
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07-27-2005 03:21 AM
07-27-2005 03:21 AM
Re: HP cluster ip chaning procedure
go to /etc/cmcluster find your cluster config file. If you are not sure which one it is, create a new one :
cmgetconf -c MyClusterA MyClusterA.config
and edit this file and find the 2 nodes IP addresses and change these addresses to the new values.
then if you are changing the IP address of the relocatable packages descend into the package directories and find the .cntl files for each package and edit this file. Look for string "IP" in capital letters. You will find where the IP address is set. Change these values to the new addresses.
go back to /etc/cmcluster and run these commands:
cmcheckconf -C MyClusterA.config -P Pkg1/Pkg1.config -P Pkg2/Pkg2.config
if the command did not barf any error messages, then
cmapplyconf -f -C MyClusterA.config -P Pkg1/Pkg1.config -P Pkg2/Pkg2.config
After all is said and done, make sure you have the same filesets under /etc/cmcluster directories on both cluster member nodes. If not, make sure you manually copy the latest configuration to both nodes to avoid an inconsistency in the future.
Needless to say, your cluster must be down while you do all this work.
UNIX because I majored in cryptology...
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09-20-2006 07:11 PM
09-20-2006 07:11 PM