Changing Cluster Alias IP Address

[Manish PATHAK_2]

Hi,

I want to change Cluster Alias IP Address on my ES45..

for ex. current cluster alias name and ip address is server1server2 (1.1.1.100) & i want to change it to my1my2 (1.1.2.100) what will be the procedure to do it...

Regards
Manish

[Venkatesh BL]

Did you try the 'Search' function of this forum? I see several hits on the topic that may be useful...

[Ajay Agarwal]

1) Create a file with entry

clubase:
cluster_name=my1my2

2) Run following cmd from each member:

sysconfigdb -m -f "file_you_created" clubase

3) Update following files with new name:
/etc/hosts
/etc/hosts.equiv

4) Add new name in /.rhosts file

5) Shutdown entire cluster and boot each member

6) Remove old name from /.rhosts

Changing IP:

1) Edit /etc/hosts file and update the IP.
2) Reboot all the nodes one by one.

[Ivan Ferreira]

Acording to the cluster administrator manual, the host name cannot be changed, you should remove the member and add it back to change the host name. See section Section 5.12 of the cluster administration manual:

Changing the Member Name, IP Address, or Cluster Interconnect Address

To change the member name, member IP address, or cluster interconnect address, remove the member from the cluster and then add it back in with the desired member name or address. Before you do this, make sure that the cluster will not lose quorum and that CAA restricted placement policies are not affected.

[Arch_Muthiah]

manish,

You need to modify all these files with your new clu alias and IP address.
/etc/hosts
/etc/hosts.equiv
/.rhosts file

And if this cluster has been configured as an NFS server, then you will have made entry in /etc/exports.aliases as NFS client will also look into this file.

also if a noncluster host wants access any clu host, then the .rhosts file of that non clu host also shoudl include modified clu alias name.


Archunan

[Shardha]

Dear manish,

Please find the best practice for changing the alias name.

Shardha

[Manish PATHAK_2]

Hi All,

Thanks for the response.

Problem is solved,i forget to update the status,thanks to the notification system to remind me,

or changing the alias ip we need to modify the /etc/hosts,/etc/hosts.equiv file and after reboot it will be changed.

For one of the resonse regarding hostname i would like to put my view that it is possible to change the cluter nme as well as individual member name.

Regards
Manish PATHAK

[Manish PATHAK_2]

updating /etc/hosts file and reboot willchange the alias ip address.

Regards
Manish Pathak