ACTIVE ACTIVE CLUSTER

[meekrob]

Hi ,

i have 2 nodes MC service guard cluster , but i need to mount one file system on node1 and an other file system on node 2 , which file can i modify to configure it , ?

[Steven E. Protter]

Shalom,

Serviceguard will work with a product like Oracle RAC and provide active-active clustering.

I'm sure there are other products that are designed to work this way.

If you try it with a web server or regular oracle server, you will crash one or both systems and corrupt your data.

Consider redesigning your LVM structure to provide multiple volume groups and logical volumes. Then for some simple apps like web services for example you can use ssh or rsync to maintain two copies of the data and have some kind of active-active structure.


SEP

[Mel Burslan]

As your question did not make much sense in the terms of serviceguard, I am wondering what these filesystems are doing ?

If you are already running serviceguard on these two nodes, please post the output of

cmviewcl -v

command here and try to explain what you are trying to implement with two filesystems mounted on two different nodes and I am sure you will get more help

[freddy_21]

I want to know, about your new file system.

1. do you have 2 new vg with 2 file system or 1 new vg with 2 file system?
if do you have 2 new vg with 2 file system, it is possible.
if only one new vg with 2 file system, it is not possible.
2. Do you add new file system at existing volume group?
You must carefully, with vg doest it belong to, is it package one or package two

i think your cluster have 2 package, where one package run at server one and other package run at server two.

You must know the new file system use for package one or package two.

you can edit at:
1. cluster ascii file ( /etc/cmcluster)
You need compile cluster ascii file after changes.
2. Control file from your package 1 or package 2 depend on your new file system. where do you want to add. After changes dont forget to copy the control script at both server.
No need compile the control file.


thanks
freddy