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Re: [Linux-cluster] redhat cluster - veritas

Hello Konrad,
LVM mirroring has some stuff to be aware of before using it in production:
1) till now, no live extension, you need to break the mirror before growing it
2) the mirror metadata has to reside on a 3rd disk if you do not want to resynchronise entirely your mirror at boot time, if it is not a problem for you, you can put the metadata in memory (lost at reboot) 
I'm not sure anyone has already experienced VX storage foundation on top of RHCS, I'm ready to bet you would be the first.
2009/7/22, AZZOPARDI Konrad <azzopardi eib org>:
Dear all,
I am new to RedHat cluster and I am looking into different architectural models. In my workplace we have two datacentres with a SAN in each DC. Now we do not have the luxury of SAN replication so I was looking into doing this using host based mirroring. From what I  read, the new RedHat 5.3 supports CLVM host based mirrors but to be honest I am quite reluctant to use something so new and I cannot find any references of anyone using it in PROD, which leads me to another question. Can RedHat cluster work with other volume managers such as veritas. Probably the related question would be whether GFS can with veritas volume manager.
Thank you for any responses.

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