>What is your definition of "HA Cluster"? >Does your "HA Cluster" work off of the same physical data or data that is >replicated/syncronized? Is this a simple website where data is static or >is the application more dynamic? And there are more questions.... >You have asked a "Yes or No" question where the information supplied is >too vague to give a "Yes or No" answer. Hi Ed, OK I guess I should clarify what I want to do. I want to set up two servers the way I would set up a RAID 1 configuration for SCSI disks on a single server, only instead of mirroring data on two disks, I want to mirror two servers. I want two mirrored servers, identical data on both servers, so if one goes down the other takes over and there is no interruption in web service while the down server is being repaired. Heres another catch - I want both servers to have a RAID 1 config. My one server has that now. So theoretically three hard drives could crash, or one motherboard, or one RAID 1 controller card, etc., and she cluster would still function. Another thing I want to do is have one tape backup for the cluster backing up data, on either server, it would not matter which server the tape backup is a slave to because the data would be identical. I'm running an e-commerce server now and the server has an XML based e-commerce software application with multiple product databases for the on line stores, runs secure sites with Thawte SSL certificates. PHP/MySQL discussion forums, Perl Stats software, etc. Maybe some streaming video later. Is this even possible or a pipe dream? DB -- Psyche-list mailing list Psyche-list@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/psyche-list