How To make a Fail Over Cluster (FOC) with RedHat AS-4.

Chris St. Pierre stpierre at NebrWesleyan.edu
Tue Jan 3 14:37:27 UTC 2006


For imaging, use kickstart (which is awesome beyond words) or, if you
have lots of custom stuff installed, tar.  Boot off CD, mount an NFS
share, and tar / to it.  Repeat in reverse for the target system.

For simple failover, Linux-HA would probably be an easier (and
cheaper) setup than GFS + Cluster Suite.  You could also use Lustre as
an alternative to GFS, if low cost is more important that enterprise
support.

Chris St. Pierre
Unix Systems Administrator
Nebraska Wesleyan University

On Tue, 3 Jan 2006, Tom Callahan wrote:

>GFS and Cluster Suite is your solution. Check with RedHat.
>
>Thanks,
>
>Tom Callahan
>TESSCO Technologies
>(443)-506-6216
>callahant at tessco.com
>
>A real engineer only resorts to documentation when the keyboard dents on the forehead get too noticeable.
>
>
>
>giri sagar wrote:
>
>>Hi There,
>>
>>SUB: How To make a Fail Over Cluster (FOC) with RedHat AS-4.
>>
>>I was looking for any kind suggestions, help and guidance.....
>>
>>I have two high end servers with exactly same Hardware configuration, loaded
>>with redhat AS-4 (2.6.9-5), both the server A and B (say) having dual xeon
>>3.6 GHz with 2 GB RAM, 2x147 GB SCSI HDD (mirrored) and etc...
>>
>>Server-A is up and running with the Grid middle ware applications like
>>globus, job scheduler and this is the node where the grid users access and
>>submit their jobs ( The job will get executed on some other available
>>resources and don't get worried about it; the scheduler will take care of
>>that... :)
>>
>>Now for the Server-B; I manually done the partitioning and the mirroring
>>just like what I had done on the server A. I haven't installed anything on B
>>but the OS  ( Its fresh ! )
>>
>>
>>Well, here follows my Questions :-
>>
>>1. Is there any option to get the exact image of all the stuffs (data,
>>services, applications, partitioning, "everything" ) what I have it on my
>>Server-A to the Server-B ?
>>    a) Ghost    b) Mondo    c) option 'c' is better than all the above.
>>
>>2. What is the best possible way to make a fail-over cluster between the
>>server-A and Server-B ? ( The word "fail-over" connotes what I mean and the
>>requirement)
>>
>>Any comment on this will be appreciated and Thanks in Advance.
>>
>>Thank You
>>
>>~vipin
>>  
>>
>
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