[Linux-cluster] linux cluster on rhel5 without using gfs and shared storage

[Bennie Thomas]

You can attach a network disk device and have it fail over with the 
active system and make
tomcat and mysql dependant of the disk resource. This is the simple 
route. when dealing with
clusters you should keep the "KISS" approach in-mind.

Regards,

Bennie

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Maciej Bogucki wrote:
> sajith napisał(a):
>   
>> Hai all,
>>
>> 	I am new to linux cluster. I want to set up a two node cluster using
>> rhcs. In my application I am using tomcat and mysql as database. My aim is
>> to configure both servers in active-passive configuration. I have tested the
>> failover of ip and process using conga. But I am stuck with the
>> configuration of mysql failover. I am confused with how to make the data
>> files redundant for mysql. If I am using nfs for data files the files are
>> not accessible if nfs server is down. How can I create an online back up of
>> my data files so that if my main server is down then also I can access my
>> data from the online backup? I don't have gfs and SAN storage. My data files
>> and application reside in same machine. Please help
>>     
>
> Hello,
>
> You can use drbd[1] to mirror block device via network. You also need
> some automatic failover mechanism fe. RHCS or heratbeat[2].
>
> [1] - http://www.drbd.org/
> [2] - http://www.linux-ha.org/
>
> Best Regards
> Maciej Bogucki
>
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>   

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