Re: suggestions re. cluster configuration

One thing I'm wondering about is doubling up the mirrors:  I've got 4 
drives on each server, so what I'd like to do is:
- mirror pairs of drives on each server
- mirror each pair, using drbd with a matching pair on the other server

That way, if one server goes down, all the data is still mirrored.

Anybody try a setup like this?

Thanks,

Miles

Roger Tsang wrote:
> Also you don't need heartbeat in OpenSSI.  If you want active/active
> cluster without external storage OpenSSI+DRBD is the way to go versus
> just DRBD+heartbeat.  I wouldn't imagine too many people doing
> active/active setups using DRBD without OpenSSI.  CFS failover is much
> more elegant.  Plus if CPU is the bottleneck in your application you
> can always add more nodes to your OpenSSI+DRBD cluster.
>
> Roger
>
> On 7/7/06, Christopher Hawkins <[email protected]> wrote:
>   
>> For a two node HA cluster, I think the simplest way would be heartbeat and
>> DRBD. That would give you a single service IP address and data mirroring. In
>> my experience with this config, you can get failover in just a few seconds
>> if the primary node dies. There are lots of ways to make it more complex...
>> Xen, etc., but that might just be making it harder than it needs to be.
>>
>> Chris
>>
>> -----Original Message-----
>> From: [email protected]
>> [mailto:[email protected]] On Behalf Of Miles
>> Fidelman
>> Sent: Friday, July 07, 2006 1:51 PM
>> To: [email protected]
>> Subject: [SSI-users] suggestions re. cluster configuration
>>
>> Hi,
>>
>> I'm wrestling with possible configurations for a 2-node, high availability
>> cluster.
>>
>> What I seem to be zeroing in on is:
>> - using Xen to provide several virtual servers on each box
>> - using md to raid together the disks on each server
>> - using DRBD to mirror the primary machine to the backup server
>> - using EVMS to manage partitions and such
>> - using SSI to provide a single interface to the world for each pair of
>> virtual servers
>>
>> Anybody have any experience with this kind of setup? Any suggestions,
>> pointers to recipes, etc.?
>>
>> Thanks much,
>>
>> Miles Fidelman
>>
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>>
>> Using Tomcat but need to do more? Need to support web services, security?
>> Get stuff done quickly with pre-integrated technology to make your job easier
>> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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>>     
>
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> Ssic-linux-users mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/ssic-linux-users
>   


Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642