Improving Service Availability with Red Hat Add-Ons

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We at Red Hat understand how important service availability is to our customers, and offer a number of products to help minimize downtime of critical applications.  Through the Red Hat High Availability, Resilient Storage, and Load Balancer Add-Ons, you can configure your services and applications for fault detection and recovery, concurrent access to data across multiple systems, and load balancing, to ensure they are always available whenever you need them. 

 

Because we love to see our customers collaborating and sharing their ideas, and since your feedback helps us to continuously improve our products, I would like to hear about your experiences and thoughts surrounding high-availability.  

 

  • Do you utilize Red Hat products to ensure continuous uptime of your applications?
  • Have you found innovative new ways to make your applications more reliable or available using Red Hat add-ons?
  • Are you interested in deploying a highly available service but just aren't sure how to go about it?

Then let us know!  

 

Thanks,
John

Responses

Hi John,

yes, I´m looking for the HA-Features for creating reliable services. I don´t know, how to evaluate HA on redhat.

Cheers,

Uli

Hello Uli!  There are a TON of resources available on the Red Hat Portal to help you understand the features our HA provides and how to implement it.  I'd start off with these two reference architectures:

 

Deploying a Highly Available Web Server on Red Hat Enterprise Linux 5, Volume 1: NFS Web Content

https://access.redhat.com/knowledge/refarch/2008-deploying-highly-available-web-server-red-hat-enterprise-linux-5-volume-1-nfs

 

Deploying a Highly Available Web Server on Red Hat Enterprise Linux 5, Volume 2: GFS2 and Shared Storage

https://access.redhat.com/knowledge/refarch/2008-deploying-highly-available-web-server-red-hat-enterprise-linux-5-volume-2-gfs

 

They show two different ways to deploy High Availability.  That should should give you an idea of our terminology and the basics of how things get set up.  We also have a great series of videos on taklnig about clustered filesystems and thre's even a series demonstrating GFS2:

 

https://access.redhat.com/knowledge/videos/

https://access.redhat.com/knowledge/videos/red-hat-enterprise-linux-6-using-gfs2-your-enterprise

https://access.redhat.com/knowledge/videos/red-hat-enterprise-linux-6-gfs2-demo-part-1

https://access.redhat.com/knowledge/videos/red-hat-enterprise-linux-6-gfs2-demo-part-2

https://access.redhat.com/knowledge/videos/red-hat-enterprise-linux-6-gfs2-demo-part-3

https://access.redhat.com/knowledge/videos/red-hat-enterprise-linux-6-gfs2-demo-part-4

 

Hopefully this will help you with your evaulation!

 

Cheers,

Chris Robinson

Technical Account Manager

Red Hat Inc

Hi John,

 

 

We use Red Hat clustering to make Oracle databases High available, without the extra costs of "double" licenses and the costs for RAC.

 

One application I made high available in the past with the Loadbalancer Add-on.

 

I do not see the advantages of Resilent Storage yet.

 

Kind regards,

 

 

Jan Gerrit Kootstra

The vast majority of our new systems deployments - both Linux and Windows - are virtualized. We don't find terribly much utility in OS-level clustering for availability as our virtualization solutions already provide this. What would be of far greater value to us would be for RedHat to provide something akin to Ksplice so that routine patching and maintenance didn't require us to take downtimes on our otherwise highly-available systems.

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