Tuesday, February 28, 2012

Storage Replication Usage - Part 3


Introduction
In the previous article which I have explain the type of replication over by the software. As you can see each of the option you choose will have its own pros and cons especially on the expectation of recovery. What I would like to cover more on this episode will be how you should use your software and when you need to use it. Since in the first part 1 and part 2 I have mention this is all for Disaster recovery. Let have a quick look into it, where else we can use the solution in our common production system.

Where we should use storage replication?


There is few areas that we might want to consider when using the storage replication by SteelEye.

Scenario 1:
In such cases, we might have a different storage or volume that we might want to consider to perform a backup. Using the normal method such as copy paste doesnt help in this case because copying over 100GB  with the changes of 1MB that might not make sense.Since the software offer volume base replication, as long as the host OS can see the volume, it will be able to replicate over the delta changes.

Scenario 2:
In other scenario would be as a manual HA server, where by you need to make sure those changes are replicated over to other machines. This can help in any cases of physical hardware failure. With this approach you can minimize the effort needed to restore the entire system. With this approach they will be still a downtime on the server. But you want to look into windows clustering features as well and see how it can help reduce some of the manual work.


Reference
Part 1 : Installing SteelEye Storage Replication software
Part 2 : Consideration Of Storage Replication 
Part 3 : Scenario of Storage Replication
Part 4 : Configure Storage Replication mirror
Part 5 : Configure cluster
Part 6 : Configure high availability VM(Live migration without shared storage)

Summary 
Stay tune with my next articles which I will going to deep dive into configuring replication. Let us know what you though , learns and hope for next articles!. Connect with us on GOOGLE+ , TWITTER and FACEBOOK.

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