1
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1answer
37 views

How Automatic Failover Works (AlwaysOn)

I'm going to use AlwaysOn technology on my servers, but it's some unclear points in the documentation: Automatic failover looks like Primary replica (A) unaccessable Secondary replica (B) becomes ...
1
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1answer
62 views

Heartbeat Options with MySQL and Possibilities

I would like to understand if the following scenarios are possible in Heartbeat in Linux. Setup: Two Database Servers running Mysql in Active/Passive mode in replication mode having Heartbeat setup ...
1
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1answer
64 views

How do I set up high availability at the instance level? [closed]

I have two database instances (Instance A, Instance B) of SQL Server, each one hosted on a separate VM using windows server 2012. Instance A has SQL Server 2008 R2, instance B has Sql server 2012. I'm ...
0
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1answer
86 views

Should we always prefer clustering over a master-slave configuration if the goal is high-availability?

Given: I have two virtual machines on a SAN that I can use to host RavenDB. Question: If my goal is high-availability, then should I always prefer clustering over a master-slave configuration? From ...
1
vote
0answers
23 views

JBoss/Alfresco cannot write on slave after failover [duplicate]

Possible Duplicate: JBoss don't fail over MySQL slave using datasource I'm trying to set up an high available MySQL "cluster", using a Master / Slave Replication configuration. I want ...
2
votes
1answer
2k views

JBoss don't fail over MySQL slave using datasource

I'm trying to set up an high available MySQL cluster, using a Master / Slave configuration. I want to the slave become master (e.g. not read-only but writeable) if the first node come down (like in ...
4
votes
2answers
3k views

What are the differences between Mirroring and Failover Clustering and when is each one recommended over the other?

What are the main differences between Mirroring and Failover Clustering? What kind of problem each one solves and in what kind of scenarios is each one recommended over the other?