fail over

Keep in mind that this kind of cache will not be cluster aware in case of a fail over; this is sometimes an acceptable trade-off.

This approach is often used to enable the use of backup servers in performing fail-over support for improving service availability.

Allow one failover cluster node to fail over to any other node in the failover cluster configuration.

Migrating without failover offers a simpler procedure that does not require you to fail over to your secondary server .

It usually takes only a few minutes for the cluster to fail over to another node.

Higher values of SAT generally cause the server to fail over too quickly, possibly dumping too much of its share of the workload.

This shared state can also be used to fail-over the work orphaned by a failed instance to an instance that is still running.

Static transfer switch are used to provide a fail-safe fail over in the event of a major power failure or in maintenance mode.

If the resources cannot come online for the new node, that node will fail over to the next node.

The IP address will fail over when a failure is detected, and the same connect statement can be used by the application that it used before.

Fault-tolerant systems, however, have alternate sources for critical services and fail-over from a primary server to a backup server.

Novell has a concept of "clustering" or chaining LDAP servers to load balance or fail-over.

Clustering could let you keep an older server as a fail over to a newer, faster system.

JBM supports clustered Queues and Topics out-of-the-box along with transparent fail-over and intelligent message redistribution.

Apart from routing the requests, the proxy server is also capable of load balancing, fail over, and distributed authentication.

Optionally, estimate the time to fail over a database, to make sure that your system configuration will provide the performance you require.

Unfortunately, hardware doesn't last forever, and systems can fail over years of continued use.

You can use a combination of these two options to achieve both performance improvement and fail-over.

Fail-over for stateless services is straightforward - Fabric3 clusters them so there is nothing sophisticated that needs to be done.

A log shipping configuration does not automatically fail over from the primary server to the secondary server.

Because mirrored databases are independent of each other, databases cannot fail over as a group.

This facilitates IP Address and Network Name resources coming online when services or applications fail over to remote nodes.

Installing a more complex collection of nodes featuring load-balancing and fail-over can take considerably longer.

However, many customers run two VIOS partitions to provide redundancy and fail-over to the AIX client partition.

For best results, an EVS should not fail over to an active node that runs another application.

This paper gives the concept and theory, installation and application, usual problem and resolvent of the fail over cluster.

Fail over each EVS at least once to each of the nodes.

If a server fails, both the messaging and Business Events event processing will fail over to another server within the cluster.

A fail-over connection is set up for automatic switchover of updating apps from primary to standby.

The application servers will automatically fail over to backup servers should the primary fail.

This allows the transaction log files and the database files to fail over to another node simultaneously.

This allows the log files and the storage group databases to fail over to another node if the EVS goes offline.

Once the mirroring session is synchronized, manually fail over to the mirror database.

When the upgrade is completed, an administrator may optionally fail over back to the original server instance.

This can be based on availability (fail-over), geographical proximity or load, a Windows Domain administrator can configure this.

If Partner_A goes offline, the database on Partner_B can fail over to become the current principal database.

Voldemort is fully distributed and decentralized, and supports partitioning and fail over.

Describes the procedures to cluster, fail-over, repair, and rename the application-tier and data-tier servers.

The simplest fail-over cluster has two nodes: one stays active and the other stays on stand-by but constantly monitors the active one.

In this way individual modules can be secured or even distributed to different machines for load balancing or fail-over.

MPIO can be used to facilitate fail-over or load balancing.

In the previous section, you saw how processing could fail over from one server to another in a controlled environment.

Replication does not provide a mechanism to fail over from one server to another standby server.

The clustered environments provide scalability and fail over.

You can specify which region should be used first and when to fail over to another region.

Before the cluster has time to fail over, the loss of the principal server is detected by the mirror server, with the help of the witness.

Then, if this bridgehead server becomes unavailable, they will fail over to the second connector.

These monitored Web services will move to fail over Web services temporarily.

Does the existing environment provide fail-over support?

As a result, the entire cluster is offline for as long as it takes the group to fail over.

Describes how to fail over to a secondary database and bring it online.

Each will fail over to the other server as secondary.

This fail-over mechanism can be verified as follows.

If the principal goes down, the database can fail over to the mirror, automatically if you have a witness.

WebLogic Server adds features such as clustering, management, fail-over and reliability.

Some might say we fail, over and over again.

A proxy server can also act as a load balancer or a fail-over manager.

For example, you might force a rebuild after you move, rename, restore, or fail over a data-tier or application-tier server.

During automatic fail-over, onconfig parameter DRAUTO is set to one (DRAUTO =1).

During manual fail-over, onconfig parameter DRAUTO is set to zero (DRAUTO =0).

Stop error message when you try to fail over a cluster node to another node

Troubleshooting SQL Mail: SQL Mail Does Not Fail Over On A Cluster

To manually fail over a database mirroring session

Automatic replication with automatic fail-over upon node crash