For a seamless recovery of your Oracle servers, SteelEye Life Keeper from Open Minds guarantees to provide you with a complete disaster recovery solution ensuring that you maintain business continuity. Our high availability solutions will grant continuous data protection providing data replication as well as the monitoring of all your Oracle servers to ensure failover through the Java GUI.
Oracle Servers form a crucial part of many organisations, and have
traditionally run on high end proprietary hardware to ensure
reliability and availability.With Open Minds you can gain the
benefits of High Availability Clustering, at a fraction of the cost
compared with e.g. Oracles RAC or Microsofts Cluster Server and with
added functionality.
Our solutions offer features not available
with traditional clustering products - for instance disaster recovery,
LAN or WAN failover and the option of whether or not to use shared
storage, while providing resilience, enhancing availability and
controlling cost.
Built around SteelEyes LifeKeeper product, we can
recover Oracle databases in minutes. LifeKeeper for Oracle ties the
data integrity of Oracle databases to the increased availability
provided by LifeKeeper.
 Oracle database failover
Oracle
database files and resources are protected by monitoring key Oracle
processes and file systems. When an Oracle database or dependent
resources is detected not to respond, LifeKeeper initiates a recovery
scenario that attempts recovery on the local server. If this recovery
fails, then the database is recovered on the remote server.
The core
LifeKeeper product assumes that shared storage will ensure data
availability. If no shared storage is available then data availability
must be ensured via LifeKeeper Data Replication.
Oracle RAC or Oracle Enterprise Edition are not required to recover Oracle databases with LifeKeeper.
Data Replication - eliminating the need for Shared Storage
LifeKeeper
data replication replicates data from a local disk located on an active
server to a local disk located on a backup server.
Data
replication is only required when there is no shared storage available.
Data is continually updated synchronously or asynchronously, to a
backup disk on the second server.
When recovery on the backup
server takes place, data is up-to-date due to the replication that has
already taken place. An additional benefit of replicating the data is
that a backup of the data is always available online in case of disk or
hardware failure.
Disaster Recovery Oracle Databases to a remote site
Oracle
disaster recovery provides automated replication of Oracle databases to
a remote site and failover to a remote site. Remote recovery involves:
• Asynchronously and reliably replicating data over a WAN
• Reliably monitoring Oracle databases
• Switching over to a remote site if a site disaster occurs
• Access to Oracle resources is recovered in minutes
When
the original site becomes available, LifeKeeper will automatically
replicate data to it, and once the local data is up to date, a
switchover back to the primary node can take place.
The data
replication software provides added benefits, for example a mirror can
be paused and a backup taken of it, without affecting the active node,
and helping to guarantee the integrity of the backup. The mirror can
then be resumed, and only updated data on the primary node will be
copied across.
Running multiple instances of Oracle
There
is no need to have redundant servers in a cluster using LifeKeeper as
each node can be active. This could be by having multiple instances of
Oracle within a cluster, or it could be by running a separate
application on the backup server such as Apache.
Java GUI administration
A
Java GUI simplifies administration, configuration and management of the
failover and data replication process. This can be done via the console
or through a web browser
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