Deploying the Storage Tier for High Availability

Objectives

After completing this lesson, you will be able to:

  • Deploy storage tier for high availability

FRS High Availability

Use of SAN for the File Store

Using a Storage Area Network (SAN) for an SAP BusinessObjects BI platform provides the following benefits:

  • SANs typically provide low latency rates.

  • SANs provide powerful replication features within a disaster recovery configuration.

  • A mirrored SAN provides snapshot back-ups.

FRS Installation Considerations

The following are considerations:

  • Initially, each FRS points to a local directory on the server where it was installed.

  • This configuration should be changed so file storage is managed in a common area.

You can have more than one Input and Output FRS to support High Availability. It is recommended to have a second Input and Output FRS on a separate machine for fault-tolerance.

The first FRS server (of that type - Input or Output) that is running and enabled is the active FRS. All other FRS servers running and enabled areĀ  passive FRS servers. Although multiple FRS servers can run simultaneously in the same system, only one of each FRS type will handle FRS requests. If an active FRS fails, a passive FRS is changed to active status. When the previously active FRS becomes operational again, it's registered as a passive FRS.

Note: Good disk and I/O performance are critical for the operation of the FRS.

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