To enable hardware termination, leave the pins open. The default is hardware termination.

Clustering

Physically, a cluster is a grouping of two independent servers that can access the same data storage and provide services to a common set of clients. With current technology, this usually means servers connected to common I/O buses and a common network for client access.

Logically, a cluster is a single management unit. Any server can provide any available service to any authorized client. The servers must have access to the same data and must share a common security model. Again, this generally means that the servers in a cluster will have the same architecture and run the same version of the same operating system.

Cluster Mode

You can use the PERC BIOS Configuration Utility to enable or disable cluster mode. When you enable cluster mode, the system operates in cluster mode. When you disable cluster mode, the system operates in standard mode. The following section explains how to do this.

Enabling and Disabling the Cluster Mode

You can enable or disable cluster mode. When you enable cluster mode, the system automatically disables the BIOS. If any of the controllers are set for clustering, the following warning appears when you press <Ctrl> <M> to access the BIOS Configuration Utility:

!!!STOP!!!

This operation may change the configuration of disks and can cause loss of data! Ensure:

1.Peer server is powered up for its controller NVRAM to be updated. Otherwise, disk configuration should be read from disk and saved to the controller’s NVRAM.

2.The second server must not be configuring the disks.

3.There is no I/O activity against shared drives.

4.Press Any Key to Continue.

NOTE: Clustering is not supported by PERC 3/QC, PERC 3/DCL or PERC 3/SC. It is supported by PERC 3/DC.

NOTE: You can ignore this section on enabling and disabling cluster mode if you do not use clustering.

PERC 3 BIOS Configuration Utility

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Dell 3 manual Clustering, Enabling and Disabling the Cluster Mode