Compaq AA-RHGWC-TE manual

10

Configuring Systems for External Termination or Radial Connections to Non-UltraSCSI Devices

This chapter describes how to prepare the systems for a TruCluster Server cluster when there is a need for external termination or radial connection to non-UltraSCSI RAID array controllers (HSZ40 and HSZ50). This chapter does not provide detailed information about installing devices; it describes only how to set up the hardware in the context of the TruCluster Server product. Therefore, you must have the documentation that describes how to install the individual pieces of hardware. This documentation should arrive with the hardware.

All systems in the cluster must be connected via the Memory Channel cluster interconnect. Not all members must be connected to a shared SCSI bus. We recommend placing the clusterwide root (/), /usr, and /var file systems, all member boot disks, and the quorum disk (if provided) on shared SCSI buses. All configurations covered in this manual assume the use of a shared SCSI bus.

Before proceeding further, review Section 4.1, Section 4.2, and the first two paragraphs of Section 4.3.

10.1TruCluster Server Hardware Installation Using PCI SCSI Adapters

The following sections describe how to install the KZPSA-BB or KZPBA-CB host bus adapters and configure them into TruCluster Server clusters using both methods of termination — the preferred method of radial connection with internal termination used with the HSZ40 and HSZ50 RAID array controllers, and the old method of external termination.

It is assumed that you have already configured and cabled your storage subsystems as described in Chapter 9. When the system hardware (KZPSA-BB or KZPBA-CB host bus adapters, Memory Channel adapters, hubs (if necessary), cables, and network adapters) have been installed, you can connect your host bus adapter to the UltraSCSI hub or storage subsystem.

Configuring Systems for External Termination or Radial Connections to Non-UltraSCSI Devices 10–1