Single SCSI Port Hosts

When installing the Netra D130/StorEdge S1 storage enclosures on single SCSI port hosts use the Netra E1 PCI Expander for the second host SCSI port. Figure 10-1 shows an overview of the installation. The storage devices are cabled so that there is no single point of failure in the cluster. Netra E1 PCI Expanders provide the second SCSI port for the 1RU form factor hosts such as the Netra t1, x1 or t1 200.

Figure 10-1 Overview Example of a Enclosure Mirrored Pair Using E1 Expanders

1. Connect the cables to the Netra D130/StorEdge S1 enclosures, as shown in Figure 10-2.

   Make sure that the entire SCSI bus length to each Netra D130 enclosures is less than 6 m. The maximum SCSI bus length for the StorEdge S1 enclosure is 12 m. This measurement includes the cables to both nodes, as well as the bus length internal to each enclosure, node, and host adapter. Refer to the documentation that shipped with the enclosures for other restrictions regarding SCSI operation.

   Figure 10-2 Example of SCSI Cabling for an Enclosure Mirrored Pair

   
   

2. Connect the Ethernet cables between the host enclosures, Netra E1 PCI expanders, and Ethernet switches, as shown in Figure 10-3.

   Figure 10-3 Example of Ethernet cabling for an Mirrored Pair Using E1 Expanders