IBM Netezza Replication Services, Version 1.6

Replication log server connections to the storage array

In the sample configuration, each replication log server host has two single-port SAS HBA connections. One port is connected to Controller A and the other to Controller B to form a resilient SAS topology to the storage array subsystem.

Connect to the ports as follows:
  • Connect an SAS cable from the HBA card in Server 1 host PCI slot 2 to the SAS Link 1 port on Controller B in the storage array. Connect an SAS cable from the HBA card in Server 2 host PCI slot 2 to the SAS Link 1 port on Controller B in the storage array.
  • Connect an SAS cable from the HBA card in Server 1 host PCI slot 5 to the SAS Link 1 port on Controller A in the storage array. Connect an SAS cable from the HBA card in Server 2 host PCI slot 5 to the SAS Link 1 port on Controller B in the storage array.
The following table summarizes the HA connections to the storage array.
Table 1. Replication log server host to storage array connections with HA
From server host bus adapter... To storage array host bus adapter...
Host 1 HBA 1 Controller A Port 1
Host 1 HBA 2 Controller B Port 1
Host 2 HBA 1 Controller A Port 2
Host 2 HBA 2 Controller B Port 2
Figure 1. Replication log server host to storage array wiring diagram (HA)
The diagram shows two replication log server hosts that each have two connections to a storage array.


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