SCv3000 and SCv3020 Storage System Deployment Guide

Cable the Storage System with 4-Port SAS HBAs to Host Servers using One SAS HBA per Server

A storage system with four front-end SAS ports on each storage controller can connect to up to four host servers, if each host server has one SAS HBA with two ports.

About this task

This configuration includes four fault domains spread across both storage controllers. The storage controllers are connected to each host server using two SAS connections.

If a storage controller becomes unavailable, all of the standby paths on the other storage controller become active.

1. Connect fault domain 1 (shown in orange) to host server 1.
   1. Connect a SAS cable from storage controller 1: port 1 to the SAS HBA on host server 1.
   2. Connect a SAS cable from storage controller 2: port 1 to the SAS HBA on host server 1.
2. Connect fault domain 2 (shown in blue) to host server 2.
   1. Connect a SAS cable from storage controller 1: port 2 to the SAS HBA on host server 2.
   2. Connect a SAS cable from storage controller 2: port 2 to the SAS HBA on host server 2.
3. Connect fault domain 3 (shown in gray) to host server 3.
   1. Connect a SAS cable from storage controller 1: port 3 to the SAS HBA on host server 3.
   2. Connect a SAS cable from storage controller 2: port 3 to the SAS HBA on host server 3.
4. Connect fault domain 4 (shown in red) to host server 4.
   1. Connect a SAS cable from storage controller 1: port 4 to the SAS HBA on host server 4.
   2. Connect a SAS cable from storage controller 2: port 4 to the SAS HBA on host server 4.