Cabling Controllers To Drive Shelves; Cabling Storage On A Two-Controller Switchless Cluster With No External Storage; Cabling Storage On An Ha Pair With External Drive Shelves - Lenovo ThinkSystem DM3000 series Hardware Installation And Maintenance Manual

Step
Cable the management ports to the management network
switches.
DO NOT the plug power cords in at this point.
Step 2. To cable your storage, see "Cabling controllers to drive shelves" on page 22.

Cabling controllers to drive shelves

You must cable the controllers to your drive shelves or to the onboard SAS ports if you only have onboard
drives and no external drive shelves.
Cabling storage on a two-controller switchless cluster with no external
storage
You must cable the SAS ports together in a two-controller switchless cluster so that both controllers can
access the partner's onboard storage.
Step 1. Cable the SAS ports on your two-controller switchless cluster, without external storage, using the
following steps:
AC
Step
Perform on each controller
1
Cable the SAS ports.
Step 2. To complete setting up your system, see "Completing system setup and configuration" on page 23.

Cabling storage on an HA pair with external drive shelves

You must cable the shelf-to-shelf connections, and then cable both controllers to the drive shelves.
22
ThinkSystem DM3000x and DM5000x Hardware Installation and Maintenance Guide
Perform on each controller
AC
Ports used
• e0M
Not applicable.
Ports used
• Controller 1 0a to
Controller 2 0b.
• Controller 1 0b to
Controller 2 0a.