5. Before removing the DS5020 from the shipping box, remove the components
from the DS5020 chassis to lighten the unit. See “Removing the CRUs” on
page 36.
6. Record the serial number, machine type and model number,and RAID
controller MAC addresses for your DS5020 storage subsystem in AppendixA,
“Records,” on page 163.
The serial number, machine type, and model number are located on the left
edge of the front unit as shown in Figure 12.
The MAC addresses are located near the Ethernet ports on each RAID
controller.
7. Install and secure the DS5020 chassis in the rack cabinet. See “Installing the
DS5020 into a rack on the support rails” on page 40.
8. If needed, replace the components in the installed DS5020 chassis. See
“Replacing the components” on page 42.
9. Install the storage expansion enclosure or enclosures you will cable to the
DS5020 in the rack cabinet. Follow the instructions in the Installation, User’s,
and Maintenance Guide for your storage expansion enclosure to set up and
mount the storage expansion enclosures.
10. Use SFP modules and Fibre Channel cables to cable the DS5020 to the
DS4000 storage expansion enclosure or enclosures. See “Connecting storage
expansion enclosures to the DS5020” on page 54.
11. Perform one of the following cabling tasks to enable management of the
DS5020 configuration:
vIf you are using out-of-band management, cable the DS5020 Ethernet ports
to either the management workstation or the host.
vIf you are using in-band management, cable the DS5020 host channels to
the Fibre Channel host bus adapters (HBAs) in either the hosts or the Fibre
Channel switch that connects to the host HBAs. See “Connecting hosts to
the DS5020 using Fibre Channel host ports” on page 82.
12. Connect the power cables for the DS5020. See “Cabling the ac power supply”
on page 91.
Attention:
Before you turn on the power to the DS5020 storage subsystem, it must be
populated with at least two E-DDMs.
If at least two E-DDMs are not installed in the DS5020, an insufficient load to
the enclosure power supplies might cause them to intermittently appear as
failed, falsely indicating the power supplies are bad. All of the E-DDMs in the
DS5020 storage subsystem and the connected storage expansion enclosure or
enclosures must contain no prior configuration data.
Ser ial n u m b er
Machine type
Model number
Figure12. Example of DS5020 serial number, machine type, and model number location
28 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide