IBM System Storage
DS4800 Storage Subsystem
Installation and Cabling
Overview
Table 1 summarizes the steps required to correctly install, cable, and power on your IBM
®
System
Storage
®
DS4800 storage subsystem. Unless otherwise stated, all the following tasks are detailed on the
pages numbers referenced in the IBM System Storage DS4800 Storage Subsystem Installation, User’s, and
Maintenance Guide. Review the multilingual IBM Safety Information document and read all safety
information in the IBM System Storage DS4800 Storage Subsystem Installation, User’s, and Maintenance Guide
before you begin the installation.
Attention: Before powering on the DS4800, the storage subsystem must be cabled to at least one storage
expansion enclosure populated with at least two drives. If at least two drives are not installed in each
attached enclosure when you power on the DS4800, your standard storage partition key will be lost and
must be regenerated. In addition, the resulting insufficient load to the enclosure power supplies might
cause them to intermittently appear as failed, falsely indicating the power supplies are bad. All drives in
the connected enclosure or enclosures must contain no prior configuration data.
Table 1. Installation tasks
Task Detailed Description
1 Review the DS4800 installation recommendations and requirements. “Preparing for installation” on page
29
2 Fold down and open the sides of the shipping box. Without removing
the DS4800 from the box, you can remove the DS4800 rack mounting
rails and hardware from the box. Install the support rails in the rack
cabinet.
“Installing the support rails” on page
32
3 Before removing the DS4800 from the shipping box, remove the
components to lighten the unit.
“Removing the components” on page
39
4 Record the serial number, machine type, model number, and RAID
controller MAC addresses for your DS4800.
Appendix B, “Records,” on page 177
5 Install and secure the DS4800 chassis in the rack cabinet. “Installing the DS4800 on the support
rails” on page 41
6 Replace the components in the installed DS4800 chassis. “Replacing the components” on page
43
7 Install in the rack cabinet the DS4000 storage expansion enclosures
you will cable to the DS4800.
Installation, User’s, and Maintenance
Guide for your DS4000 storage
expansion enclosure.
8 Use SFP modules and FC cables to cable the DS4800 to at least one
DS4000 storage expansion enclosure.
“Connecting storage expansion
enclosures” on page 59
9 After you cable the DS4000 storage expansion enclosures, you must
set the enclosure IDs for all enclosures in the configuration.
“Storage expansion enclosure
settings” on page 77
10 For out-of-band management: Cable the DS4800 Ethernet ports to
either the management workstation or to the hosts.
“Connecting secondary interface
cables” on page 81
For in-band management: Cable the DS4800 host channels to the FC
HBAs in either the hosts or the FC switch that connects to the host
FC HBAs.
“Connecting hosts to the DS4800” on
page 79
11 Connect the power cables for the DS4800. “Connecting the power cables” on
page 87
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