Chapter 3. Cabling the storage subsystem
After the storage subsystem is installed in its permanent location, you must cable it to hosts, drives, and other external devices, depending on your hardware configuration.
This chapter addresses the following cabling and configuration topics:
v“Enclosure ID settings ”
v
v“Working with SFPs and
v“Connecting storage expansion enclosures to the DS4700 Express” on page 68
v“Intermixing storage expansion enclosures in the same drive loop” on page 99
v“Connecting hosts to the DS4700 Express” on page 104
v“Connecting secondary interface cables” on page 100
v“Configuring the storage subsystem” on page 101
v“Installing the storage subsystem configuration” on page 110
v“Cabling the ac power supply for ac models” on page 111
v“Cabling the dc power supply for dc models” on page 111
Enclosure ID settings
The enclosure ID, comprised of two
The controller automatically sets the enclosure ID number. You can change the setting through the storage management software if necessary. Both controller enclosure ID numbers are identical under normal operating conditions. Each storage expansion enclosure (including the DS4700 Express Storage Subsystem) in the DS4000 storage subsystem configuration must have a unique storage enclosure ID. In addition, the single digits (x1) of the enclosure IDs of all storage expansion enclosures (including the DS4700 Express Storage Subsystem) in the redundant drive channel/loop pair must be unique.
The allowable ranges for enclosure ID settings are
80.The DS4700 Express enclosure ID is normally set to a value of 85 at the factory.
Figure 32 on page 56 shows the enclosure ID on models 70 and 72.
© Copyright IBM Corp. 2010 | 55 |
