IBM DS3200 Storage Subsystem manual SAS cable

One dual-controller DS3200 and three storage expansion enclosures

To cable one dual-controller DS3200 and three storage expansion enclosures, connect them as shown in Figure 22.

DS3200 RAID controller A RAID controller B

	SAS cable
EXP3000		To DS3200 RAID
		controller A

	SAS cable
EXP3000	SAS cable

	SAS cable
EXP3000	SAS cable

SAS cable

To DS3200 RAID controller B

Figure 22. One dual-controller DS3200 and three storage expansion enclosures

Adding a storage expansion enclosure to a dual-controller configuration that is running

The following procedures provide instructions for adding storage expansion enclosures to a dual-controller DS3200 storage subsystem that is running.

Note: Make sure that each storage expansion enclosure has two ESMs before you connect it to a dual-controller DS3200 storage subsystem. The second ESM must be purchased separately. Contact your IBM marketing representative or authorized reseller for more information about purchasing a second ESM.

For more information about installing a second ESM, see the Installation Guide that comes with the storage expansion enclosure.

To add a storage expansion enclosure to a dual-controller DS3200 storage subsystem that is running, complete the following steps:

1.Make sure that the DS3200 storage subsystem status is Optimal in the Storage Manager software.

2.Use the storage expansion enclosure Rack Installation Instructions document to install the new storage expansion enclosure in the rack.

3.Connect the power cables to the new storage expansion enclosure.

Chapter 3. Cabling the storage subsystem 31