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Use the Ethernet interface ports on the back of the storage subsystem to connect
the controllers for direct management of the storage subsystems (see “Direct
(out-of-band) management method” on page 105).
Important:
1. To minimize security risks, do not connect the DS4500 in a public LAN or public
subnet. Use a local private network for the DS4500 and the management
station Ethernet ports.
2. To ensure proper EMI shielding, always use quality braided and shielded serial
cables.
Connect a pair of Ethernet cables from the storage-management station to the
Ethernet ports for controller A (located on the top) and controller B (located on the
bottom) on the back of the storage subsystem. For the location of the ports on the
DS4500 Storage Subsystem, see “Ethernet interface ports” on page 50. Only one
Ethernet port connection from each controller is required to establish a direct
(out-of-band) management connection to the DS4500 Storage Subsystem.
Configuring the storage subsystem
You must configure the storage subsystem configuration after you install the storage
subsystem in a rack cabinet. Use the information in the following sections to
configure your storage subsystem configuration.
Storage subsystem management methods
Before you configure the storage subsystem, determine which method of storage
subsystem management you want to use. You can manage the storage subsystems
in either of two ways: host-agent (in-band) management or direct (out-of-band)
management.
For more information on setting up in-band or out-of-band management
connections, refer to the DS4000 Storage Manager Installation and Support Guide
for the operating system of the host computer that will be used to manage the
DS4500 Storage Subsystem.
Important: If the operating system of the host server that the storage subsystem
logical drives are mapped to is not Microsoft Windows 2000 or Server
2003, then you have to make a direct (out-of-band) management
connection to the storage subsystem to set the correct host type first.
Then, the server will be able to recognize the storage subsystem
correctly for host-agent (in-band) management.
Host-agent (in-band) management method
This method, show in Figure 77 on page 105, requires host-agent software that you
install on the host server. The host-agent software allows the DS4000 Storage
Manager client program to manage the DS4000 storage subsystem using the same
fibre channel connections between the host server and the storage subsystem. You
must install at least one management station and a software agent host. The
management station can be the host or a workstation on the Ethernet network. A
management station will have the client software installed.
104 IBM TotalStorage DS4500 Fibre Channel Storage Subsystem: Installation, User’s, and Maintenance Guide