Environmental Service Modules; Rear View, Single-Controller Model (Shown Without An Optional Host Port Adapter) - IBM DS3500 Installation, User's, And Maintenance Manual

v Support for one optional host port adapter:
– Two-port 6 Gbps SAS
– Four-port 8 Gbps FC
– Four-port 1 Gbps iSCSI
– Two-port 10 Gbps iSCSI
The Ethernet ports come with the following default IP addresses:
Port 1 on controller A is 192.168.128.101
Port 2 on controller A is 192.168.129.101
Port 1 on controller B is 192.168.128.102
Port 2 on controller B is 192.168.129.102
The subnet mask for both Ethernet ports is 255.255.255.0.
Attention: When a DS3500 storage subsystem has two controllers, the controllers must be identical to
each other in hardware (host port adapter and cache size) and firmware. If you install a host port adapter
in one controller, you must install an identical host port adapter in the other controller.
The storage management software automatically sets the enclosure ID for the controllers. You can change
the enclosure ID setting through the Storage Manager software only. There are no switches on the DS3500
chassis to manually set the enclosure ID. Both controller enclosure IDs are identical under normal
operating conditions.
Figure 1-7 shows a single-controller storage subsystem without an optional host port adapter installed.
See "Cabling the DS3500 storage subsystem" on page 3-1 for illustrations of the storage subsystem with
optional host port adapters installed in the controllers.
RAID controller A
Hot-swap power supplies
Figure 1-7. Rear view, single-controller model (shown without an optional host port adapter)

Environmental service modules

The EXP3500 storage enclosure comes with a single ESM. An optional ESM is available for redundant
configurations. If the controller connected to the ESM supports more than one EXP3500 storage enclosure
per physical port, you can connect two or more EXP3500 storage enclosures by chaining them together.
For information about connecting an EXP3500 storage enclosure to a DS3500 storage subsystem, see
"Connecting storage enclosures to the DS3500" on page 3-19.
Figure 1-8 on page 1-12 shows an EXP3512 storage enclosure containing one ESM and a filler panel over
the blank ESM bay.
Filler panel
1-11
Chapter 1. Introduction