Component Description
This section provides the detailed illustration and description for each component.
System Subrack
The system subrack houses a midplane to provide reliable connections for interface modules and to distribute power and signals to inner modules.
Expansion Module
An expansion module provides expansion ports for communication between a disk enclosure and a controller enclosure, or between different disk enclosures. Each expansion module provides P0 and P1 expansion ports.
Ports
Figure 4-137 shows the ports of an expansion module.
Only serial cables can be inserted into the serial ports. Do not insert network cables into the serial ports.
Indicators
Table 4-56 describes indicators on an expansion module of a powered-on storage system.
Indicator |
Status and Description |
|---|---|
Alarm indicator of the expansion module |
|
Power indicator of the expansion module |
|
Indicator of the mini SAS HD expansion port |
|
Power Module
The storage system supports AC and DC power modules. Power modules can ensure that the disk enclosure works correctly in maximum power consumption mode.
Appearance
Figure 4-138 shows the appearance of an AC power module. Figure 4-139 shows the appearance of a DC power module.
Indicators
Table 4-57 describes indicators on a power module of a powered-on storage system.
Indicator |
Status and Description |
|---|---|
Running/Alarm indicator of the power/fan module |
|
Disk Module
Disk modules provide storage capacity for a storage system. Disk modules can function as system coffer disks to save service data, system data, and cache data.
Indicators
Table 4-58 describes indicators on a disk module of a powered-on storage system.
Indicator |
Status and Description |
|---|---|
Running indicator of the disk module |
|
Alarm/Location indicator of the disk module |
|