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. Each expansion module provides a PRI expansion port and an EXP expansion port.
Ports
Figure 4-74 shows the ports of an expansion module.
1 |
Expansion module handle |
2 |
Serial port |
3 |
Alarm indicator of the expansion module |
4 |
Power indicator of the expansion module |
5 |
Indicator of the mini SAS HD expansion port |
6 |
Mini SAS HD PRI expansion port |
7 |
Mini SAS HD EXP expansion port |
8 |
Disk enclosure ID display |
Indicators
Table 4-31 describes indicators on an expansion module of a powered-on storage system.
No. |
Indicator |
Status and Description |
|---|---|---|
3 |
Alarm indicator of the expansion module |
|
4 |
Power indicator of the expansion module |
|
5 |
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 4-75 shows the appearance of an AC power module. Figure 4-76 shows the appearance of a DC power module.
1 |
Power module handle |
2 |
Power module latch |
3 |
Fan built in the power module |
4 |
Power module socket |
5 |
Running/Alarm indicator of the power/fan module |
- |
- |
1 |
Power module handle |
2 |
Power module latch |
3 |
Fan built in the power module |
4 |
Positive and negative terminals of the power module |
5 |
Running/Alarm indicator of the power/fan module |
- |
- |
Indicators
Table 4-32 describes indicators on a power module of a powered-on storage system.
No. |
Indicator |
Status and Description |
|---|---|---|
5 |
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.
Appearance
Figure 4-77 shows the appearance of a disk module.
1 |
Running indicator of the disk module |
2 |
Alarm/Location indicator of the disk module |
3 |
Disk module latch |
4 |
Disk module handle |
5 |
Disk module label |
6 |
Disk |
7 |
Disk tray |
- |
- |
Indicators
Table 4-33 describes indicators on a disk module of a powered-on storage system.
No. |
Indicator |
Status and Description |
|---|---|---|
1 |
Running indicator of the disk module |
|
2 |
Alarm/Location indicator of the disk module |
|
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