Storage system drive trays
The drive trays contain drives, power supplies, fans, and status LEDs. Each drive tray provides interfaces for connecting to controllers and other drive trays. The all-flash storage arrays have various fixed storage capacity configurations with FMD DC2 flash storage devices. To deliver consistent low latency host response times and highest IOP performance across all host connection ports, conventional HDDs are not included or configurable with all-flash arrays.
Small form-factor (SFF) drive tray
SFF with front panel bezel

Number |
Item |
Description |
1 |
POWER LED |
Green: Drive tray is powered on. |
2 |
READY LED |
Green: Drive tray is operational. |
3 |
LOCATE LED |
Amber:
|
4 |
Lock |
Locks and unlocks the front panel bezel by using the supplied key. |
SFF front panel without bezel

Number |
Item |
Description |
1 |
ACT LED |
Green: Normal operation. Blink green: Drive is being accessed. |
2 |
ALM LED | Red: Drive stopped due to a failure and can be replaced. |
3 |
POWER, READY, and LOCATE LEDs |
Green: Drive tray is powered on. |
Green: Drive tray is operational. | ||
Amber:
| ||
4 |
Small form factor drives |
The twenty-four 2.5-inch small form factor drives are positioned vertically. The slots are organized from 0 to 23. |
SFF rear panel

Number |
Item |
Description |
1 |
ENC | N/A |
2 |
POWER LED |
Green: ENC is in the power-on state. |
3 |
LOCATE LED |
Amber:
|
4 |
ALARM LED |
Red: ENC can be replaced. |
5 |
PATH (IN) LED |
Blue: IN side port is linked up. |
6 |
PATH (IN) connector |
Connects to a controller or drive tray. |
7 |
PATH (OUT)LED |
Blue: OUT side port is linked up. |
8 |
PATH (OUT) connector |
Connects to a drive tray. |
9 |
Console |
This port is reserved. |
10 |
Power supply unit | N/A |
11 |
Receptacle |
Connects to the power cable provided with the storage system. |
12 |
AC IN LED |
Green: Normal operation. |
13 |
ALM LED |
Red: Power supply unit can be replaced. |
14 |
RDY LED |
Green: Normal operation. |
Large form-factor (LFF) drive tray
LFF with front panel bezel

Number |
Item |
Description |
1 |
POWER LED |
Green: Drive tray is powered on. |
2 |
READY LED |
Green: Drive tray is operational. |
3 |
LOCATE LED |
Amber:
|
4 |
Lock |
Locks and unlocks the front panel bezel by using the supplied key. |
LFF front panel without bezel

Number |
Item |
Description |
1 |
POWER, READY, and LOCATE LEDs |
Green: Drive tray is powered on. |
Green: Drive tray is operational. | ||
Amber:
| ||
2 |
ACT LED |
Green: Normal operation. Blink green: Drive is being accessed. |
3 | ALM LED | Red: Drive stopped due to a failure and can be replaced. |
4 |
Large form factor drives |
The twelve 3.5-inch large form factor drives are positioned horizontally. The slots are organized in the following order: 8 9 10 11 4 5 6 7 0 1 2 3 |
LFF rear panel

Number |
Item |
Description |
1 |
ENC | N/A |
2 |
POWER LED |
Green: ENC is in the power-on state. |
3 |
LOCATE LED |
Amber:
|
4 |
ALARM LED |
Red: ENC can be replaced. |
5 |
PATH (IN) LED |
Blue: IN side port is linked up. |
6 |
PATH (IN) connector |
Connects to a controller or drive tray. |
7 |
PATH (OUT)LED |
Blue: OUT side port is linked up. |
8 |
PATH (OUT) connector |
Connects to a drive tray. |
9 |
Console |
This port is reserved. |
10 |
Power supply unit | N/A |
11 |
Receptacle |
Connects to the power cable provided with the storage system. |
12 |
AC IN LED |
Green: Normal operation. |
13 |
ALM LED |
Red: Power supply unit can be replaced. |
14 |
RDY LED |
Green: Normal operation. |
Flash module drive (FMD) tray
FMD with front panel bezel

Number |
Item |
Description |
1 |
POWER LED |
Green: Drive tray is powered on. |
2 |
READY LED |
Green: Drive tray is operational. |
3 |
LOCATE LED |
Amber:
|
4 |
Lock |
Locks and unlocks the front panel bezel by using the supplied key. |
FMD front panel without bezel

Number |
Item |
Description |
1, 2 |
ACT LED |
Green: Normal operation. |
Blink: Drive is being accessed. | ||
Slow blink:
Note: ACT indicator is only printed on some types of FMDs. | ||
ALM LED |
Red: Drive stopped due to a failure and can be replaced. Note: ACT indicator is only printed on some types of FMDs. | |
3 |
POWER, READY, and LOCATE LEDs |
Green: Drive tray is powered on. |
Green: Drive tray is operational. | ||
Amber:
| ||
4 | Flash module drives |
Twelve flash module drives. Slots are organized the following way: 9, 10, 11 6, 7, 8 3, 4, 5 0, 1, 2 |
FMD rear panel

Number |
Item |
Description |
1 |
ENC | N/A |
2 |
POWER LED |
Green: ENC is in the power-on state. |
3 |
LOCATE LED |
Amber:
|
4 |
ALARM LED |
Red: ENC can be replaced. |
5 |
PATH (IN) LED |
Blue: IN side port is linked up. |
6 |
PATH (IN) connector |
Connects to a controller or drive tray. |
7 |
PATH (OUT)LED |
Blue: OUT side port is linked up. |
8 |
PATH (OUT) connector |
Connect to a drive tray. |
9 |
Console |
This port is reserved. |
10 |
Receptacle |
Connects to the power cable provided with the storage system. |
11 | Three LEDS, top to bottom:
RDY LED AC IN LED ALM REPLACE LED |
Green: Power supply unit is operating normally. |
Green: Power supply unit is operating normally. | ||
Red: Power supply unit can be replaced. |
Dense intermix drive tray
Dense intermix drive tray with front panel bezel

Number |
Item |
Description |
1 |
POWER LED |
Green: Drive tray is powered on. |
2 |
READY LED |
Green: Drive tray is operational. |
3 |
LOCATE LED |
Amber:
|
4 |
Lock |
Locks and unlocks the front panel bezel by using the supplied key. |
Dense intermix drive tray display LEDs

Number |
Item |
Description |
1 | ACT |
Green: Normal operation. Blink green: Drive is being accessed. |
2 |
ALM LED |
Red: Drive stopped due to a failure and can be replaced. |
- Rear of drive tray: 48-59
- 36-47
- 24-35
- 12-23
- Front of drive tray: 00-11
Dense intermix drive tray rear panel

Number |
Item |
Description |
1 |
Power supply unit | N/A |
2 |
RDY LED |
Green: Normal operation. |
3 |
AC IN LED |
Green: Normal operation. |
4 |
ALM LED |
Red: Power supply unit can be replaced. |
5 |
Receptacle |
Connects to the power cable provided with the storage system. |
6 |
ENC | N/A |
7 |
PATH (OUT)LED |
Blue: OUT side port is linked up. |
8 |
PATH (OUT) connector |
Connect to a drive tray. |
9 |
PATH (IN) LED |
Blue: IN side port is linked up. |
10 |
PATH (IN) connector |
Connects to a controller or drive tray. |
11 |
Console |
This port is reserved. |
12 |
ALARM LED |
Red: ENC can be replaced. |
13 |
LOCATE LED |
Amber:
|
14 |
POWER LED |
Green: ENC is in the power-on state. |
SFF and LFF AC power supply unit LEDs and connectors
Both SFF and LFF drive trays are equipped with AC power supply units. The AC power supply units include LEDs to display its operating status.

Number |
Item |
Description |
1 | RDY LED |
Green: Normal operation. |
2 |
AC IN LED |
Green: AC input is operating normally. |
3 | ALM LED |
Red: Power supply unit can be replaced. |
SFF and LFF DC power supply unit LEDs and connectors
Both SFF and LFF drive trays are equipped with DC power supply units. The DC power supply units include LEDs to display its operating status.

Number |
Item |
Description |
1 | RDY LED |
Green: Normal operation. |
2 | DC IN LED |
Green: DC input is operating normally. |
3 | ALM LED |
Red: Power supply unit can be replaced. |