Rear of the MU

Figure 13: Management Unit (MU) - rear of a MU M1

Figure 14: Management Unit (MU) - rear of a MU M2

The figure 13 and figure 14 show the rear of a MU M1 and MU M2 with PCIe slots which are not equipped.

ID/CSS/Global error indicator

Figure 15: ID/CSS/Global error indicator (MU M1)

Bild 16: ID/CSS/Global error indicator (MU M2)

1	ID/CSS/Global error indicator

ID	ID indicator (blue) Lights up blue when the MU has been selected by pressing the ID button. To deactivate, press the button again. The ID indicator can also be activated via the ServerView Operations Manager and the iRMCS4 web interface, and the status can be reported to the ServerView Operations Manager and the iRMCS4.
CSS	CSS and Global error indicator (yellow/orange)
	Generally, the states of these indicators have the following meanings: Do not light up when the MU is OK. If the event is still acute after a power failure, the indicator is activated after the restart. Light up when a prefailure event was detected. The indicator also lights up in standby mode. Flash when an error was detected. The indicator also flashes in standby mode. Irrespective of the color, when an indicator lights up or flashes this indicates an error event. Please notify customer support.

LAN indicators

Figure 17: LAN indicators (MU M1)

Figure 18: LAN indicators (MU M2)

1	LAN speed	Lights up green for a LAN transfer rate of 1 Gbps. Lights up green for a LAN transfer rate of 100 Mbps. Does not light up for a LAN transfer rate of 10 Mbps.
2	LAN connection/transfer	Lights up green if a LAN connection exists. Does not light up if no LAN connection exists. Flashes green when a LAN transfer is in progress.

Indicator on hot-plug power supply unit

Figure 19: Indicator on hot-plug power supply unit

1

Flashes green when the MU is switched off, but line voltage is present (standby mode). Lights up green when the MU is switched on and functioning properly. Flashes orange when a predictable error has been detected, but the power supply unit is still running. 1) Flashes orange in the case of OCP/OVP or when the power supply unit's fan has failed.

1. The following events are detected as predictable errors:

   • The temperature is very high.

   • The power consumption is very high.

   • The current strength is very high.

   • The fan speed is very low.

   In each of these cases please notify Customer Support.

Assignment of the PCIe slots

The assignment of the PCIe slots differs from MU M1 to MU M2.

PCIe slot assignment on an MU M1

Figure 20: Principle of PCIe slot assignment at the rear of the device (MU M1)

The figure shows the PCIe slots of the MU M1 on an SE700. On the various model series of the SE server, the PCIe slots of an MU M1 are assigned as follows:

PCIe slot	SE700	SE500	SE300
S1	Not assigned.	Not assigned.	Not assigned.
S2	USB card	USB card	Not assigned.
S3	FibreChannel card	FibreChannel card	Not assigned.

Table 2: PCIe slot assignment on an MU M1

The MU M1 can be equipped with a second FibreChannel card in the free PCIe slot S1. Accordingly, two more ports are available for the ROBAR connection and cluster functionality.

PCIe slot assignment on the MU M2

Figure 21: Principle of PCIe slot assignment at the rear of the device (MU M2)

The figure shows the PCIe slots of the MU M2 on an SE700B. On the various model series of the SE server, the PCIe slots of an MU M2 are assigned as follows:

PCIe slot	SE700B	SE500B	SE300B
S2	Not assigned.	Not assigned.	Not assigned.
S3	FibreChannel card	FibreChannel card	Not assigned.
S4	FibreChannel card	FibreChannel card	Not assigned.

Table 3: PCIe slot assignment on an MU M2

The MU M2 can be equipped with another FibreChannel card in the free PCIe slot S2. Accordingly, two more ports are available for the ROBAR connection and cluster functionality.